{"title":"稻田除草剂对某些固氮藻类的毒性。","authors":"A S Ahluwalia, M Kaur, S Dahuja","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The incorporation of diquat into cultures of Nostoc muscorum and Cylindrospermum sp. Proved to be highly toxic. The range of various concentrations employed varies from 1 microgram/ml 15 micrograms/ml. Relatively higher does (above 5 micrograms/ml) reduced the chlorophyll a content and a progressive decrease in algal growth and ultimately complete lysis of the cells was recorded with the increasing level of the herbicide. A concentration of 15 micrograms/ml has been found to be algicidal for both the test organism.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"44 4","pages":"298-302"},"PeriodicalIF":0.0000,"publicationDate":"2002-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Toxicity of a rice field herbicide in some nitrogen-fixing algae.\",\"authors\":\"A S Ahluwalia, M Kaur, S Dahuja\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The incorporation of diquat into cultures of Nostoc muscorum and Cylindrospermum sp. Proved to be highly toxic. The range of various concentrations employed varies from 1 microgram/ml 15 micrograms/ml. Relatively higher does (above 5 micrograms/ml) reduced the chlorophyll a content and a progressive decrease in algal growth and ultimately complete lysis of the cells was recorded with the increasing level of the herbicide. A concentration of 15 micrograms/ml has been found to be algicidal for both the test organism.</p>\",\"PeriodicalId\":84892,\"journal\":{\"name\":\"Indian journal of environmental health\",\"volume\":\"44 4\",\"pages\":\"298-302\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Indian journal of environmental health\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian journal of environmental health","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Toxicity of a rice field herbicide in some nitrogen-fixing algae.
The incorporation of diquat into cultures of Nostoc muscorum and Cylindrospermum sp. Proved to be highly toxic. The range of various concentrations employed varies from 1 microgram/ml 15 micrograms/ml. Relatively higher does (above 5 micrograms/ml) reduced the chlorophyll a content and a progressive decrease in algal growth and ultimately complete lysis of the cells was recorded with the increasing level of the herbicide. A concentration of 15 micrograms/ml has been found to be algicidal for both the test organism.
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