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Production and organ distribution of succinate in rice seedlings during anoxia
Author(s) -
Menegus F.,
Cattaruzza L.,
Chersi A.,
Selva A.,
Fronza G.
Publication year - 1988
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1988.tb02001.x
Subject(s) - coleoptile , oryza sativa , seedling , shoot , biology , succinic acid , elongation , anoxic waters , anaerobic exercise , botany , horticulture , chemistry , biochemistry , ecology , gene , physiology , materials science , ultimate tensile strength , metallurgy
Anaerobic production of succinate, a common feature in animals able to sustain anoxia, has seldom been reported in plants. By the use of 1 H‐nuclear magnetic resonance spectroscopy we show here that succinate is produced by rice seedlings (Oryza sativa L. cv. Arborio) subjected to anoxic conditions. Starting from levels below I μmol (g fresh weight) −1 in air, after 48 h of anoxia the levels of alanine, succinate and lactate had increased to 23.8, 5.2 and 1.0 μmol (g fresh weight) −1 , respectively, in shoot tissues. Succinate was accumulated in shoots, notably in the coleoptiles, but not in roots of the rice seedlings, suggesting its involvement in rice coleoptile elongation under anoxia. Other possible functions of succinate production in rice seedling, an organism highly tolerant to anoxia, are discussed.