Effects of trampling and ethephon on leaf morphology in trampling-tolerant Plantago asiatica and Eleusine indica
Effects of trampling and ethephon on leaf morphology in trampling-tolerant Plantago asiatica and Eleusine indica
复制标题
踩踏和乙烯利对耐践踏车前草和牛筋草叶片形态的影响
DOI：
10.1046/j.1365-3180.2003.00329.x
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发表时间：
2003
期刊：
影响因子：
1.7
通讯作者：
H. Ikeda
中科院分区：
文献类型：
--
作者：
Y. Sunohara;H. Ikeda
总结模拟人类践踏对叶形态和乙烯产生的影响，以及乙烯释放剂乙烯利对叶形态的影响进行了研究，为耐践踏的物种，车前草和牛筋草，和践踏敏感的物种，鼠曲草和双沟黍。在Pl.践踏降低了叶长，增加了叶片长宽比和叶片长与叶（叶片+叶柄）长的比值。在大肠而践踏只降低叶片长宽比。践踏增加了完整幼苗的乙烯释放量。asiatica、E. indica和G.仿射乙烯利（1 mM）处理增加了幼苗叶片长宽比。asiatica，而E. indica在形态上的变化类似于践踏。与此相反，没有显着差异，在叶形态观察之间的乙烯利处理和对照幼苗的践踏敏感物种。这些结果表明，践踏耐受的物种比践踏敏感的物种有更高的乙烯反应，并改变其叶片形态响应践踏诱导的乙烯。
Summary The effects of simulated human trampling on leaf morphology and ethylene production as well as the effect of an ethylene releaser ethephon on leaf morphology were investigated for trampling-tolerant species, Plantago asiatica and Eleusine indica, and trampling-susceptible species, Gnaphalium affine and Panicum bisulcatum. In Pl. asiatica, trampling decreased the leaf length and increased the leaf blade length to width ratio and the leaf blade length to leaf (leaf blade + petiole) length ratio. In E. indica, trampling only decreased the leaf blade length to width ratio. Trampling increased ethylene production in intact seedlings of Pl. asiatica, E. indica and G. affine. The ethephon (1 mM) treatment increased the leaf blade length to width ratio in seedlings of Pl. asiatica, but decreased that in seedlings of E. indica in a manner similar to the morphological changes induced by trampling. In contrast, no significant differences in leaf morphology were observed between the ethephon-treated and control seedlings of trampling-susceptible species. These results suggest that trampling-tolerant species have higher responsiveness to ethylene than trampling-susceptible species and change their leaf morphology in response to ethylene induced by trampling.