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The uncommon cavitated secretory trichomes in Bauhinia s.s. (Fabaceae): the same roles in different organs

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Cavitated secretory trichomes are characterized by a short or absent stalk that is connected to a secretory hollow
head. They are rare structures in angiosperms; in Fabaceae, they have been recorded in only seven genera,
including Bauhinia s.s. Because B. curvula and B. rufa exhibit glands that are responsible for attracting pollinators
to flowers, this study aimed to test whether the cavitated secretory trichomes present in the flowers of these species
have an attraction function. As leaf trichomes are commonly related to plant defence, comparative analyses of the
morphology, ontogeny, ultrastructure and chemical profile of the secretory trichomes present in flowers and leaves
were conducted. It was found that cavitated secretory trichomes are similar in their external morphology and
development, regardless of the organ or species analysed. However, interspecific differences were found in the
secretion process and chemical profile of the exudate. The differences found in the cavitated secretory trichomes
between species indicate that they secrete distinct compounds, whereas the similarities found in these structures
between vegetative and reproductive organs indicate that the cavitated trichomes have equivalent ecological
functions within a species, probably in plant defence during organ development.

ADDITIONAL KEYWORDS: development – flower micromorphology – functional anatomy – gas chromatography – Leguminosae – phenolics – plant anatomy – secretory structures – terpenoids – ultrastructure.

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Informasi Detail

Judul Seri

Botanical Journal of the Linnean Society

No. Panggil

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Penerbit

: The Linnean Society of London., 2016

Deskripsi Fisik

Botanical Journal of the Linnean Society, 2016, 180, 104–122

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

BIOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

Lampiran Berkas

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