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腐殖质在植物-土壤界面的生物活性:从环境方面到分子因素。

Humic substances biological activity at the plant-soil interface: from environmental aspects to molecular factors.

机构信息

Department of Agricultural Biotechnology; University of Padua, Agripolis, Legnaro, Padova, Italy.

出版信息

Plant Signal Behav. 2010 Jun;5(6):635-43. doi: 10.4161/psb.5.6.11211. Epub 2010 Jun 1.

Abstract

Humic substances (HS) represent the organic material mainly widespread in nature. HS have positive effects on plant physiology by improving soil structure and fertility and by influencing nutrient uptake and root architecture. The biochemical and molecular mechanisms underlying these events are only partially known. HS have been shown to contain auxin and an "auxin-like" activity of humic substances has been proposed, but support to this hypothesis is fragmentary. In this review article, we are giving an overview of available data concerning molecular structures and biological activities of humic substances, with special emphasis on their hormone-like activities.

摘要

腐殖质(HS)是一种广泛存在于自然界中的有机物质。HS 对植物生理学有积极影响,可改善土壤结构和肥力,并影响养分吸收和根系结构。这些事件背后的生化和分子机制仅部分为人所知。HS 被证明含有生长素,并且提出了腐殖质的“类似生长素”活性,但对这一假说的支持是零碎的。在这篇综述文章中,我们概述了有关腐殖质的分子结构和生物活性的现有数据,特别强调了它们的激素样活性。

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