N-acylanilines, herbicide-CHA chimera, and amino acid analogues as novel chemical hybridizing agents for wheat (Triticum aestivum L.)

Chakraborty, Kajal and Devakumar, C (2005) N-acylanilines, herbicide-CHA chimera, and amino acid analogues as novel chemical hybridizing agents for wheat (Triticum aestivum L.). Journal of Agricultural and Food Chemistry, 53 (20). pp. 7899-7907.

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    Abstract

    In the absence of viable alternative technology of hybrid wheat development, chemical induction of male sterility mediated technology based on chemical hybridizing agents (CHAs) holds a great potential. N-Acylaniline derivatives, namely, ethyl 4'-fluoro oxanilate (1) and ethyl 4'-trifluoromethyl oxanilate (2) containing halogen atoms in the para position of the aryl ring and substituted amide linkage (-CO-NH-) in the acyl side chain induced >98% spikelet sterility on three genotypes of wheat, namely, PBW 343, HD 2046 and HD 2733, at 1500 ppm. The active moieties were incorporated in the form of herbicide-CHA chimera and amino acid analogues using glycine and alanine as templates. The target activity was made more selective by synthesizing chimeric structure of herbicide (2,4-dichlorophenoxyacetic acid and dalapon) and the most active CHA templates, namely, 4- fluoroanilinyl and beta-ethoxycarbonyl moieties. Among herbicide-CHA chimera ethyl 2',4'-dichlorophenyl oxalate (14) induced 79.11% male sterility, whereas benzyl methyl 2-oxo-3-azaadipate (20) was the best, inducing 73.87% male sterility in HD 2733, among amino acid analogues. The CHAs were found to modify the reproductive biology to ensure cross-pollination in the cleistogamous wheat flowers, increasing the probability for the development of hybrids.

    Item Type: Article
    Uncontrolled Keywords: N-acylanilines; herbicide-CHA chimera; amino acid; chemical hybridizing agents; wheat; Triticum aestivum L.
    Subjects: Biochemistry > Bioactive compounds
    Divisions: CMFRI-Kochi > Marine Biotechnology
    Subject Area > CMFRI > CMFRI-Kochi > Marine Biotechnology
    CMFRI-Kochi > Marine Biotechnology
    Subject Area > CMFRI-Kochi > Marine Biotechnology
    Depositing User: Arun Surendran
    Date Deposited: 24 Feb 2014 09:01
    Last Modified: 10 Jul 2017 10:57
    URI: http://eprints.cmfri.org.in/id/eprint/9915

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