摘要
植物生长素(auxins)是指能引起与(吲哚乙酸IAA)有同样作用的物质的总称(山田长雄等,1997),作为植物激素(phytohormones)的一种,它广泛存在于水生、陆生植物中,对其生产发育起着至关重要的生物活性作用。相对于高等植物,藻类植物生长素的研究起步较晚。本文综合了国内、外相关文献,对藻类中的植物生长素的研究作了较为全面系统的综述。
Auxins are phytohormones,which have been shown to be involved in a great number of diverse plant growth phenomena, such as ovary growth, cambial activity, production of ethylene, and effect on the cell wall. Numerous researches show that auxins also exist in algae and play functional roles in their growth and development. Based on the research results in China and abroad, this article systematically introduces the studies on algae auxins, on their contents, distribution, chemical structures, physiological responses, origin and metabolism. The techniques of their isolation, identificationand measurement are also reviewed in this paper. Generally speaking, the chemical components of auxins in algae are indol acetic acid(IAA)and indol acetic acid-like substances. The distributionof auxins in algae varies with the species, growth stages, position in algae, and their forms. Bioassay systems are not specific enough to eliminate false positive results, and chemical identifications are far from conclusive because of their low concentration. Unambiguous and definitive identifications must be made by gas chromatography-mass spectrometry (GC-MS) and/or nuclear magnetic resonance(NMR).
出处
《海洋科学集刊》
CAS
2000年第1期65-73,共9页
Studia Marina Sinica
