000 02240nam a2200325 4500
001 UPMIN-00000014743
005 20220921142406.0
040 _aDLC
_cDLC
_dupmin
041 _aeng
090 _aLG993.5 2007
_bB4 B66
100 1 _aBongcawil, Roxanne Yen C.
245 0 0 _aIn vitro morphological studies and cultural characterization of Pestalotiopsis Sp. associated with Nepenthes truncata macf. /
_cRoxanne Yen C. Bongcawil.
502 _aThesis (BS Biology) -- University of the Philippines Mindanao, 2007
300 _a40 leaves
650 0 _aGungi.
650 _aNepenthes species.
650 _aFungal diseases.
650 _aPathogenicity.
650 _aInoculum.
650 _aInoculation.
650 _aReisolation.
650 _aVitro.
650 _aMorphological
_xStudies.
650 _aGermination.
260 _c2007
520 _aA fungus pestalotiopsis sp. from brown leafspot-infected pitcher plants (Nephentes truncate macf.) in Marilog District, Davao City was isolated to pure culture. Fungus growth in plated Potato Dextrose Agar (PDA) appeared white and cottony with punctiform acervuli. Under microscopy, the fungus hypha is hyaline, septated with hyphal cells measuring 23.99 (1.40)m wide. The conidia, which define the genius, are fusiform with 3 yellowish-brown median cells and hyaline appendages at opposite ends. The basal portion having 1 and the apical portion with 2 to 3 appendages. Total spore size is 22.09 ((1.73)m long and 6.11 (0.64)m wide. The 3 median cells measured 15 (1.17)m long. The basal appendage is 5.04 (1.69)m long while the apical appendages ranged from 9.54 to 34.09m, with an average of 20.41 (6.35)m ling. In axenic PDA medium, cultures grown under alternating 12-hr light and 12-hr darkness had the widest colonies, however, spore production was highest with continuous light after a 7-day growth time. No spore was observed on cultures under continuous darkness. Colony growth was widest and spore production highest with cultures under pH 8. Mycelial growth was not significantly influenced by culture temperatures, 230C and 27oC, however, spore production was higher in the former
658 _aUndergraduate Thesis
_cBIO200,
_2BSB
905 _aFi
905 _aUP
999 _c681
_d681