Estep M, Armstrong J E, Van Baalen C
Appl Microbiol. 1975 Aug;30(2):186-8. doi: 10.1128/am.30.2.186-188.1975.
Aqueous extracts of samples from representtive types of near-shore marine ecosystems were examined for growth-promoting activity for the siderochrome auxotroph, Arthrobacter JG-9. Blue-green algal mat and sea grass samples gave strongly positive responses. Relative to Desferal (Ciba Pharmaceutical Co., Summit, N.J.), concentrations up to 110 ng/g (wet weight) of sample were found. In contrast, extracts of anaerobic muds or macroalgae gave no detectable activity. The hydroxamate type of iron chelator may be important in providing a form of iron in sea water readily utilized by the microalgae and marine higher plants.
检测了来自代表性近岸海洋生态系统类型的样本水提取物对铁载体营养缺陷型节杆菌JG-9的促生长活性。蓝绿藻垫和海草样本给出了强烈的阳性反应。相对于去铁胺（新泽西州萨米特市汽巴制药公司），在样本中发现了高达110纳克/克（湿重）的浓度。相比之下，厌氧泥浆或大型海藻的提取物没有可检测到的活性。异羟肟酸型铁螯合剂在提供一种微藻和海洋高等植物易于利用的海水中铁的形式方面可能很重要。
