Organisation Internationale pour le Bambou et le Rotin

Organisation Internationale pour le Bambou et le Rotin

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CHARACTERISTICS AND BIODIVERSITY OF ENDOPHYTIC PHOSPHORUS- AND POTASSIUM-SOLUBILIZING BACTERIA IN MOSO BAMBOO (PHYLLOSTACHYS EDULIS)

Articles

Revue/Conférence:

ACTA BIOLOGICA HUNGARICA

Language:

English

Auteur:

Yuan ZongSheng; Liu Fang

Experts:

Zhang GuoFang

Année:

2015

Volume:

66

Numéro:

4

Pages:

449-459

Mots-clés:

Phyllostachys edulis; endophytic bacteria; phosphorus- and potassium-solubilization; biodiversity

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 potassium-solubilizing bacteria in Moso Bamboo.