The structures of the pyoverdins from two Pseudomonas fluorescens strains accepted mutually by their respective producers.
نویسندگان
چکیده
From Pseudomonas fluorescens PL7 and PL8 structurally related pyoverdins were isolated and their primary structures were elucidated by spectroscopic methods and degradation reactions. Despite of some structural differences both Fe(III) complexes are taken up by either strain with a high rate. The implications regarding the recognition at the cell surface are discussed.
منابع مشابه
The siderophores of Pseudomonas fluorescens 18.1 and the importance of cyclopeptidic substructures for the recognition at the cell surface.
The structure of the pyoverdin siderophore of Pseudomonas fluorescens 18.1 was elucidated by spectroscopic methods and chemical degradation. By cross feeding studies structurally closely related pyoverdins containing a C-terminal cyclopeptidic substructure were tested regarding the mutual recognition by the producing strains. Partial recognition of foreign pyoverdins was observed.
متن کاملارزیابی توان آنتاگونیستی بیووارهای باکتری Pseudomonas fluorescens جدا شده از ریزوسفر سیب زمینی جهت کنترل Pectobacterium carotovorum subsp. atrosepticum
Representatives of fluorescent pseudomonad strains were assessed for their antagonistic activity against the blackleg of potato pathogen, Pectobacterium carotovorum subsp. atrosepticum. Tested strains belonged mainly to Pseudomonas fluorescens Biovars III, IV and V and they could produce inhibition zone on PDA medium against P. c. subsp. atrosepticum ranging from 1.5-5.5cm. Six selected strains...
متن کاملارزیابی توان آنتاگونیستی بیووارهای باکتری Pseudomonas fluorescens جدا شده از ریزوسفر سیب زمینی جهت کنترل Pectobacterium carotovorum subsp. atrosepticum
Representatives of fluorescent pseudomonad strains were assessed for their antagonistic activity against the blackleg of potato pathogen, Pectobacterium carotovorum subsp. atrosepticum. Tested strains belonged mainly to Pseudomonas fluorescens Biovars III, IV and V and they could produce inhibition zone on PDA medium against P. c. subsp. atrosepticum ranging from 1.5-5.5cm. Six selected strains...
متن کاملThe pyoverdins of Pseudomonas sp. 96-312 and 96-318.
The structures of the pyoverdins isolated from the Pseudomonas spp. 96-312 and 96-318 were elucidated by spectroscopic and degradation techniques. As observed before for Pseudomonas spp. producing pyoverdins with a C-terminal cyclopeptidic substructure, the two strains can recognize to some extent structurally different pyoverdins as long as they have also a similar cyclopeptidic C-terminus.
متن کاملNew Pyoverdin-Type Siderophores from Pseudomonas fluorescens [1]
The structures o f two new pyoverdins (GM -I and GM -II) isolated from the culture medium of Pseudomonas fluorescens have been elucidated by spectroscopic methods and degradation studies. The pyoverdins consist o f a chromophore which could be identified as (1 S)-5-amino2,3-dihydro-8,9-dihydroxy-1 H-pyrimido[l,2-a]quinoline-l-carboxylic acid substituted at the amino group with a 3-carboxypropan...
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ورودعنوان ژورنال:
- Zeitschrift fur Naturforschung. C, Journal of biosciences
دوره 57 1-2 شماره
صفحات -
تاریخ انتشار 2002