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مقالات فارسیISIکنفرانسهاژورنالها

Differences among Bacillus velezensis Strains from Biofilm Formation to Competition in Niche Determination on Plant Roots

محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 24، شماره: 4
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 45

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لینک ثابت به این مقاله:
https://civilica.com/doc/1816070

شناسه ملی سند علمی:

JR_JASTMO-24-4_004

تاریخ نمایه سازی: 22 آبان 1402

چکیده مقاله:

Biofilm formation and rhizosphere colonization of the plants are the main infrastructures for the biological control of the plant diseases. Bacteria accumulation in the protective layer, which results from their self-production of Exopolysaccharides (EPS), is called the biofilm. The formation of these complex structures originates from the multicellular behaviors of bacteria. Various elements can play a role in these mechanisms. In this study, we examined biofilm formation, root colonization, and salt tolerance to four concentrations of NaCl in the strains of Bacillus velezensis (Q۱۲, US۱, and UR۱). The results showed that the biofilm strength plays an important role in the efficiency of tomato root colonization. Furthermore, UR۱ that had defects in producing the surfactin, iturin, and fengycin using Ultrahigh-Performance Liquid Chromatography-High Resolution Electrospray Ionization Mass Spectrometry (UHPLC-HRESIMS), was incapable of tolerance to salinity, biofilm formation, competition, and rhizosphere colonization. Confocal Laser Scanning Microscopy (CLSM) studies showed that strains US۱ and Q۱۲ differed in the biofilm strength, the position of the bacteria that are located laterally, polar, or both, and root colonization. Q۱۲ was introduced as the best strain in all these experiments. Also, based on the findings of this and previous studies, the possibility to create the subpopulations influenced by genetic diversity in Bacillus velezensis strains during biofilm formation is suggested.

کلیدواژه ها:

Electroporation ، GFP ، Rhizobacteria ، Root colonization.

نویسندگان

A. Lagzian

Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Islamic Republic of Iran.

R. Saberi-Riseh

Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Islamic Republic of Iran.

S. Sarikhan

Molecular Bank, Iranian Biological Resource Center (IBRC), ACECR, Tehran, Islamic Republic of Iran.

M. Moradzadeh-Eskandari

Department of Plant Protection Research, Khorasan Razavi Agricultural and Natural Resources Research and Education Center (AREEO), Mashhad, Islamic Republic of Iran.

P. Khodaygan

Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Islamic Republic of Iran.

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