tailieunhanh - Plant growth promoting properties of rhizobacteria isolated from wheat and pea grown in loamy sand soil

Microbes are important catalysts to regulate functional properties of terrestrial ecosystems. In this study, rhizosphere and phyllosphere bacteria were isolated from wheat and peas and examined for their plant growth promoting properties. The effects of bacterial inoculants on the growth of peas and wheat were studied in a series of pot experiments using loamy sand soil. | Turk J Biol 32 (2008) 9-15 © TÜB‹TAK Plant Growth Promoting Properties of Rhizobacteria Isolated from Wheat and Pea Grown in Loamy Sand Soil Dilfuza EGAMBERDIEVA Department of Biotechnology and Microbiology, National University of Uzbekistan, Vuzgorodok, 100174 Tashkent, UZBEKISTAN Received: Abstract: Microbes are important catalysts to regulate functional properties of terrestrial ecosystems. In this study, rhizosphere and phyllosphere bacteria were isolated from wheat and peas and examined for their plant growth promoting properties. The effects of bacterial inoculants on the growth of peas and wheat were studied in a series of pot experiments using loamy sand soil. The results showed that the colonisation of bacteria was higher in the rhizosphere as compared to the phyllosphere of both plants. Bacterial strains were identified as Pseudomonas, Bacillus, Kocuria, and Microbacterium, and Cellulomonas species. The response of wheat and peas when inoculated with bacteria was significantly positive over the control. After inoculation with effective bacterial strains, the root and shoot growth, and nodulation of peas were increased. However, the strains stimulated only the roots of wheat. Independent of the origin (rhizosphere vs. phyllosphere), bacterial strains produced indole-3 acetic acid (IAA), which most probably accounted for the overall synergistic effect on growth of peas and wheat. Key Words: Rhizosphere, phyllosphere, auxin, wheat, peas T›nl› Topraklarda Yetiflen Bu¤day ve Bezelye Bitkisinden ‹zole Edilen Rhizobakterilerin Bitki Büyüme Uyar›c› Özellikleri Özet: Karasal ekosistemlerin fonksiyonel özelliklerini düzenlemede mikroplar önemli katalistlerdir. Bu çal›flmada bu¤day ve bezelyeden izole edilen rhizosfer ve phyllosfer bakterileri bitki büyümesini uyar›c› özellikleri çal›fl›lm›flt›r. Bu¤day ve bezleyelere bakteri ›nokulasyonlar›n›n etkileri bir seri saks› denemesinde t›nl› kumlu topraklarda çal›fl›lm›flt›r. Sonuçlara gore her bitki .

• Sinh học
• Plant growth promoting properties
• Rhizobacteria isolated
• Loamy sand soil
• Terrestrial ecosystems
• Cellulomonas species
• Plant growth promoting bacteria
• Indole acetic acid
• Nitrogen fixation
• Soil chemical properties
• Phosphate solubilisation
• Soybean [Glycine max (L ) Merrill]
• Screening of Bradyrhizobial isolates
• In vitro conditions
• Organic or inorganic ions
• Turkish Journal of Agriculture and Forestry
• Tạp chí Nông Lâm nghiệp
• M longifolia L
• Endopyhytic bacteria
• ACC deaminase
• Phosphate solubilization
• Organic acids
• Indole 3 acetic acid
• Pot trials
• Plant growth–promoting rhizobacteria
• Pythium debaryanum
• Rhizoctonia solani
• Sclerotium rolfsii
• Trichoderma harzianum
• Trichoderma viride
• Pseudomonas fluorescence
• Soil borne pathogens
• BMC Genomics
• Comparative genomics
• Soil microbiology
• Whole genome sequencing
• Serratia marcescens