Ditapis dengan
Cotyledon damage affects seed number through final plant size in the annual g…
Background and Aims The effects of cotyledon damage on seedling growth and survival are relatively well established, but little is known about the effects on aspects of plant fitness such as seed number and size. Here the direct and indirect mechanisms linking cotyledon damage and plant fitness in the annual species Medicago lupulina are examined. Methods Growth and reproductive traits, inclu…
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- Deskripsi Fisik
- Annals of Botany 107: 437–442, 2011
- Judul Seri
- Annals of Botany
- No. Panggil
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Correlation between number and position of floral organs in Arabidopsis
Background and Aims The study of variation in number, position and type of floral organs may serve as a key to understanding the mechanisms underlying their variation, and will make it possible to improve the analysis of gene function in model plant species by means of a more accurate characterization of mutant phenotypes. The present analysis was carried out in order to understand the correlat…
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- Annals of Botany 108: 123–131, 2011
- Judul Seri
- Annals of Botany
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Correlation between dynamic tomato fruit-set and source–sink ratio: a commo…
Background and Aims It is widely accepted that fruit-set in plants is related to source–sink ratio. Despite its critical importance to yield, prediction of fruit-set remains an ongoing problem in crop models. Functional–structural plant models are potentially able to simulate organ-level plasticity of plants. To predict fruit-set, the quantitative link between source–sink ratio and fruit-…
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- Deskripsi Fisik
- Annals of Botany 107: 805–815, 2011
- Judul Seri
- Annals of Botany
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Correlated responses of root growth and sugar concentrations to various defol…
Background and Aims To understand whether root responses to aerial rhythmic growth and contrasted defoliation treatments can be interpreted under the common frame of carbohydrate availability; root growth was studied in parallel with carbohydrate concentrations in different parts of the root system on oak tree seedlings. Methods Quercus pubescens seedlings were submitted to selective defoliati…
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- Deskripsi Fisik
- Annals of Botany 107: 653–662, 2011
- Judul Seri
- Annals of Botany
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Contrasting dynamics of radial O2-loss barrier induction and aerenchyma forma…
Background and Aims Many wetland species form aerenchyma and a barrier to radial O2 loss (ROL) in roots. These features enhance internal O2 diffusion to the root apex. Barrier formation in rice is induced by growth in stagnant solution, but knowledge of the dynamics of barrier induction and early anatomical changes was lacking. Methods ROL barrier induction in short and long roots of rice (Or…
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- Annals of Botany 107: 89–99, 2011
- Judul Seri
- Annals of Botany
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Compatibility and incompatibility in S-RNase-based systems
Background S-RNase-based self-incompatibility (SI) occurs in the Solanaceae, Rosaceae and Plantaginaceae. In all three families, compatibility is controlled by a polymorphic S-locus encoding at least two genes. S-RNases determine the specificity of pollen rejection in the pistil, and S-locus F-box proteins fulfill this function in pollen. S-RNases are thought to function as S-specific cytotox…
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- Deskripsi Fisik
- Annals of Botany 108: 647–658, 2011
- Judul Seri
- Annals of Botany
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Comparison of three approaches to model grapevine organogenesis in conditions…
Background and Aims There is increasing interest in the development of plant growth models representing the complex system of interactions between the different determinants of plant development. These approaches are particularly relevant for grapevine organogenesis, which is a highly plastic process dependent on temperature, solar radiation, soil water deficit and trophic competition. Methods…
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- Annals of Botany 107: 729–745, 2011
- Judul Seri
- Annals of Botany
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Comparative labellar micromorphology of Zygopetalinae (Orchidaceae)
Background and Aims Molecular evidence indicates that the Neotropical sub-tribe Zygopetalinae is sister to Maxillariinae. Most members of the latter sub-tribe have deceit pollination strategies, but some species produce rewards such as nectar, pseudopollen, resin and wax, and are pollinated by a range of pollinators that include stingless bees (Meliponini), wasps and hummingbirds. By contrast, …
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- Annals of Botany 108: 945–964, 2011
- Judul Seri
- Annals of Botany
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Comparative anatomy of the nectary spur in selected species of Aeridinae (Orc…
