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.
引用
收藏
页码：601 / 605
页数：5
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