Gibberellins-Producing Rhizobacteria Increase Endogenous Gibberellins Content and Promote Growth of Red Peppers
2005
Joo, G.J. (Kyungpook National University, Daegu, Republic of Korea) | Kim, Y.M. (Kyungpook National University, Daegu, Republic of Korea) | Kim, J.T. (Kyungpook National University, Daegu, Republic of Korea) | Rhee, I.K. (Kyungpook National University, Daegu, Republic of Korea) | Kim, J.H. (Sangju National University, Sangju, Republic of Korea) | Lee, I.J. (Kyungpook National University, Daegu, Republic of Korea), E-mail: [email protected]
The growth of red pepper plants was enhanced by treatment with the rhizobacterium, Bacillus cereus MJ-1. Red pepper shoots showed a 1.38-fold increase in fresh weight (fw) and roots showed a 1.28-fold fw gain. This plant growth-promoting rhizobacterium (PGPR) has been reported to produce gibberellins (GAs). Other GAs-producing rhizobacteria, Bacillus macroides CJ-29 and Bacillus pumilus CJ-69, also enhanced the fw of the plants. They were less effective than B. cereus MJ-1, though. The endogenous GAs content of pepper shoots inoculated with MJ-1 was also higher than in shoots inoculated with CJ-29 or CJ-69.
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