000 01867nam a2200205 4500
001 UPMIN-00000009147
005 20220921140840.0
040 _aDLC
_cDLC
_dupmin
041 _aeng
090 _aLG993.5 2003
_bB4 R85
100 1 _aRuiz, Marie Lorraine C.
245 0 0 _aAn inventory of Phytophthora palmivora butler, mycoflora, and arthropods in coconut leaf axil microhabitats /
_cMarie Lorraine C. Ruiz
502 _aThesis (BS Biology) -- University of the Philippines Mindanao, 2003
300 _a56 leaves
260 _c2003
520 _aThe presence of Phytophthora palmivora, fungi, and arthropods associated with organic matter in the leaf axil microhabitats of five healthy and four diseased palms was determined. P. palmivora was collected monly from diseased palms sampled and none from the healthy palms. Fungi belonging to the genera Penicillium, Aspergillus, and four unidentified fungal isolates (A, B, C, and D) were isolated, including Pestalotiopsis sp., a pathogen causing leaf spot/blight of coconut. The fungi isolated were initially tested for their antagonistic activity against P. palmivora. Aspergillus sp., Penicillium sp. B and Penicillium sp. C showed high % IRG (Inhibition of Radical Growth) on P. palmivora isolates with 54.6%, and 48.7% and 48.7%, respectively. Nineteen families of arthropods were reckoned, ten (10) of which were common to both healthy and diseased palms. Most of the arthropods inhabit moist and damp areas and consume dead plant materials, or are predators. It is surmised that some of these arthropods travel from the ground up to the crown to forage for food and find shelter in the leaf axils, with the likelihood that in the process, propagules of P. palmivora are carried to infection sits, where they can start pathogenesis
658 _aUndergraduate Thesis
_cBIO200,
_2BSB
905 _aFi
905 _aUP
999 _c221
_d221