Kazan Federal University Digital Repository

Stress response in Pectobacterium atrosepticum SCRI1043 under starvation conditions: Adaptive reactions at a low population density

Show simple item record

dc.contributor.author Petrova O.
dc.contributor.author Gorshkov V.
dc.contributor.author Daminova A.
dc.contributor.author Ageeva M.
dc.contributor.author Moleleki L.
dc.contributor.author Gogolev Y.
dc.date.accessioned 2018-09-18T20:10:15Z
dc.date.available 2018-09-18T20:10:15Z
dc.date.issued 2014
dc.identifier.issn 0923-2508
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/137225
dc.description.abstract The adaptive reactions of plant pathogenic bacterium Pectobacterium atrosepticum SCRI1043 under starvation conditions were studied. The main emphasis was given to the peculiarities of stress responses depending on the bacterial population densities. When bacteria were subjected to starvation at high population densities (107-109CFUml-1), their adaptive reactions conformed to the conventional conception of bacterial adaptation related to autolysis of part of the population, specific modification of cell ultrastructure, activation of expression of stress responsive genes and acquiring cross protection against other stress factors. In contrast, at low initial population densities (103-105CFUml-1), as described in our recent work, the cell density increased due to multiple cell division despite the absence of exogenous growth substrate. Here we present data that demonstrate that such unconventional behavior is part of a stress response, which provides increased stress tolerance while retaining virulence. Cell morphology and gene expression in high- and low-cell-density starving Pba cultures were compared. Our investigation demonstrates the existence of alternative adaptive strategies enabling pathogenic bacteria to cope with a variety of stress factors, including starvation, especially necessary when residing outside of their host. © 2013 Institut Pasteur.
dc.relation.ispartofseries Research in Microbiology
dc.subject Bacterial ultrastructure
dc.subject Cell division
dc.subject Cross-protection
dc.subject PpGpp
dc.subject RpoS
dc.subject Stringent response
dc.title Stress response in Pectobacterium atrosepticum SCRI1043 under starvation conditions: Adaptive reactions at a low population density
dc.type Article
dc.relation.ispartofseries-issue 2
dc.relation.ispartofseries-volume 165
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 119
dc.source.id SCOPUS09232508-2014-165-2-SID84896053263


Files in this item

This item appears in the following Collection(s)

  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

Show simple item record

Search DSpace


Advanced Search

Browse

My Account

Statistics