title: Characteristics and biodiversity of endophytic phosphorus- and potassium-solubilizing bacteria in Moso Bamboo (Phyllostachys edulis).
abstract: Endophytic phosphorus- and potassium-solubilizing bacteria were screened from the root, rhizome, stem, and leaves of Moso Bamboo, and their diversity was analyzed using their 16S rDNA sequences. Twenty endophytic phosphorus and potassium-solubilizing bacteria were screened from 82 bamboo plants, among which the CT-B09-2, WYS-A01-1 and JL-B06 had higher activities in decomposing organophosphates. The three species showed a decomposition diameter/colony diameter (D/d) of 5.05, 4.19 and 2.95, respectively, and a solubilizing activity of 81.77 mg/L, 77.85 mg/L and 63.69 mg/L, respectively. JL-B06, WYS-A01-1 and CT-B09-2 had higher activities in decomposing inorganic phosphorus, with a decomposition diameter/colony diameter (D/d) of 2.34, 2.12 and 1.82, respectively, and a solubilizing activity of 30.58 mg/L, 38.89 mg/L and 48.35 mg/L, respectively. CT-B21, WYS-A03-1 and JL-B06 had higher activities in decomposing potassium, with a decomposition diameter/colony diameter (D/d) of 3.37, 4.84 and 4.33, respectively, and a solubilizing activity of 2.81 mg/L, 2.54 mg/L and 2.46 mg/L, respectively. The 16S rDNA sequence analysis showed that the 20 phosphorus- and potassium-solubilizing bacteria belong to 14 species from 10 genera, and mainly consist of Alcaligenes spp., Enterobacter spp. and Bacillus spp. Our results demonstrate the abundant diversity of endophytic phosphorus- and potassiumsolubilizing bacteria in Moso Bamboo.
authors.affiliation: College of Forestry, Fujian Agriculture and Forestry University , Fuzhou 350002, Fujian , China.
authors.forename: Zong-Sheng
authors.initials: ZS
authors.lastname: Yuan
authors.affiliation: Mycological Research Center of Fujian Agriculture and Forestry University , Fuzhou 350002, Fujian , China.
authors.forename: Fang
authors.initials: F
authors.lastname: Liu
authors.affiliation: College of Forestry, Fujian Agriculture and Forestry University , Fuzhou 350002, Fujian , China.
authors.forename: Guo-Fang
authors.initials: GF
authors.lastname: Zhang
mesh_terms: D001419:Bacteria / Q000145:classification* / Q000378:metabolism; D044822:Biodiversity; D060026:Endophytes / Q000145:classification / Q000378:metabolism; D010758:Phosphorus / Q000378:metabolism*; D010802:Phylogeny; D006109:Poaceae / Q000382:microbiology*; D011188:Potassium / Q000378:metabolism*; D012336:RNA, Ribosomal, 16S / Q000235:genetics
chemical_list: D012336:RNA, Ribosomal, 16S; D010758:Phosphorus; D011188:Potassium
keywords: Phyllostachys edulis; biodiversity; endophytic bacteria; phosphorus- and potassium-solubilization