[叶片组织中ABA的积累和分布显示了其在短期盐胁迫下对气孔导度的调节作用]

[ABA accumulation and distribution during the leaf tissues shows its role stomatal conductance regulation under short-term salinity].

作者信息

Akhiiarova G R, Fricke W, Veselov D S, Kudoiarova G R, Veselov S Iu

出版信息

Tsitologiia. 2006;48(11):918-23.

Abstract

The regulative role of ABA in the rapid plant stomatal reactions in response to salinity was investigated. The influence of the short-term salinity on the overall ABA accumulation and its distribution within the mature leaf (revealed by immunohystochemical technique) and stomatal conductance of barley (Hordeum vulgare L.) were determined. Rapid bulk leaf ABA accumulation and increase in ABA immunolabeling in the mesophyl and guard cells of stomata were shown. The bulk ABA increasing in mature barley leaves coincided with stomatal closure induced by salt treatment indicating on the ABA contribution to the rapid stomatal closure.

摘要

研究了脱落酸（ABA）在植物对盐胁迫快速气孔反应中的调节作用。测定了短期盐胁迫对大麦（Hordeum vulgare L.）成熟叶片中ABA总量积累及其分布（通过免疫组织化学技术揭示）以及气孔导度的影响。结果表明，叶片中ABA总量迅速积累，且气孔中叶肉细胞和保卫细胞的ABA免疫标记增加。成熟大麦叶片中ABA总量的增加与盐处理诱导的气孔关闭同时发生，这表明ABA对气孔快速关闭有作用。