Background and Aims To date, the structure of the nectary spur of Aeridinae has not been studied in detail, and data relating to the nectaries of ornithophilous orchids remain scarce. The present paper compares the structural organization of the floral nectary in a range of Aeridinae species, including both entomophilous and ornithophilous taxa. Methods Nectary spurs of Ascocentrum ampullaceum…
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- Annals of Botany 107: 327–345, 2011
- Judul Seri
- Annals of Botany
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Common allometric response of open-grown leader shoots to tree height in co-o…
Background and Aims Morphology of crown shoots changes with tree height. The height of forest trees is usually correlated with the light environment and this makes it difficult to separate the effects of tree size and of light conditions on the morphological plasticity of crown shoots. This paper addresses the tree-height dependence of shoot traits under full-light conditions where a tree crow…
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- Annals of Botany 108: 1279–1286, 2011
- Judul Seri
- Annals of Botany
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Climbing plants in a temperate rainforest understorey: searching for high lig…
Background and Aims While the climbing habit allows vines to reach well-lit canopy areas with a minimum investment in support biomass, many of them have to survive under the dim understorey light during certain stages of their life cycle. But, if the growth/survival trade-off widely reported for trees hold for climbing plants, they cannot maximize both light-interception efficiency and shade a…
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- Annals of Botany 108: 231–239, 2011
- Judul Seri
- Annals of Botany
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Chromosome pairing affinities in interspecific hybrids reflect phylogenetic d…
Background and Aims Lady’s slipper orchids (Paphiopedilum) are of high value in floriculture, and interspecific hybridization has long been used for breeding improved cultivars; however, information regarding the genome affinities of species and chromosome pairing behaviour of the hybrids remains almost unknown. The present work analyses the meiotic behaviour of interspecific hybrids by genom…
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- Annals of Botany 108: 113–121, 2011
- Judul Seri
- Annals of Botany
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Chloroplast to chromoplast transition in tomato fruit: spectral confocal micr…
Background and Aims There are several studies suggesting that tomato (Solanum lycopersicum) chromoplasts arise from chloroplasts, but there is still no report showing the fluorescence of both chlorophylls and carotenoids in an intermediate plastid, and no video showing this transition phase. Methods Pigment fluorescence within individual plastids, isolated from tomato fruit using sucrose grad…
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- Annals of Botany 108: 291–297, 2011
- Judul Seri
- Annals of Botany
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Characterization of three-dimensional spatial aggregation and association pat…
Background and Aims Characterization of spatial patterns of plant disease can provide insights into important epidemiological processes such as sources of inoculum, mechanisms of dissemination, and reproductive strategies of the pathogen population. Whilst two-dimensional patterns of disease (among plants within fields) have been studied extensively, there is limited information on three-dimens…
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- Deskripsi Fisik
- Annals of Botany 108: 1195–1202, 2011
- Judul Seri
- Annals of Botany
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Characterization of the interactions between architecture and source–sink r…
Background and Aims This study aimed to characterize the interaction between architecture and source–sink relationships in winter oilseed rape (WOSR): do the costs of ramification compromise the source–sink ratio during seed filling? The GreenLab model is a good candidate to address this question because it has been already used to describe interactions between source–sink relationship…
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- Deskripsi Fisik
- Annals of Botany 107: 765–779, 2011
- Judul Seri
- Annals of Botany
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Changes in duration of developmental phases of durum wheat caused by breeding…
Background and Aims Although the apical development of wheat has been widely described, studies analysing how genetic breeding over the 20th century influenced the developmental phases and its consequences on yield generation are lacking, especially for durum wheat under field conditions in Mediterranean environments. The aims of this study were to analyse the effects of breeding in Spain and I…
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- Annals of Botany 107: 1355–1366, 2011
- Judul Seri
- Annals of Botany
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Centennial olive trees as a reservoir of genetic diversity
Background and Aims Genetic characterization and phylogenetic analysis of the oldest trees could be a powerful tool both for germplasm collection and for understanding the earliest origins of clonally propagated fruit crops. The olive tree (Olea europaea L.) is a suitable model to study the origin of cultivars due to its long lifespan, resulting in the existence of both centennial and millennia…
