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Xa Thi Le
Nghia Khoi Nguyen


The aim of this study was to survey and evaluate some plant beneficial functions of fifteen indigenous microorganism communities (IMOC) collected from different cropping systems within Soc Trang province such as nitrogen fixation, phosphate solubilization, IAA synthesis and antagonistic efficacy. Nitrogen fixation, phosphate solubility and IAA synthesis capacity of IMOs were determined by nitroprusside, molybdate and Salkowski reagent method, respectively.
Fusarium oxysporum and Rhizoctonia solani were acted as plant pathogenic fungi and used to investigate antagonistic capacity of 15 IMOCs against these two pathogenic fungi under the laboratory condition. The results showed that all 15 surveyed IMOCs were able to fix biologically nitrogen from the air, to solubilize phosphate and to synthesize IAA with an extent varied between0.11 and 6.41 mg/L NH+ 4 ., between 347 and 2011 mg/L P2O5 and between 9.23 and 56.58 mg/L IAA, respectively. In addition, all 15 surveyed IMOCs were found to have a very high potential in bio-control against two model plant pathogenic fungi, with  an extent of antagonistic efficacy ranged from 34.63% to 85.46% for F. oxysporum and from 52.96% to 92.59% for R. solani. In conclusion, the finding results of this study imposed that all 15 surveyed IMOCs possessed many plant beneficial functions and thus they can be exploited for plants as one of microbial fertilizer sources.


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Le, X. and Nguyen, N. (2020) “SURVEYING SOME PLANT BENEFICIAL FUNCTIONS OF SOME INDIGENOUS MICROORGANISM COMMUNITIES FROM DIFFERENT CROPPING SYSTEMS IN SOC TRANG PROVINCE”, The Scientific Journal of Tra Vinh University, 1(3), pp. 55-65. Available at: (Accessed: 16April2021).


