DIFFERENTIAL HYPERSENSITIVE RESPONSE OF NON-HOST SPECIES TO XANTHOMONAS ORYZAE PV. ORYZAE IN THENORTHWEST PAKISTAN

Authors

  • RIZWAN KHAN Department of Plant Pathology, The University of Agriculture Peshawar, Pakistan
  • AZAZ SHAKIR Department of Entomology, The University of Agriculture Peshawar, Pakistan
  • ADAM KHAN Dr. Moinuddin Ahmed Research Laboratory of Dendrochronology and Plant Ecology Department of Botany, Federal Urdu University, Gulshan-e-Iqbal Karachi, Pakistan
  • PARAS SHAH Dr. Abdul Ghaffar Laboratory of Pathology, Department of Botany, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Karachi, Pakistan
  • MUHAMMAD ABBAS KHAN Department of Hoticulture, The University of Agriculture Peshawar, Pakistan
  • SAIF ULLAH Department of Agronomy, The University of Agriculture Peshawar, Pakistan
  • ABDUL WALI SHAH Department of Plant Pathology, The University of Agriculture Peshawar, Pakistan
  • AZMAT AWAN Agriculture Research Institute, Tarnab, Peshawar
  • NOUREEN BASHEER Dr. Abdul Ghaffar Laboratory of Pathology, Department of Botany, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Karachi, Pakistan

Abstract

Hypersensitive response (HR) is a defensive mechanism system in the plant, which prevents the spread of pathogens. It characterized in form of cells death in the surrounding and produce a distinctive feature of resistance among various types of incompatible interactions between plant and pathogen. Rice is of one the most important food an Asian countries but Pakistan is suffering from the attack of many diseases particularly the bacterial leaf blight. To evaluate the hypersensitivity response of diverse isolates of Xanthomonasoryzaepv. oryzae (Xoo) from rice on different plant species. The experiment comprised of ten isolates of Xanthomonasoryzaepv. Oryzae along with three non-host species used for hypersensitivity response. To test the response of hypersensitivity, the bacterium was confirmed by Physiological and biochemical tests. All tests have shown the positive response for the bacterium and confirmed the causal organism as Xanthomonasoryzaepv. oryzae. Datura (Daturawrightii) had good hypersensitivity response in term of lesions size as compared to Lambs-Quarter (Chenopodium album) whereas Milk-Thistle (Silybummarianum) showed poor hypersensitivity response to isolates.

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Published

2019-05-30