Kinetin regulation of growth and secondary metabolism in waterlogging and salinity treated Vigna sinensis and Zea mays
Kinetin regulation of growth and secondary metabolism in waterlogging and salinity treated Vigna sinensis and Zea mays
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DOI：
10.1007/s11738-002-0017-5
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发表时间：
2002-01-01
影响因子：
2.6
通讯作者：
El-Bastawisy, ZM
中科院分区：
文献类型：
--
作者：
Alla, MMN;Younis, ME;El-Bastawisy, ZM
淹水主要增加豇豆和玉米地上部和根系的鲜重和含水量，而盐胁迫则使其鲜重和含水量下降。有一个显着的诱导脯氨酸在两种植物的芽和根的盐度与较低的值在登录的植物。此外，花青素含量增加，在豇豆由两个处理和玉米只由盐。同时，各处理植株地上部中酚类物质的积累量显著增加。两种植物地上部和根中的苯丙氨酸解氨酶（PAL）和酪氨酸解氨酶（TAL）活性也有不同程度的提高。叶面喷施激动素可平衡两种处理对处理植株地上部和根中脯氨酸、花青苷和酚类化合物含量以及PAL和TAL活性的影响。这些结果表明，激动素减轻了胁迫症状，并调节了淹水或盐胁迫处理的豇豆和玉米的酚类代谢变化。
Waterlogging mostly increased fresh weight and water content in shoots and roots of Vigna sinensis and Zea mays while salinity seemed to have a decreasing effect. There was a marked induction of proline in shoots and roots of both plants by salinity with lower values in logged plants. In addition, anthocyanin content was increased in Vigna sinensis by both treatments and in Zea mays only by salinity. Meanwhile the treatments significantly accumulated phenolic compounds in plant shoots. Also there were increased activities of phenylalanine ammonia lyase (PAL) and tyrosine ammonia lyase (TAL) in shoots and roots of both plants. Foliar application of kinetin equilibrated, if any, the effects of both treatments on contents of proline, anthocyanin and phenolic compounds as well as activities of PAL and TAL in shoots and roots of treated plants. These findings reveal that kinetin alleviates the stress symptoms and regulates the changes in phenolic metabolism of waterlogged or salinity treated Vigna sinensis and Zea mays.