海洋沉积物中半水生植物海榄雌对硫化物、铜和有机氮的生长响应。

Growth Response of Halophila engelmanni Aschers. to Sulfide, Copper, and Organic Nitrogen in Marine Sediments.

机构信息

The University of Texas at Austin, Marine Science Institute, Port Aransas, Texas 78373.

出版信息

Plant Physiol. 1983 Apr;71(4):975-8. doi: 10.1104/pp.71.4.975.

DOI:10.1104/pp.71.4.975

PMID:16662940

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1066155/

Abstract

Growth response of the seagrass Halophila engelmanni Aschers. was studied using defined culture techniques. When added to the rhizosphere, nutrient-seawater medium supported vigorous plant growth, if substantial Cu (10 times that in modified Hoagland solution) plus organic N were present. H(2)S up to 0.2 millimolar in the sediment was not inhibitory. A requirement for exogenous organic N, especially urea, is postulated for vigorous growth of Halophila.

摘要

采用限定培养技术研究了海草海菖蒲（Halophila engelmanni Aschers.）的生长反应。如果向根际添加营养海水培养基，同时存在大量 Cu（是改良 Hoagland 溶液中的 10 倍）和有机 N，则可支持植物的旺盛生长。沉积物中高达 0.2 毫摩尔的 H 2 S 没有抑制作用。推测海菖蒲旺盛生长需要外源有机 N，特别是尿素。