首页 | 本学科首页   官方微博 | 高级检索  
   检索      


A mutant of the cyanobacterium Anabaena variabilis ATCC 29413 lacking cyanophycin synthetase: growth properties and ultrastructural aspects
Authors:Ziegler K  Stephan D P  Pistorius E K  Ruppel H G  Lockau W
Institution:1. Institut für Biologie, Biochemie der Pflanzen, Humboldt-Universität zu Berlin, Chausseestr. 117, D-10115 Berlin, Germany;2. Biologie 1, Morphologie der Pflanzen und Feinbau der Zelle, and Biologie VIII, Zellphysiologie, Universität Bielefeld, P.O. Box 100131, D-33501 Bielefeld, Germany;1. Department of Applied Mathematics, National Research University Higher School of Economics, 20, Myasnitskaya st., Moscow, 101000, Russia;2. Department of Applied Mathematics, Moscow State University of Civil Engineering, 26, Yaroslavskoe Shosse, Moscow, 129337, Russia;1. School of Mechanical Engineering, Shiraz University, Mollasadra Street, Shiraz, Iran;2. Aeronautical & Mechanical Engineering Department, Clarkson University, Potsdam, NY, USA;1. Geologischer Dienst Nordrhein-Westfalen (Geological Survey of North Rhine-Westphalia), De-Greiff-Straße 195, 47803 Krefeld, Germany;2. Senckenberg Naturhistorische Sammlungen Dresden, Museum für Mineralogie und Geologie, Königsbrücker Landstraße 156, 01109 Dresden, Germany;3. Ruhr-Universität Bochum, Institut für Geologie, Universitätsstraße 150, 44801 Bochum, Germany;1. Department of Genetics, Faculty of Veterinary Medicine, Atatürk University, Yakutiye, 25240, Erzurum, Turkey;2. Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Yakutiye, 25240, Erzurum, Turkey
Abstract:The gene cphA encoding cyanophycin synthetase was interrupted in Anabaena variabilis ATCC 29413 by insertional mutagenesis. The mutant lacked cyanophycin granules and the polar nodules of heterocysts. The mutant grew as fast as the wild-type irrespective of the nitrogen source at low light intensity whereas growth on N(2) was somewhat reduced in high light. It is concluded that cyanophycin metabolism and polar nodules are not essential for aerobic N(2) fixation.
Keywords:Cyanophycin  Cyanophycin synthetase  Dinitrogen fixation              Anabaena variabilis ATCC 29413
本文献已被 ScienceDirect PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号