Sinorhizobium meliloti associated with Medicago sativa and Melilotus spp. in arid saline soils in Xinjiang, China.
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چکیده
منابع مشابه
Mixed Nodule Infection in Sinorhizobium meliloti–Medicago sativa Symbiosis Suggest the Presence of Cheating Behavior
In the symbiosis between rhizobia and legumes, host plants can form symbiotic root nodules with multiple rhizobial strains, potentially showing different symbiotic performances in nitrogen fixation. Here, we investigated the presence of mixed nodules, containing rhizobia with different degrees of mutualisms, and evaluate their relative fitness in the Sinorhizobium meliloti-Medicago sativa model...
متن کاملEffect of Cyanophycin Metabolism in Recombinant Sinorhizobium (Ensifer) meliloti 1021 on the Symbiosis with Alfalfa (Medicago sativa)
Yasser Abd-El-Karem1, Rudolf Reichelt2, Martin Krehenbrink3 and Alexander Steinbüchel1,4* 1Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität, Münster, Germany 2Institut für Medizinische Physik und Biophysik, Westfälische Wilhelms-Universität, Münster, Germany 3Cysal GmbH, Münster, Germany 4Environmental Sciences Department, King Abdulaziz University, Je...
متن کاملN-deacetylation of Sinorhizobium meliloti Nod factors increases their stability in the Medicago sativa rhizosphere and decreases their biological activity.
Nod factors excreted by rhizobia are signal molecules that consist of a chitin oligomer backbone linked with a fatty acid at the nonreducing end. Modifications of the Nod factor structures influence their stability in the rhizosphere and their biological activity. To test the function of N-acetyl groups in Nod factors, NodSm-IV(C16:2,S) from Sinorhizobium meliloti was enzymatically N-deacetylat...
متن کاملGene expression of Medicago sativa inoculated with Sinorhizobium meliloti as modulated by the xenobiotics cadmium and fluoranthene.
Alfalfa plants (Medicago sativa cv. Europe) inoculated with Sinorhizobium meliloti 2011 (formerly Rhizobium meliloti, de Lajudie et al., 1994) were cultivated for 14 days under standardized growth conditions in mineral medium with addition of the heavy metal cadmium or the polycyclic aromatic hydrocarbon fluoranthene. These xenobiotics significantly reduced the numbers of root nodules before an...
متن کاملNodulation by Sinorhizobium meliloti originated from a mining soil alleviates Cd toxicity and increases Cd-phytoextraction in Medicago sativa L.
Besides their role in nitrogen supply to the host plants as a result of symbiotic N fixation, the association between legumes and Rhizobium could be useful for the rehabilitation of metal-contaminated soils by phytoextraction. A major limitation presents the metal-sensitivity of the bacterial strains. The aim of this work was to explore the usefulness of Sinorhizobium meliloti originated from a...
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ژورنال
عنوان ژورنال: International Journal of Systematic and Evolutionary Microbiology
سال: 2000
ISSN: 1466-5026,1466-5034
DOI: 10.1099/00207713-50-5-1887