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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: SHANMUKHAPPA, H. AMASI. × End date: 2009 × Start date: 2005 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of exogenous Lipopolysaccharides (LPS) of different strains of Rhizobium on nodulation in chickpea (Cicer arietinum L.)
    (University of Agricultural Sciences GKVK, Bangalore, 2009-09-17) SHANMUKHAPPA, H. AMASI.; Uma, S. Podder.
    The present investigation was carried out to study the effect of exogenous Lipopolysaccharides (LPS) of different strains of Rhizobium on nodulation in chickpea (Cicer arietinum L.). The lectin was isolated from chickpea seed and root to see the effect on Lipopolysaccharides (LPS) which were isolated from four chickpea specific Rhizobium strains namely IC-59, IC-1148, IC-2091 and IC-149 and one non specific Rhizobium strain P-132. The strain specific lipopolysaccharides of specific strains of Rhizobium inhibited lectin induced agglutination of Rhizobium specific to chickpea. And agglutination was observed higher in case of seed lectin than that of root lectin, as there was no agglutination with non specific strain so no inhibition of lectin was observed. This was also supported by the binding study data that chickpea root lectin binds more strongly to homologous Rhizobium than seed lectin. So that higher concentration is needed for replacement of lectin from Rhizobium. Number of lectin binding sites per Rhizobium is three to four times more with respect to chickpea specific strains as compared to non specific strain. Nodulation experiment showed all the chickpea specific Rhizobium strains formed nodules in in vitro experiment whereas non specific strain does not form any nodules. This follows the dictum all or none phenomenon. In other words, nonspecific Rhizobium does not inhibit agglutination and nodulation upon addition of exogenous LPS