CHANGES IN GLUCOSINOLATES DURING CROP DEVELOPMENT IN SINGLE-LOW AND DOUBLE-LOW GENOTYPES OF WINTER OILSEED RAPE (BRASSICA-NAPUS) .1. PRODUCTION AND DISTRIBUTION IN VEGETATIVE TISSUES AND DEVELOPING PODS DURING DEVELOPMENT AND POTENTIAL ROLE IN THE RECYCLING OF SULFUR WITHIN THE CROP
CHANGES IN GLUCOSINOLATES DURING CROP DEVELOPMENT IN SINGLE-LOW AND DOUBLE-LOW GENOTYPES OF WINTER OILSEED RAPE (BRASSICA-NAPUS) .1. PRODUCTION AND DISTRIBUTION IN VEGETATIVE TISSUES AND DEVELOPING PODS DURING DEVELOPMENT AND POTENTIAL ROLE IN THE RECYCLING OF SULFUR WITHIN THE CROP
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DOI：
10.1111/j.1744-7348.1994.tb04157.x
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发表时间：
1994-06-01
影响因子：
2.6
通讯作者：
MILFORD, GFJ
中科院分区：
文献类型：
--
作者：
FIELDSEND, J;MILFORD, GFJ
硫代葡萄糖苷和硫的分布测定了一系列的单低和双低品种的油菜（Bienvenu，Ariana，Cobra和Capricorn）的营养和生殖组织中生长在一个硫充足的土壤在Rothamsted在1987/88年，并在作物的cv。1990/1991年在沃本缺硫土壤上，不施硫或施硫40 kg/hm 2的Libravo，硫代葡萄糖苷测定结果表明，单低和双低品种硫代葡萄糖苷合成能力存在较大差异，且这种差异与荚果发育有关，而与营养组织有关。这表明，来自营养组织的完整硫代葡萄糖苷对种子的潜在贡献可能很小，但不排除营养组织是硫代葡萄糖苷前体来源的可能性。硫的测量表明，硫代葡萄糖苷只占作物总硫的一小部分，即使在严重缺硫的情况下，它们也不可能成为可回收硫的主要来源。
The distributions of glucosinolates and sulphur were measured in the vegetative and reproductive tissues in a series of single- and double-low cultivars of oilseed rape (Bienvenu, Ariana, Cobra and Capricorn) grown on a sulphur-sufficient soil at Rothamsted in 1987/88, and in crops of the cv. Libravo grown with none or 40 kg/ha of sulphur on a sulphur-deficient soil at Woburn in 1990/91.The glucosinolate measurements demonstrated large differences in the abilities of single- and double-low cultivars to synthesise glucosinolates, and showed that the biosynthetic differences were associated more with the developing pods than the vegetative tissues. It indicated that potential contribution of intact glucosinolates from vegetative tissues to the seed was likely to be small, but did not preclude the possibility that the vegetative tissues were a source of glucosinolate precursors. The sulphur measurements showed that the glucosinolates contained only a small proportion of the crop's total sulphur and that they were unlikely to be a major source of recyclable sulphur, even under conditions of severe sulphur deficiency.