Diversity of bacterial endophytes in roots of Mexican husk tomato plants (Physalis ixocarpa) and their detection in the rhizosphere

被引：73

作者：

Marquez-Santacruz, H. A. ^{[1
]}

Hernandez-Leon, R. ^{[1
]}

Orozco-Mosqueda, M. C. ^{[2
]}

Velazquez-Sepulveda, I. ^{[1
]}

Santoyo, G. ^{[1
]}

机构：

[1] Univ Michoacana San Nicolas de Hidalgo Morelia, Inst Invest Quim Biol, Lab Recombinac & Diversidad Genom, Michoacan, Mexico

[2] Univ Michoacana San Nicolas de Hidalgo Morelia, Inst Invest Quim Biol, Lab Ecol Microbiana, Michoacan, Mexico

来源：

GENETICS AND MOLECULAR RESEARCH | 2010年 / 9卷 / 04期

关键词：

Endophytes; Bacterial diversity; Rhizosphere; Mexican husk tomato plants; DIFFERENT CULTIVARS; L; CANOLA; LEAVES; COTTON;

D O I：

10.4238/vol9-4gmr921

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Endophytic bacterial diversity was estimated in Mexican husk tomato plant roots by amplified rDNA restriction analysis and sequence homology comparison of the 16S rDNA genes. Sixteen operational taxonomic units from the 16S rDNA root library were identified based on sequence analysis, including the classes Gammaproteobacteria, Betaproteobacteria, Actinobacteria, and Bacilli. The predominant genera were Stenotrophomonas (21.9%), Microbacterium (17.1%), Burkholderia (14.3%), Bacillus (14.3%), and Pseudomonas (10.5%). In a 16S rDNA gene library of the same plant species' rhizosphere, only common soil bacteria, including Stenotrophomonas, Burkholderia, Bacillus, and Pseudomonas, were detected. We suggest that the endophytic bacterial diversity within the roots of Mexican husk tomato plants is a subset of the rhizosphere bacterial population, dominated by a few genera.

引用

页码：2372 / 2380

页数：9

共 32 条

[1] Effect of host genotype on indigenous bacterial endophytes of cotton (Gossypium hirsutum L.) [J].