Sinorhizobium fredii HH103 RifR, a broad‐host‐range rhizobial strain, forms ineffective nodules with Lotus japonicus but induces nitrogen‐fixing nodules in Lotus burttii roots that are infected by intercellular entry. Here we show that HH103 Rif...
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https://www.riss.kr/link?id=O119043583
Sebastián Acosta‐Jurado ; Dulce‐Nombre Rodríguez‐Navarro ; Yasuyuki Kawaharada ; Miguel A. Rodríguez‐Carvajal ; Antonio Gil‐Serrano ; María E. Soria‐Díaz ; Francisco Pérez‐Montaño ; Juan Fernández‐Perea ; Yanbo Niu ; Cynthia Alias‐Villegas ; Irene Jiménez‐Guerrero ; Pilar Navarro‐Gómez ; Francisco Javier López‐Baena ; Simon Kelly ; Niels Sandal ; Jens Stougaard ; José E. Ruiz‐Sainz ; José‐María Vinardell
2019년
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1462-2912
1462-2920
SCIE;SCOPUS
학술저널
1718-1739 [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
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상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Sinorhizobium fredii HH103 RifR, a broad‐host‐range rhizobial strain, forms ineffective nodules with Lotus japonicus but induces nitrogen‐fixing nodules in Lotus burttii roots that are infected by intercellular entry. Here we show that HH103 Rif...
Sinorhizobium fredii HH103 RifR, a broad‐host‐range rhizobial strain, forms ineffective nodules with Lotus japonicus but induces nitrogen‐fixing nodules in Lotus burttii roots that are infected by intercellular entry. Here we show that HH103 RifR nolR or nodD2 mutants gain the ability to induce infection thread formation and to form nitrogen‐fixing nodules in L. japonicus Gifu. Microscopy studies showed that the mode of infection of L. burttii roots by the nodD2 and nolR mutants switched from intercellular entry to infection threads (ITs). In the presence of the isoflavone genistein, both mutants overproduced Nod‐factors. Transcriptomic analyses showed that, in the presence of Lotus japonicus Gifu root exudates, genes related to Nod factors production were overexpressed in both mutants in comparison to HH103 RifR. Complementation of the nodD2 and nolR mutants provoked a decrease in Nod‐factor production, the incapacity to form nitrogen‐fixing nodules with L. japonicus Gifu and restored the intercellular way of infection in L. burttii. Thus, the capacity of S. fredii HH103 RifR nodD2 and nolR mutants to infect L. burttii and L. japonicus Gifu by ITs and fix nitrogen L. japonicus Gifu might be correlated with Nod‐factor overproduction, although other bacterial symbiotic signals could also be involved.
Phototrophic marine benthic microbiomes: the ecophysiology of these biological entities