THE METABOLISM OF FRUCTANS DURING SEED DEVELOPMENT AND GERMINATION IN ONION (ALLIUM-CEPA L)

被引：5
|
作者：
POLLOCK, CJ
LLOYD, EJ
机构：
[1] Environmental Biology Department, AFRC Institute of Grassland and Environmental Research, Aberystwyth
来源：
NEW PHYTOLOGIST | 1994年 / 128卷 / 04期
关键词：
ALLIUM CEPA (ONION); SUCROSE; FRUCTAN; SEED; MATURATION; IMBIBITION; GERMINATION;
D O I：
10.1111/j.1469-8137.1994.tb04023.x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Fructan metabolism was studied during maturation and germination in onion seeds. Fructans formed a significant transient store of carbon during the first 23 d following anthesis with an oligosaccharide distribution which closely resembled that observed in extracts from vegetative tissue. Seed maturation was accompanied by a decline in fructan content and a marked reduction in the number of separable oligosaccharides observed. During imbibition and germination, total fructan contents fell further; however, 4 d after imbibition, there was some elaboration of higher oligosaccharides. The results are discussed in relation to the activity of the enzymes involved in fructan metabolism in higher plants.
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页码：601 / 605
页数：5
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