Dehydration induces expression of galactinol synthase and raffinose synthase in seedlings of pea (Pisum sativum L.)
PBN-AR
Instytucja
Wydział Biologii i Biotechnologii (Uniwersytet Warmińsko-Mazurski w Olsztynie)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Plant Physiology
ISSN
0176-1617
EISSN
Wydawca
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI
URL
Rok publikacji
2014
Numer zeszytu
Strony od-do
1306-1314
Numer tomu
171
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
Pea Seedling Dehydration Galactinol synthase Raffinose synthase
Streszczenia
Język
en
Treść
The exposition of 7-day-old pea seedlings to dehydration induced sudden changes in the concentration of monosaccharides and sucrose in epicotyl and roots tissues. During 24 h of dehydration, the concentration of glucose and, to a lesser extent, fructose in seedling tissues decreased. The accumulation of sucrose was observed in roots after 4 h and in epicotyls after 8 h of stress. Epicotyls and roots also began to accumulate galactinol and raffinose after 8 h of stress, when small changes in the water content of tissues occurred. The accumulation of galactinol and raffinose progressed parallel to water withdrawal from tissues, but after seedling rehydration both galactosides disappeared. The synthesis of galactinol and raffinose by an early induction (during the first hour of treatment) of galactinol synthase (PsGolS) and raffinose synthase (PsRS) gene expression as well as a later increase in the activity of both enzymes was noted. Signals possibly triggering the induction of PsGolS and PsRS gene expression and accumulation of galactinol and raffinose in seedlings are discussed.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
520202
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