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- Annals of Botany 108: 797–807, 2011
- Judul Seri
- Annals of Botany
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Cell-cycle control as a target for calcium, hormonal and developmental signal…
Background During the life cycle of plants, both embryogenic and post-embryogenic growth are essentially based on cell division and cell expansion that are under the control of inherited developmental programmes modified by hormonal and environmental stimuli. Considering either stimulation or inhibition of plant growth, the key role of plant hormones in the modification of cell division activi…
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- Annals of Botany 107: 1193–1202, 2011
- Judul Seri
- Annals of Botany
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Cell division and cell elongation in the coleoptile of rice alcohol dehydroge…
Background and Aims When rice seeds germinate under complete submergence, only the coleoptile elongates efficiently. It has been reported previously that coleoptile elongation is reduced in the rice alcohol dehydrogenase 1 (ADH1)-deficient mutant, reduced adh activity (rad). The aim of this study was to elucidate how expressions of genes responsible for coleoptile elongation are affected by th…
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- Annals of Botany 108: 253–261, 2011
- Judul Seri
- Annals of Botany
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Casparian bands occur in the periderm of Pelargonium hortorum stem and root
Background and Aims Casparian bands are characteristic of the endodermis and exodermis of roots, but also occur infrequently in other plant organs, for example stems and leaves. To date, these structures have not been detected in phellem cells of a periderm. The aim of this study was to determine whether Casparian bands occur in phellem cells using tests that are known to detect Casparian ba…
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- Annals of Botany 107: 591–598, 2011
- Judul Seri
- Annals of Botany
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Carrion mimicry in a South African orchid: flowers attract a narrow subset of…
Background and Aims Although pollination of plants that attract flies by resembling their carrion brood and food sites has been reported in several angiosperm families, there has been very little work done on the level of specificity in carrion mimicry systems and the importance of plant cues in mediating such specialization. Specificity may be expected, as carrion-frequenting flies often expl…
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- Annals of Botany 107: 981–992, 2011
- Judul Seri
- Annals of Botany
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Carpeloidy in flower evolution and diversification: a comparative study in Ca…
Background and Aims Bisexual flowers of Carica papaya range from highly regular flowers to morphs with various fusions of stamens to the ovary. Arabidopsis thaliana sup1 mutants have carpels replaced by chimeric carpel–stamen structures. Comparative analysis of stamen to carpel conversions in the two different plant systems was used to understand the stage and origin of carpeloidy when deriv…
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- Annals of Botany 107: 1453–1463, 2011
- Judul Seri
- Annals of Botany
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Cadmium induces hypodermal periderm formation in the roots of the monocotyled…
Background and Aims Merwilla plumbea is an important African medicinal plant. As the plants grow in soils contaminated with metals from mining activities, the danger of human intoxication exists. An experiment with plants exposed to cadmium (Cd) was performed to investigate the response of M. plumbea to this heavy metal, its uptake and translocation to plant organs and reaction of root tissues.…
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- Annals of Botany 107: 285–292, 2011
- Judul Seri
- Annals of Botany
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Cabomba as a model for studies of early angiosperm evolution
Background The angiosperms, or flowering plants, diversified in the Cretaceous to dominate almost all terrestrial environments. Molecular phylogenetic studies indicate that the orders Amborellales, Nymphaeales and Austrobaileyales, collectively termed the ANA grade, diverged as separate lineages from a remaining angiosperm clade at a very early stage in flowering plant evolution. By comparing t…
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- Annals of Botany 108: 589–598, 2011
- Judul Seri
- Annals of Botany
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Bridging global and microregional scales: ploidy distribution in Pilosella ec…
Background and Aims A detailed knowledge of cytotype distribution can provide important insights into the evolutionary history of polyploid systems. This study aims to explore the spatial distribution of different cytotypes in Pilosella echioides at various spatial scales (from the whole distributional range to the population level) and to outline possible evolutionary scenarios for the observe…
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- Annals of Botany 107: 443–454, 2011
- Judul Seri
- Annals of Botany
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Breeding crop plants with deep roots: their role in sustainable carbon, nutri…
