A NEW MANNOSE BINDING INSECTICIDAL LECTIN ISOLATED FROM SEEDS OF ANNONA SQUAMOSA, AND PROCESS FOR ITS PREPARATION

摘要

The global crop productivity has suffered from attack of several pests of which homopteran insects cause a major damage to rice, mustard, tobacco, cotton and chickpea. The present invention attempts to protect the crop loss by affecting the target pests, mustard aphid and red cotton bug with the help of mannose binding insecticidal lectins from seeds of Annona squamosa. The lectin has undernoted nucleotide sequence ATGGCCAGGAACCTACTGACGAACGGTGAAGGACTCTACGCAGGCCAATCACTG GATGTAGAACAATACAAGTTTATAATGCAGGATGACTGCAACCTCGTGCTGTACGAATA CAGCACCCCCATCTGGGCCTCTAACACCGGTGTCACCGGCAAAAACGGGTGCAGGGCTG TCATGCAGAGGGATGGCAACTTTGTGGTCTACGATGTTAACGGACGTCCCGTCTGGGCC AGTAACAGTGTAAGAGGGAACGGGAACTATATCCTGGTGCTTCAGAAGGACAGGAACGT TGTCATTTACGGATCTGATATTTGGTCTACTGGTACCTACAGAGATTAG The present invention also relates to a process for isolation of pure lectin from seeds of Annona squamosa.