[1] Ahmad, F., Ahmad, I. and Khan, M.S., 2005. Indole
acetic acid production by the indigenous isolates
of Azotobacter and fluorescent Pseudomonas in the
presence and absence of tryptophan. Turk. J. of Biol., 29(1): 29-34.
[2] Ahmad, F., Ahmad, I. and Khan, M.S., 2008. Screening of free-living rhizospheric bacteria for their multiple plant growth promoting activities. Microbiol.
Res., 163(2): 173-181.
[3] Brick, J.M., Bostock, R.M., and Silverstone, S.E.,
1991. Rapid insitu assay for indole acetic acid production by bacteria immobilized on nitrocellulose
membrane. Appl. Environ. Microbiol. 57, 535–538.
[4] Chiemela, F.A., Serafin, L.N., Ricardo, L.I., Joseph,
L.N., 2013. Application of indigenous microorganisms (IMO) for bio-conversion of agricultural waste.
International Journal of Science and Research (IJSR)
ISSN (Online): 2319-7064.
[5] Dar, W.A., Beig, M.A., Ganie, S.A., Bhat, J.A.,
Shabir-u-Rehman and Razvi, S.M., 2013, In vitro
study of fungicides and biocontrol agents against
Fusarium oxysporum f.sp. pini causing root rot of
Western Himalayan fir (Abies pindrow). Academin
Journal: Scientific Research and Essays. Vol . 8(30):
[6] Davis, J.B., Coty, V.T. and Stanley, J.P., 1964. Atmospheric nitrogen fixation by methane oxidizing
bacteria. Journal of Bacteriology. 88:468-472.
[7] Duffy, B. K., and Weller, D.M., 1995. Use of Gaeumannomyces graminis var. graminis alone and in
combination with fluorescent Pseudomonas spp. to
suppress take-all of wheat. Plant Dis. 79: 907–911.
[8] Ghai S., Sood, S.S. and Jain, R.K., 2007. Antagonistic and antimicrobial activities of some bacterial
isolates collected from soil samples. Indian Journal
of Microbiology 47:77–80.
[9] Herva’s, A., Landa, B., Datnoff, L.E. and Jime’nezDı’az, R.M., 1998. Effects of Commercial and Indigenous Microorganisms on Fusarium Wilt Development in Chickpea. Biological Control 13:
[10] Hillel, D., 2007. Soil in the Environment, 1st Edition
crucible of terrestrial life
[11] Huy, N.D., Nguyen P.Q., Hong N.T.T., Giang H.,
Vien N.V. and Canh N.T., 2017. Isolation and evaluation of antagonistic ability of Trichoderma asperellum against soil borne plant pathogen. Vietnam J.
Agri. Sci. 15(12): 1593-1640.
[12] Keeney and Nelson, 1982. Method in applied Soil microbiology and biochemistry. Edited by Kassem Alef
and Paolo Nannipieri. Harcourt Brace and Company,
[13] Koche, D., Gade, R.M. and Deshmukh, A.G., 2013.
Antifungal activity of secondary metabolites produced by Pseudomonas Fluorescens. The bioscan
8(2): 723-726.
[14] Koon-Hui, W., M. Duponte and K. Chang, 2013.
Use of Korean Natural Farming for vegetable crop
production in Hawai’i. Hanai’ai/The Food Provider.
[15] Krishnaraj, P.U. and Dahale, S., 2014. Mineral phosphate solubilization: concepts and prospects in sustainable agriculture. Proc Indian Natn Sci Acad 80
(2) pp. 389-405.
[16] Kumar, B.L. and Gopal D.V.R, 2015. Effective role
of indigenous microorganism for sustainable enviroment. Biotech 5: 867-876.
[17] Kyu, C.H and Koyama A., 1997. Korean nature farming. Indigenous microorganisms and vital power of
crop/livestock. Korean Nature Farming Association
Publisher. 173 pages. (Special issue on Agriculture):
[18] Lin, Q.M., Wang, H., Zhao, X.R., and Zhao, Z.J.,
2001. The solubilizing ability of some bacteria and
fungi and its mechanisms. Microbiol. China 2001, 28,
[19] Mazumdar, A. and Deka, M., 2013. Isolation of free
living nitrogen fixing bacteria from crude oil contaminated soil. International Journal of Bio-Technology
and Research. Vol. 3: 69-76.
[20] Mbouobda, H.D., Fotso, Djeuani C.A., Fail K. and
Omokolo N D., 2013. Impact of effective and indigenous microorganisms manures on Colocassia esculenta and enzymes activities. African Journal of
Agricultural Research. Vol. 8(12), pp.1086-1092.
[21] Pham Tien Dung and Y ka Nin H’ Dok. 2009. Microbial organic fertilizer application for safe coffee
production at Daklak, Vietnam. International Society
for Southeast Asian Agricultural Sciences. 15(1): 22-
[22] Reddy, R., 2011. Cho’s global natural farming. South
Asia Rural Reconstruction Association.
[23] Robertson, G.P. and Groffman, P.M., 2015. Nitrogen
transformations. In: E. A. Paul, (Ed.). Soil microbiology, ecology and biochemistry. Fourth edition.
Academic Press, Burlington, Massachusetts, USA.
pp. 421-446
[24] Robles-Yerena L., Rodríguez-Villarreal, R.A.,
Ortega-Amaro, M.A., Fraire-elázquez, S. Simpson,
J., Rodríguez-Guerra, R. and Jiménez-Bremont, J.F.,
2010. Characterization of a new fungal antagonist of
Phytophthora capsici. Scientia Horticulturae. 125(3):
[25] Saikrithika, S., Krishnaswamy V.G. and Sujatha B.,
2016. A Study on Isolation of Phosphate Solubilizing Bacterial (PSB) Strain fromVermicomposted
Soil and Their Phosphate Solubilizing Abilities. International Journal of Advanced Biotechnology and
Research (IJBR) ISSN 0976-2612. 7(2): 526-535.
[26] Sekhar, M.S., and V.R.S. Gopal, 2013. Studies on indigenous microorganisms (IMOs) increasing growth
of leaves germination, chlorophyll content and differentiation between IMOs and chemical fertilizers in
various crop plants. International Journal of Emerging Technologies in Computational and Applied Sciences (IJETCAS) 4(3): 313-318.
[27] Smita M., and Goyal, D., 2017. Isolation and characterization of free-living nitrogen fixing bacteria
from alkaline soils. International Journal of Scientific World, 5(1): 18-22.
[28] Stanojkovic-Sebi ´ c, A., Pavlovi ´ c, S., Starovi ´ c, M., ´
Pivic, R., Dini ´ c1, Z., Lep ´ sanovi ˇ c, Z. and Jo ´ si ˇ c, ´
D., 2017. Antagonistic activity of indigenous pseudomonas isolates against Fusarium species isolated
from anise. Scientific Papers. Series B, Horticulture.
LXI: 413-416.
[29] Sumathi T., A. Janardhan, A. Srilakhmi, D.V.R Sai
Gopal and Narasimha, 2012. Impact of indigenous
microoganisms on soil microbial and enzyme activities. Archives of Applied Science Research 4 (2):
[30] Tam, H.T, Diep, C.N., Chau D.T.M., 2016. Isolation
and identification phosphate-solubilizing fungi from
ferralsols of tithonia (tithonia diversifolia (hamsl.)
gray) in daknong and daklak province(s), Vietnam.
World Journal of Pharmacy and Pharmaceutical Sciences. 5(9): 325-341.
[31] Thavasi, R., Jayalaxmi, S., Balasubramanian, T., and
Banat, I.M., 2006. Biodegradation of crude oil by nitrogen fixing marine bacteria Azotobacter chroococcum. Research journal of microbial.5:401-40.
[32] Toppo, S.R. and Naik, U.C., 2015. Isolation and
characterization of bacterial antagonist to plant
pathogenic fungi (Fusarium spp.) from agro based
area of Bilaspur. International Journal of Research
Studies in Biosciences. (Published Special Issues)
ISSN (Online): 6-14.
[33] Vincent, J.M., 1947. Distortion of fungal hyphae in
the presence of certain inhibitors. Nature 159: 850-
[34] Walpola, B.C. and Yoon, M.H., 2013. Isolation and
characterization of phosphate solubilizing. African
journal of microbiology research 7: 266-275.
[35] Xa, L.T. and Nghia N.K., 2019. Microbial diversity of
indigenous microorganism communities from different agri-ecosystems in Soc Trang province, Vietnam.
The International Conference of Ho Chi Minh City
Open University 2019: Research and Application in
Biotechnology. Proceeding (abstract book) p28.
[36] Xa, L.T., Thao, N.T.P. and Nghia N.K., 2018. Phosphate solubilization, indole-3-acetic acid synthesis
and nitrogen fixation of various indigenous microorganisms communities from different agri-ecosystem
habitats. Scientific Journal of Cantho University,
Vietnam. 54 (special issue on Agriculture): 39-48.
[37] Yuliar, S., Supriyati, D. and Rahmansyah, M., 2013.
Biodiversity of endophytic bacteria and their antagonistic activity to rhizoctonia solaniand Fusarium
oxysporum. Global journal of Biology, Agriculture &
Health Sciences, 2(4): 111-118.