Background The soil represents a reservoir that contains at least twice as much carbon as does the atmosphere, yet (apart from ‘root crops’) mainly just the above-ground plant biomass is harvested in agriculture, and plant photosynthesis represents the effective origin of the overwhelming bulk of soil carbon. However, present estimates of the carbon sequestration potential of soils are base…
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- Annals of Botany 108: 407–418, 2011
- Judul Seri
- Annals of Botany
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Brachypodium distachyon as a new model system for understanding iron homeosta…
Background and Aims Brachypodium distachyon is a temperate grass with a small stature, rapid life cycle and completely sequenced genome that has great promise as a model system to study grass-specific traits for crop improvement. Under iron (Fe)-deficient conditions, grasses synthesize and secrete Fe(III)-chelating agents called phytosiderophores (PS). In Zea mays, Yellow Stripe1 (ZmYS1) is the…
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- Annals of Botany 108: 821–833, 2011
- Judul Seri
- Annals of Botany
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Auxin, cytokinin and the control of shoot branching
Background It has been known for many decades that auxin inhibits the activation of axillary buds, and hence shoot branching, while cytokinin has the opposite effect. However, the modes of action of these two hormones in branching control is still a matter of debate, and their mechanisms of interaction are equally unresolved. Scope Here we review the evidence for various hypotheses that have b…
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- Annals of Botany 107: 1203–1212, 2011
- Judul Seri
- Annals of Botany
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Association between simple sequence repeat-rich chromosome regions and interg…
Background and Aims Repetitive DNA sequences are thought to be involved in the formation of chromosomal rearrangements. The aim of this study was to analyse the distribution of microsatellite clusters in Aegilops biuncialis and Aegilops geniculata, and its relationship with the intergenomic translocations in these allotetraploid species, wild genetic resources for wheat improvement. Methods T…
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- Annals of Botany 107: 65–76, 2011
- Judul Seri
- Annals of Botany
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Association between border cell responses and localized root infection by pat…
Background and Aims The oomycete Aphanomyces euteiches causes up to 80 % crop loss in pea (Pisum sativum). Aphanomyces euteiches invades the root system leading to a complete arrest of root growth and ultimately to plant death. To date, disease control measures are limited to crop rotation and no resistant pea lines are available. The present study aims to get a deeper understanding of the ear…
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- Deskripsi Fisik
- Annals of Botany 108: 459–469, 2011
- Judul Seri
- Annals of Botany
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Assessment of uncertainty in functional–structural plant models
Background and Aims Constructing functional–structural plant models (FSPMs) is a valuable method for examining how physiology and morphology interact in determining plant processes. However, such models always have uncertainty concerned with whether model components have been selected and represented effectively, with the number of model outputs simulated and with the quality of data used i…
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- Deskripsi Fisik
- Annals of Botany 108: 1043–1053, 2011
- Judul Seri
- Annals of Botany
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Arbuscular mycorrhizal fungi alter plant allometry and biomass–density rela…
Background and Aims Plant biomass–density relationships during self-thinning are determined mainly by allometry. Both allometry and biomass–density relationship have been shown to vary with abiotic conditions, but the effects of biotic interactions have not been investigated. Arbuscular mycorrhizal fungi (AMF) can promote plant growth and affect plant form. Here experiments were carried out…
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- Deskripsi Fisik
- Annals of Botany 107: 407–413, 2011
- Judul Seri
- Annals of Botany
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Arabidopsis T-DNA insertional lines for CDC25 are hypersensitive to hydroxyur…
Background and Aims In yeasts and animals, cyclin-dependent kinases are key regulators of cell cycle progression and are negatively and positively regulated by WEE1 kinase and CDC25 phosphatase, respectively. In higher plants a full-length orthologue of CDC25 has not been isolated but a shorter gene with homology only to the C-terminal catalytic domain is present. The Arabidopis thaliana;CDC25 …
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- Annals of Botany 107: 1183–1192, 2011
- Judul Seri
- Annals of Botany
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Apomixis is not prevalent in subnival to nival plants of the European Alps
Background and Aims High alpine environments are characterized by short growing seasons, stochastic climatic conditions and fluctuating pollinator visits. These conditions are rather unfavourable for sexual reproduction of flowering plants. Apomixis, asexual reproduction via seed, provides reproductive assurance without the need of pollinators and potentially accelerates seed development. There…
