Diversity and distribution of rhizospheric bacteria associated with Devil's cotton (Abroma augusta L.) along with alterations induced by the abiotic environment
Recent research on the pharmacological aspects of Devil's cotton (Abroma augusta L.) plant has increased its impetus, notwithstanding its usage by the traditional practitioners, in face of its over-exploitation. We attempted a study of the association ecology of pedospheric bacteria associated with its rhizosphere. A total of 9 (nine) bacteria were isolated from rhizospheric soil collected from 8 natural locations of the Brahmaputra valley, distributed in 4 districts of Assam, India. The association between rhizospheric bacteria and fungal biota (including endomycorrhizae and non-mycorrhizal fungi) with abiotic soil properties can be exclusively advocated for a broader utilization as an ecological indicator for the conservation of target plant species as discussed in the present paper.
2. Mendes R, Garbeva P, Raaijmakers JM. The rhizosphere microbiome: Significance of plant beneficial, plant pathogenic, and human pathogenic microorganisms. FEMS Microbiol Rev. 2013; 37: 634-663.
3. Philippot L, Raaijmakers JM, Lemanceau P, van der Putten WH. Going back to the roots: the microbial ecology of the rhizosphere. Nat Rev Microbiol. 2013; 11: 789-799.
4. Berendsen RL, Pieterse CMJ, Bakker PAHM. The rhizosphere microbiome and plant health. Trends Plant Sci. 2012; 17: 478-486.
5. Bulgarelli D, Schlaeppi K, Spaepen S, Ver Loren van Themaat E, Schulze-Lefert P. Structure and functions of the bacterial microbiota of plants. Annu Rev Plant Biol. 2013; 64: 807-838.
6. Joseph SJ, Hugenholtz P, Sangwan P, Osborne CA, Janssen PH. Laboratory cultivation of widespread and previously uncultured soil bacteria. Appl Environ Microbiol. 2003; 69: 7210-7215.
7. Davis KE, Joseph SJ, Janssen PH. Effects of growth medium, inoculum size, and incubation time on culturability and isolation of soil bacteria. Appl Env Microbiol. 2005; 71: 826-834.
8. Patel DK, Dhanabal SP. Determination of bioanalytical parameters for the standardization of Abroma augusta. J Acute Dis. 2013; 2(4): 292-295.
9. Parkash V, Saikia AJ, Bora D. Locational variability of physico-chemical properties of rhizospheric soil and myco-biota associated with Abroma augusta L. Adv Biores. 2014; 5(3): 156-165.
10. Parkash V, Saikia AJ. Habitational abiotic environmental factors alter arbuscular mycorrhizal composition, species richness and diversity index in Abroma augusta L. (Malvaceae) rhizosphere. Plant Pathol Quarant. 2015; 5(2): 98-120.
11. Das S, Datta R, Nandy S. Phytochemical screening and evaluation of anti-inflammatory activity of methanolic extract of Abroma augusta Linn. Asian Pac J Trop Dis. 2012; 2(S1): 114-117.
12. Anonymous. The Wealth of India. NISCAIR Press Publisher, New Delhi, 2006.
13. Gupta B, Nayak S, Solanki S. Abroma augusta Linn.: a review. Pharmacia Sinica. 2011; 2(4): 253-26.
14. Akerele O. Nature’s medicinal bounty: don’t throw it away. 14, World Health Forum, WHO, Geneva, 1993: 390-395.
15. Strobel G, Daisy B, Castillo U, Harper J. Natural products from endophytic microorganisms J Nat Prod. 2004; 67(2): 257-268.
16. Das H. Assam (state, India). Encyclopædia Britannica. http://www.brittannica.com/EB checked/topic/39101/Assam. 2014 (Accessed on April, 2014).
17. Allen SE. Chemical analysis of ecological materials. Wiley & Sons, New York, 1974.
18. Walkley A, Black IA. An examination of the Degtjareff method for determining organic carbon in soils: effect of variations in digestion conditions and of inorganic soil constituents. Soil Sci. 1934; 63: 251-263.
19. Warcup JH. The soil pate method for isolation of fungi from soil. Nature. 1950; 166: 117-118.
20. Waksman SA. Principles of soil microbiology, Williams and Wilkins Co., Baltimore, Md, 1927: 897.
21. Brenner DJ, Krieg NR, Staley JT. (eds.) Bergey's Manual of Systematic Bacteriology, New York, NY: Springer, 1984: 284-289.
22. Curtis JT, McIntosh RP. The interrelations of certain analytic and synthetic phytosociological characters. Ecology. 1950; 31: 434-455.
23. Parkash V. Utilization of vesicular arbuscular mycorrhizal diversity for the quality stock production of some useful forest plant/s species of Nongkhyllem Reserve forest, Nongpoh, Meghalaya, India. Project Completion Report (RFRI-12/2008-09/SFM). Rain Forest Research Institute, Jorhat, Assam, India, 2012.
24. Strobel GA. Endophytes as source of bioactive products. Microb Infect. 2003; 5(6): 535-544.
25. Herbert D, Elsworth R, Telling RC. The continuous culture of bacteria; a theoretical and experimental study. J Gen Microbiol. 1956; 14: 601-622.
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