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Carbohydrate Metabolism Enzymes in Developing Grains of Rice Cultured in Solution with Calcium Supplement
Author(s) -
Wei MengLei,
Sung JihMin
Publication year - 1993
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1993.0011183x003300010031x
Subject(s) - invertase , biology , calcium , starch , sucrose synthase , sucrose , carbohydrate , biochemistry , carbohydrate metabolism , sucrose phosphate synthase , enzyme , amylase , phosphofructokinase , food science , glycolysis , chemistry , organic chemistry
Calcium is known to promote NH 4 uptake and straw growth in rice ( Oryza sative L). Calcium enhancement of grain development has received little attention, however. This study evaluated the efffect of 300 mg Ca L ‐1 on grain growth in solution‐cultured rice plants. It was found that both short‐term and long‐term supplemental Ca stimulated carbohydrate accumulation, and subsequently resulted in greater rain growth. Stimulated carbohydrate accumulation was linked to Ca‐enhanced activity of enzymes, including sucrose synthase, invertase, PPi‐phosphofructokinase, uridine diphosphate‐glucose pyrophosphorylase, and adenosine pyrophosphorylase, which are involved in sucrose to starch conversion.