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当前位置: 首页 > 文章 > 钙及其抑制剂对亚高温逆境条件下番茄秧苗的调控 北方园艺 2010 (6) 16-20
Position: Home > Articles > Regulation of Calcium on Tomato Seeding under Subhigh Temperature Northern Horticulture 2010 (6) 16-20

钙及其抑制剂对亚高温逆境条件下番茄秧苗的调控

作  者：
徐坤鹏;齐明芳;李天来;许涛;张娇;蒋青青
单  位：
沈阳农业大学园艺学院辽宁省设施园艺重点实验室
关键词：
番茄;钙;亚高温
摘  要：
通过喷施CaCl2及EGTA(钙螯合剂)和LaCl3(钙通道阻塞剂),探讨钙对亚高温逆境下番茄幼苗的调控作用。结果表明:CaCl2处理促进了植株在亚高温逆境下的生长,抑制剂LaCl3处理,则加剧了高温对植株的伤害程度;CaCl2处理提高了叶片中各种形态钙的含量,而EGTA与LaCl3处理并没有影响叶片中总钙的含量,但降低了水溶性钙含量,不同程度地增加了果胶酸钙与硅酸钙含量;叶片中水溶性钙与壮苗指数呈显著正相关,而硅酸钙含量与壮苗指数负相关;钙主要通过水溶性钙对亚高温下番茄秧苗起调控作用。
译  名：
Regulation of Calcium on Tomato Seeding under Subhigh Temperature
作  者：
XU Kun-peng,QI Ming-fang,LI Tian-lai,XU Tao,ZHANG Jiao,JIANG Qing-qing(College of Horticulture,Shenyang Agricultural University,Liaoning Key Laboratory of Protected Horticulture,Shenyang,Liaoning 110161)
关键词：
tomato;calcium;sub-high temperature
摘  要：
Regulation of calcium on tomato seeding under sub-high temperature was researched by treating with CaCl2,Ca2+ chelator EGTA,and Ca2+ channel inhibitor LaCl3 on tomato seeding with 7 leaves.The results showed that CaCl2 promoted plant growth under high temperature stress,but LaCl3 and EGTA,especially the first,aggravated the effect of sub-high temperature.CaCl2 increased the content of various fraction of calcium.EGTA and LaCl3 treatments had no effect on total calcium content,but it decreased water-soluble calcium content and increased the content of pectate-bound and calcium silicate fractions.It was showed that the seedling index was significantly positive with the content of water-soluble calcium and negative with the content of calcium silicate.These results were further proved that water-soluble calcium played an important role in regulating tomato seeding under sub-high temperature stress.

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