ETHYLENE-PROMOTED FORMATION OF AERENCHYMA IN SEEDLING ROOTS OF ZEA-MAYS-L UNDER AERATED AND NON-AERATED CONDITIONS
ETHYLENE-PROMOTED FORMATION OF AERENCHYMA IN SEEDLING ROOTS OF ZEA-MAYS-L UNDER AERATED AND NON-AERATED CONDITIONS
复制标题
DOI：
10.1111/j.1399-3054.1982.tb06313.x
复制
发表时间：
1982-01-01
影响因子：
6.4
通讯作者：
KONINGS, H
中科院分区：
文献类型：
--
作者：
KONINGS, H
乙烯在枣树幼苗根溶生皮层腔（通气组织）形成中的作用。Mays L. CV.卡佩拉，在通气和非通气条件下进行了研究。将根从空气传递到通气水或从通气营养液传递到非通气溶液，促进空腔形成，并伴随着内源乙烯浓度的增加。当通过施加乙烯气体（空气中0.1和1.0 μ l/l）或乙烯前体1-氨基环丙烷-1-羧酸来提高通气营养液中根的内源乙烯浓度（否则不会产生太多空洞）时，促进了空洞的形成。当乙烯生物合成抑制剂Co ~（2+）和氨氧乙酸（aminoxyacetic acid）的加入降低了根的内源乙烯浓度时，或当Ag ~（2+）阻止了乙烯的作用时，空洞的形成被阻止了。显然，内源乙烯控制根中空腔形成的诱导。
The role of ethylene in the formation of lysigenous cortical cavities (aerenchyma) in seedling roots of Z. mays L. cv. Capella, was studied under aerated and non-aerated conditions. Passing roots from air to aerated water or from an aerated nutrient solution to a non-aerated solution, promoted cavity formation and was accompanied by an increase of the endogenous ethylene concentration. When the endogenous ethylene concentration of roots in aerated nutrient solutions, which otherwise would not produce much cavities, was enhanced by applying ethylene gas (0.1 and 1.0 .mu.l/l in air) or the ethylene precursor 1-aminocyclopropane-1-carboxylic acid, cavity formation was promoted. When the endogenous ethylene concentration of the roots was reduced by adding the inhibitors of ethylene biosynthesis, Co2+ and aminooxyacetic acid, or when the ethylene action was prevented by Ag+, cavity formation was prevented. Evidently endogenous ethylene controls the induction of cavity formation in the roots.