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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Role of Sinorhizobium meliloti glutaredoxins in nitrogen-fixing symbiosis

100%
Benyamina S., Alloing G., Rouhier N., Jacquot J., Puppo A., Frendo P.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
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2013
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tom 94
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nr 2
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Effect of the culturing density of the Sinorhizobium meliloti Bp on the development of lucerne (Medicago sativa L.) and nitrogenase activity

84%
Mocek-Plociniak A., Niewiadomska A., Gluchowska K.
Acta Scientiarum Polonorum. Agricultura
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2008
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tom 07
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nr 1
The authors investigated the impact of the Sinorhizobium inoculum density on the plant development of alfalfa, nodulation and nitrogenase activity. It was found that plants inoculated with a 10% inoculant (4.9 x 10⁶ CFU) were characterized by the best growth, more profuse fresh material and a very well developed root system and, additionally, they revealed higher nitrogenase activity.
3
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Localization of nitric oxide (NO) in effective and partially effective Medicago truncatula root nodules

84%
Bederska M., Borucki W.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
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2013
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tom 94
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nr 2
4

Effect of carbendazim, imazetapir and thiram on nitrogenase activity, number of microorganisms in soil and yield of hybrid lucerne [Medicago media]

67%
Niewiadomska A., Sawicka A.
Polish Journal of Environmental Studies
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2002
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tom 11
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nr 6
In field and pot experiments the effect of selected pesticides on the nitrogenase activity, num­ber of soil microorganisms, and yield of hybrid lucerne was investigated. The obtained results show that crop protection preparations applied in the experiment (seed dressing compound Funaben T and Pivot 100SL herbicide) reduced the activity of nitrogenase in the active strain of Sinorhizobium me­liloti both under conditions of pot and field experiments. In addition, the authors observed a noxious influence of the applied pesticides on nodulation, root development and yield of lucerne. Furthermore, in the first days after their application, the employed herbicide and fungicide inhibited mul­ti­pli­cation of soil microorganisms under lucerne plantations, while later they were found to stimulate their mul­ti­pli­cation.
5

Annexins - calcium- and membrane-binding proteins in the plant kingdom. Potential role in nodulation and mycorrhization in Medicago truncatula

59%
Talukdar T., Gorecka K. M., de Carvalho-Niebel F., Downie J. A., Cullimore J., Pikula S.
Acta Biochimica Polonica
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2009
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tom 56
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nr 2
199-210
 Annexins belong to a family of multi-functional membrane- and Ca2+-binding proteins. The characteristic feature of these proteins is that they can bind membrane phospholipids in a reversible, Ca2+-dependent manner. While animal annexins have been known for a long time and are fairly well characterized, their plant counterparts were discovered only in 1989, in tomato, and have not been thoroughly studied yet. In the present review, we discuss the available information about plant annexins with special emphasis on biochemical and functional properties of some of them. In addition, we propose a link between annexins and symbiosis and Nod factor signal transduction in the legume plant, Medicago truncatula. A specific calcium response, calcium spiking, is an essential component of the Nod factor signal transduction pathway in legume plants. The potential role of annexins in the generation and propagation of this calcium signal is considered in this review. M. truncatula annexin 1 (MtAnn1) is a typical member of the plant annexin family, structurally similar to other members of the family. Expression of the MtAnn1 gene is specifically induced during symbiotic associations with both Sinorhizobium meliloti and the mycorrhizal fungus Glomus intraradices. Furthermore, it has been reported that the MtAnn1 protein is preferentially localized at the nuclear periphery of rhizobial-activated cortical cells, suggesting a possible role of this annexin in the calcium response signal elicited by symbiotic signals from rhizobia and mycorrhizal fungi.
6

Pesticide side effect on the symbiotic efficiency and nitrogenase activity of Rhizobiaceae bacteria family

51%
Niewiadomska A., Klama J.
Polish Journal of Microbiology
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2005
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tom 54
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nr 1
The laboratory experiments tested the influence of selected pesticides on the symbiotic efficiency and nitrogenase activity of Rhizobium teguminosarum bv. trifolii KGL, Sinorhizobium melilotii Bp and Bradyrhizobium sp. Ornithopus B bacteria entering into symbiosis with clover, lucerne and serradella, respectively. The results obtained indicate that the pesticides used in the experiments (Funaben T seed dressing and Pivot 100SL herbicide) caused reduced nitrogenase activity in active strains tested. In addition, a toxic effect of the applied pesticides on the nodulation and root growth of the tested plants was observed.
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