Isolation and Molecular Characterization of Phosphate Solubilizing Rhizoplane Bacteria from Wheat (Triticum Spp)
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Isolation and Characterization of Potential Phosphate Solubilizing Bacteria from Wheat (Triticum spp) of Bangladesh Introduction Wheat (Triticum spp.) is a cereal grain, originally from the Levant region of the Near East and Ethiopian Highlands, but now cultivated worldwide. In 2010 world production of wheat was 651 million tons, making it the third most-produced cereal after maize (844 million tons) and rice (672 million tons)(FAO,2010). In Bangladesh, wheat cultivation area and production were 388 hectares and 844 M. tons, respectively in the year 2007-2008 (BBS, 2008). The recommended doses of fertilizer for wheat are 100-120 Kg N ha-1, 50-60 Kg P2O5 ha-1 and 50-60 Kg K2O ha-1.
Phosphorus is one of the essential mineral macronutrients, which is required for maximizing the yield of crops, a part of several key plant structural compounds and as a catalytic compound involved in the conversion of numerous key biochemical reactions in plants. P is a vital component of DNA, the genetic "memory unit" of all living organisms, also a component of RNA, the compound that reads the DNA genetic code to build proteins and other compounds essential for plant structure, seed yield, and genetic transfer, a vital component of ATP, the "energy unit" of plants, which forms during photosynthesis and processes from the beginning of seedling growth through the formation of grain and maturity (Griffith, 2009).
However, a large portion of soluble inorganic phosphate applied to soil as chemical fertilizer is rapidly immobilized soon after application and becomes unavailable to plants (Dey, 1988; Yadav and Dadarwal, 1997). Plant root-associated phosphate solubilizing bacteria (PSB) have been considered as one of the possible alternatives for inorganic phosphate fertilizers for promoting plant growth and yield (deFreitas et al., 1997; Rodrı´guez and Fraga, 1999; Richardson, 2001; Vessey, 2003; Thakuria et al., 2004). Seed or soil inoculation with PSB is
TITLE:
Isolation and Characterization of Potential Phosphate Solubilizing Bacteria from Wheat (Triticum spp) of Bangladesh Introduction Wheat (Triticum spp.) is a cereal grain, originally from the Levant region of the Near East and Ethiopian Highlands, but now cultivated worldwide. In 2010 world production of wheat was 651 million tons, making it the third most-produced cereal after maize (844 million tons) and rice (672 million tons)(FAO,2010). In Bangladesh, wheat cultivation area and production were 388 hectares and 844 M. tons, respectively in the year 2007-2008 (BBS, 2008). The recommended doses of fertilizer for wheat are 100-120 Kg N ha-1, 50-60 Kg P2O5 ha-1 and 50-60 Kg K2O ha-1.
Phosphorus is one of the essential mineral macronutrients, which is required for maximizing the yield of crops, a part of several key plant structural compounds and as a catalytic compound involved in the conversion of numerous key biochemical reactions in plants. P is a vital component of DNA, the genetic "memory unit" of all living organisms, also a component of RNA, the compound that reads the DNA genetic code to build proteins and other compounds essential for plant structure, seed yield, and genetic transfer, a vital component of ATP, the "energy unit" of plants, which forms during photosynthesis and processes from the beginning of seedling growth through the formation of grain and maturity (Griffith, 2009).
However, a large portion of soluble inorganic phosphate applied to soil as chemical fertilizer is rapidly immobilized soon after application and becomes unavailable to plants (Dey, 1988; Yadav and Dadarwal, 1997). Plant root-associated phosphate solubilizing bacteria (PSB) have been considered as one of the possible alternatives for inorganic phosphate fertilizers for promoting plant growth and yield (deFreitas et al., 1997; Rodrı´guez and Fraga, 1999; Richardson, 2001; Vessey, 2003; Thakuria et al., 2004). Seed or soil inoculation with PSB is
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