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亚麻酸含量增加不是小麦抗冻性发育的前提条件。

Increase in linolenic Acid is not a prerequisite for development of freezing tolerance in wheat.

机构信息

Ottawa Research Station, Research Branch, Agriculture Canada, Ottawa, Ontario, Canada K1A 0C6.

出版信息

Plant Physiol. 1979 Jan;63(1):5-8. doi: 10.1104/pp.63.1.5.

DOI:10.1104/pp.63.1.5
PMID:16660691
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC542755/
Abstract

Seedlings of winter wheat (Triticum aestivum L. cv. Kharkov) were acclimated at 2 C in the dark in the presence of two inhibitors of linolenic acid synthesis, 4-chloro-5(dimethylamino)-2-phenyl-3(2H)pyridazinone-(BASF 13-338) and 4-chloro-5(dimethylamino)-2-(alpha,alpha,alpha-trifluoro-m-tolyl)- 3(2H)pyridazinone (Sandoz 6706). Although the increase in the proportion of linolenic acid generally observed at low temperature was completely inhibited, the development of freezing tolerance was unaffected. These results demonstrated that an enrichment in linolenic acid is not a prerequisite for low temperature acclimation.

摘要

冬小麦（Triticum aestivum L. cv. Kharkov）幼苗在黑暗中于 2°C 下经低温驯化，同时存在两种亚麻酸合成抑制剂，4-氯-5（二甲基氨基）-2-苯基-3（2H）哒嗪酮（BASF 13-338）和 4-氯-5（二甲基氨基）-2-（α，α，α-三氟-间-甲苯基）-3（2H）哒嗪酮（Sandoz 6706）。尽管低温下通常观察到的亚麻酸比例增加完全受到抑制，但对低温驯化的抗冻性发展没有影响。这些结果表明，亚麻酸的富集不是低温驯化的先决条件。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bdaf/542755/6a6959b83f9f/plntphys00122-0017-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bdaf/542755/5d508e81f0af/plntphys00122-0015-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bdaf/542755/6a6959b83f9f/plntphys00122-0017-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bdaf/542755/5d508e81f0af/plntphys00122-0015-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bdaf/542755/6a6959b83f9f/plntphys00122-0017-a.jpg

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2
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3
Manipulation of galactolipid Fatty Acid composition with substituted pyridazinones.
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4
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