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- Annals of Botany 108: 381–390, 2011
- Judul Seri
- Annals of Botany
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Angiosperm ovules: diversity, development, evolution
Background Ovules as developmental precursors of seeds are organs of central importance in angiosperm flowers and can be traced back in evolution to the earliest seed plants. Angiosperm ovules are diverse in their position in the ovary, nucellus thickness, number and thickness of integuments, degree and direction of curvature, and histological differentiations. There is a large body of literat…
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- Annals of Botany 107: 1465–1489, 2011
- Judul Seri
- Annals of Botany
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Anatomical features associated with water transport in imperforate tracheary …
Background and Aims Imperforate tracheary elements (ITEs) in wood of vessel-bearing angiosperms may or may not transport water. Despite the significance of hydraulic transport for defining ITE types, the combination of cell structure with water transport visualization in planta has received little attention. This study provides a quantitative analysis of structural features associated with the…
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- Annals of Botany 107: 953–964, 2011
- Judul Seri
- Annals of Botany
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Analyses of two rice (Oryza sativa) cyclin-dependent kinase inhibitors and ef…
Background and Aims Plants have a family of proteins referred to as ICKs (inhibitors of cyclin-dependent kinase, CDK) or KRPs (Kip-related proteins) that function to regulate the activities of CDK. Knowledge of these plant CDK inhibitors has been gained mostly from studies of selected members in dicotyledonous plants, particularly Arabidopsis. Much remains to be learned regarding the differe…
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- Annals of Botany 107: 1087–1101, 2011
- Judul Seri
- Annals of Botany
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Analyses of phylogeny, evolution, conserved sequences and genome-wide express…
Background and Aims The cell cycle is controlled by cyclin-dependent kinases (CDKs), and CDK inhibitors are major regulators of their activities. The ICK/KRP family of CDK inhibitors has been reported in several plants, with seven members in arabidopsis; however, the phylogenetic relationship among members in different species is unknown. Also, there is a need to understand how these genes and …
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- Annals of Botany 107: 1141–1157, 2011
- Judul Seri
- Annals of Botany
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An extensin-rich matrix lines the carinal canals in Equisetum ramosissimum, w…
Background and Aims The anatomy of Equisetum stems is characterized by the occurrence of vallecular and carinal canals. Previous studies on the carinal canals in several Equisetum species suggest that they convey water from one node to another. Methods Cell wall composition and ultrastructure have been studied using immunocytochemistry and electron microscopy, respectively. Serial sectioning…
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- Annals of Botany 108: 307–319, 2011
- Judul Seri
- Annals of Botany
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An evaluation of small-scale genetic diversity and the mating system in Zoste…
Background and Aims The dwarf eelgrass, Zostera noltii, is a predominant inhabitant of soft-bottom intertidal regions along the coasts of northern Europe. It is a monoecious, protogynous angiosperm in which the potential for self-fertilization and inbreeding are high, especially if clone sizes exceed pollen dispersal distances. The aim of the present study was to determine the relationship betw…
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- Deskripsi Fisik
- Annals of Botany 107: 127–133, 2011
- Judul Seri
- Annals of Botany
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An assessment of morphogenetic fluctuation during reproductive phase change i…
Background and Aims Reproductive phase change in Arabidopsis thaliana is characterized by two transitions in phytomer identity, the differentiation of the first elongate internode (bolting transition) and of the first flower (floral transition). An evaluation of the dynamics of these transitions was sought by examining the precision of the corresponding phytomer identity changes. Methods The l…
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- Annals of Botany 107: 1017–1027, 2011
- Judul Seri
- Annals of Botany
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Ammonia emission from rice leaves in relation to photorespiration and genotyp…
Background and Aims Rice (Oryza sativa) plants lose significant amounts of volatile NH3 from their leaves, but it has not been shown that this is a consequence of photorespiration. Involvement of photorespiration in NH3 emission and the role of glutamine synthetase (GS) on NH3 recycling were investigated using two rice cultivars with different GS activities. Methods NH3 emission (AER), and gro…
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- Annals of Botany 108: 1381–1386, 2011
