Paper Details

PJB-2013-261

POTENTIAL OF AZADIRACHTIN-D FRACTION AGAINST BACTERIAL LEAF BLIGHT DISEASE IN RICE CAUSED BY XANTHOMONAS ORYZAE PV. ORYZAE

RUKHSANA JABEEN1* MISBAH MANZOOR1, SHAZIA IRFAN1 AND TEHREEMA IFTIKHAR2
Abstract


In the present study organic extracts (Chloroform) of twenty four plants were tested through anti-bacterial susceptibility test against specific bacterium X. oryzae causing Bacterial Leaf Blight (BLB) disease in rice. Azarditacha indica extract showed high efficacy against Xoo bacterium forming larger inhibition zone (18.5 mm) with activity index (0.64).Further extract of Azarditacha indica fractionated, most active fraction were tested using bio autography agar overlay method against test bacterium, isolate, purify and characterized the most promising fraction and it’s supposed to be 1-Tigloyl-3-acetyl-1, 1-hydroxymeliacarpin (Azadirachtin-D).

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