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Ca2þ and aminoguanidine on g-aminobutyric acid accumulation in germinating soybean under hypoxiaeNaCl stress

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Gamma-aminobutyric acid (GABA), a nonproteinous amino acid with some benefits on human health, is synthesized by GABA-shunt and the polyamine degradation pathway in plants. The regulation of Ca2þ and aminoguanidine on GABA accumulation in germinating soybean (Glycine max L.) under hypoxia-NaCl stress was investigated in this study. Exogenous
Ca2þ increased GABA content significantly by enhancing glutamate decarboxylase gene expression and its activity. Addition of ethylene glycol tetra-acetic acid into the culture solution reduced GABA content greatly due to the inhibition of glutamate decarboxylase activity. Aminoguanidine reduced over 85% of diamine oxidase activity, and
33.28% and 36.35% of GABA content in cotyledon and embryo, respectively. Under hypoxia eNaCl stress, the polyamine degradation pathway contributed 31.61e39.43% of the GABA formation in germinating soybean.

Keywords:
aminoguanidine Ca2þ g-aminobutyric acid germinating soybean hypoxiaeNaCl stress

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Informasi Detail

Judul Seri

j ournal of food and drug anal ys i s

No. Panggil

-

Penerbit

: Elsevier Taiwan., 2015

Deskripsi Fisik

j ournal of food and drug anal ys i s 2 3 ( 2 0 1 5 ) 2 8 7 e2 9 3

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

-

Subjek

Food And Health

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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