- Judul Seri
- Annals of Botany
- No. Panggil
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Alternate transcripts of a floral developmental regulator have both distinct …
Background and Aims The MADS-box transcription factor AGAMOUS (AG) is an important regulator of stamen and fruit identity as well as floral meristem determinacy in a number of core eudicots and monocots. However, its role outside of these groups has not been assessed explicitly. Examining its role in opium poppy, a basal eudicot, could uncover much about the evolution and development of flower…
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- Deskripsi Fisik
- Annals of Botany 107: 1557–1566, 2011
- Judul Seri
- Annals of Botany
- No. Panggil
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Allotetraploid origin and divergence in Eleusine (Chloridoideae, Poaceae): ev…
Background and Aims Eleusine (Poaceae) is a small genus of the subfamily Chloridoideae exhibiting considerable morphological and ecological diversity in East Africa and the Americas. The interspecific phylogenetic relationships of Eleusine are investigated in order to identify its allotetraploid origin, and a chronogram is estimated to infer temporal relationships between palaeoenvironment chan…
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- Deskripsi Fisik
- Annals of Botany 108: 1287–1298, 2011
- Judul Seri
- Annals of Botany
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Adjustment to the light environment in small-statured forbs as a strategy for…
Background and Aims The biological mechanisms of niche complementarity allowing for a stable coexistence of a large number of species in a plant community are still poorly understood. This study investigated how smallstatured forbs use environmental niches in light and CO2 to explain their persistence in diverse temperate grasslands. Methods Light and CO2 profiles and the corresponding leaf c…
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- Deskripsi Fisik
- Annals of Botany 107: 965–979, 2011
- Judul Seri
- Annals of Botany
- No. Panggil
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Acquisition of physical dormancy and ontogeny of the micropyle–water-gap co…
Background and Aims The ‘hinged valve gap’ has been previously identified as the initial site of water entry (i.e. water gap) in physically dormant (PY) seeds of Geranium carolinianum (Geraniaceae). However, neither the ontogeny of the hinged valve gap nor acquisition of PY by seeds of Geraniaceae has been studied previously. The aims of the present study were to investigate the physiologic…
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- Annals of Botany 108: 51–64, 2011
- Judul Seri
- Annals of Botany
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A temporary immersion system improves in vitro regeneration of peach palm thr…
Background and Aims Secondary somatic embryogenesis has been postulated to occur during induction of peach palm somatic embryogenesis. In the present study this morphogenetic pathway is described and a protocol for the establishment of cycling cultures using a temporary immersion system (TIS) is presented. Methods Zygotic embryos were used as explants, and induction of somatic embryogenesis a…
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- Deskripsi Fisik
- Annals of Botany 108: 1463–1475, 2011
- Judul Seri
- Annals of Botany
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A stochastic model of tree architecture and biomass partitioning: application…
Background and Aims Mongolian Scots pine (Pinus sylvestris var. mongolica) is one of the principal species used for windbreak and sand stabilization in arid and semi-arid areas in northern China. A model-assisted analysis of its canopy architectural development and functions is valuable for better understanding its behaviour and roles in fragile ecosystems. However, due to the intrinsic complex…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Annals of Botany 107: 781–792, 2011
- Judul Seri
- Annals of Botany
- No. Panggil
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A mathematical framework for modelling cambial surface evolution using a leve…
Background and Aims During their lifetime, tree stems take a series of successive nested shapes. Individual tree growth models traditionally focus on apical growth and architecture. However, cambial growth, which is distributed over a surface layer wrapping the whole organism, equally contributes to plant form and function. This study aims at providing a framework to simulate how organism shape…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Annals of Botany 108: 1001–1011, 2011
- Judul Seri
- Annals of Botany
- No. Panggil
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A hundred-year-old question: is the moss calyptra covered by a cuticle? A cas…
Background and Aims The maternal gametophytic calyptra is critical for moss sporophyte development and ultimately sporogenesis. The calyptra has been predicted to protect the sporophyte apex, including the undifferentiated sporogenous region and seta meristem, from desiccation. We investigate the hypothesis that this waterproofing ability is due to a waxy cuticle. The idea that moss calyptrae a…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Annals of Botany 107: 1279–1286, 2011
- Judul Seri
- Annals of Botany
- No. Panggil
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