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University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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Subject: Plant Biochemistry × Author: ARUNA, P. M. × Start date: 1961 × Type: Thesis × Thesis Type: M.Sc ×
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    STUDY ON ANTIFUNGAL ACTIVITY OF SOIL MICROBIAL METABOLITES AGAINST Fusarium solani AND Sclerotium rolfsii
    (2023-01-17) ARUNA, P. M.; MOHAN CHAVAN
    Research to develop biological control agents against the plant pathogens to replace the synthetic agrochemicals gained the considerable attention. The present study was conducted to assess the potential antagonistic bacteria against fungal pathogens from three different regions of Karnataka viz. Yana caves, Dandeli and GKVK campus Bengaluru. Sixty isolates were screened against Fusarium solani and Sclerotium rolfsii, among them one showed antagonism against Sclerotium rolfsii and three were showing antagonism against Fusarium solani. Further, morphological, biochemical and molecular characterization revealed that Bacillus subtilis strain OTG009 showed inhibition (55.55 %) against Sclerotium rolfsii, similarly Bacillus subtilis strain JC43, Bacillus subtilis strain P and Pseudomonas aeruginosa DSM 50071 showed inhibition (45.55 %, 43.33 %, 63.33 % respectively) against Fusarium solani. The isolates found that were able to produce siderophores(chelating agents).However, only Pseudomonas aeruginosa able to produce HCN which helps in defense against plant pathogens. This established the basis for further investigation. Spectrophotometer analysis showed that the extract showed maximum absorption from 200 nm to 400 nm indicated the present of active compounds. The qualitative analysis of compounds present in the ethyl acetate extract using GCMS revealed the presence of antimicrobial, antifungal, antibacterial compounds. Pseudomonas aeruginosa was effectively inhibiting the pathogen growth in vitro. These beneficial soil microbes can be used for the control of plant fungal diseases caused by Fusarium solani and Sclerotium rolfsii.