The Role of Endophytic Microorganisms of Medicinal Plants in the Adaptation of Host Plants
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2015, Vol 11, Issue 3
Abstract
Cultures of microorganisms were isolated from endosphere of Lake Baikal littoral zone plants: [i]Veronica[/i] [i]chamaedrys [/i]L., [i]Alchemilla subscrenata[/i] Buser, [i]Achillea asiatica[/i] Serg., [i]Taraxacum officinale[/i] Wigg., [i]Plantago major[/i] L. Morphology and biochemical properties of isolated bacteria were studied. For the majority of the endophytic bacterial cultures cellulolitic and proteolytic activity has been shown, which necessary for the effective colonization of plant tissue. For many cultures revealed ability in varying degrees to form a biofilm to improve survival in a vegetative organism. Their potencial role in adaptation of plant-hosts under conditions of climat Baikal region was shown. In particular, 9 of cultures demonstrated ability to act as nitrogen retainer. The vast majority of bacterial cultures did not have phytotoxicity or demonstrated its low level, reflecting and minimum negative effects of them on plant. Moreover, culture with encryption P3, isolated from [i]Plantago major[/i] in August, showed a stimulatory effect in experiments on phytotoxicity. This same culture possessed the highest ability to secrete sugars as at +26°С and at +4°С.
Authors and Affiliations
M. Zhivetev, A. Turskaya, T. Putilina, Ju. Markova, I. Graskova, V. Voinikov
Keywords
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