Plant growth-promoting capabilities of diazotrophs from wild gramineous crops = 야생 벼과식물 유래 질소고정세균의 식물생장촉진 관련 특성

Cited 0 time in scopus
Metadata Downloads
Title
Plant growth-promoting capabilities of diazotrophs from wild gramineous crops = 야생 벼과식물 유래 질소고정세균의 식물생장촉진 관련 특성
Author(s)
S J Lee; S E Lee; K J Seul; Seung Hwan Park; S Y Ghim
Bibliographic Citation
Korean Journal of (Applied) Microbiology & Biotechnology, vol. 34, no. 1, pp. 78-82
Publication Year
2006
Abstract
Since there could be more and rather various diazotrophs in rhizosphere of wild crops than those in rhizosphere of cultivars, some wild gramineous crops grown in Korea were collected for isolating nitrogen-fixing bacteria. Six diazotrophs were purified from their roots using nitrogen-free media. The isolated bacteria were partially identified as 4 genera by 16S rDNA sequence analysis: Stenotrophomonas sp., Bosea sp., Klebsiella sp., and Azorhizobium sp. By PCR amplification and sequence analysis, DNA fragments extracted from all isolates turned out to have an individual nifH homologous gene. Five isolates (KNUC163, KNUC165, KNUC169, KNUC170, and KNUC171) showed auxin activity and four isolates (KNUC163, KNUC166, KNUC170, and KNUC171) produced siderophores. Especially, 3 strains of S. maltophilia showed both auxin and siderophore activities. In conclusion, the isolated nitrogen-fixing bacteria might have capabilities for plant growth promotion.
Keyword
auxinnifHnitrogen-fixing bacteriaplant growth-promoting rhizobacteria (PGPR)siderophorescropplant growth
ISSN
0257-2389
Publisher
South Korea
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
Files in This Item:
  • There are no files associated with this item.


Items in OpenAccess@KRIBB are protected by copyright, with all rights reserved, unless otherwise indicated.