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Cohabitation of the pine wood nematode, Bursaphelenchus xylophilus, and fungal species in pine trees inoculated with B. xylophilus

Cohabitation of the pine wood nematode, Bursaphelenchus xylophilus, and fungal species in pine... AbstractThe relationship between the pine wood nematode (PWN), Bursaphelenchusxylophilus, and fungi cohabiting in 15-year-old Japanese black pine, Pinusthunbergii, was examined at intervals of 2 months over a year followinginoculation with PWN. The population of PWN in the trees was large inAugust, but decreased slightly in December then increased again in February.Eighteen species of fungi were isolated from wood samples of the pine treesexamined. Among them were Phialophora repens, Sphaeropsis sapinea,Pestalotiopsis spp. and Rhizoctonia sp., which were detected most frequentlyevery season. All of these dominant fungi had positive effects on increasingthe nematode population except for Rhizoctonia sp., on which PWN propagatedless. Under laboratory conditions, 18 species of fungi isolated from pinetrees and Botrytis cinerea cultured on potato dextrose agar served as foodfor PWN, and PWN population build up was compared at 20°C. PWN increasedsignificantly on Pestalotiopsis sp. 1, Pestalotiopsis sp. 2, Sphaeropsissapinea, Phialophora repens and B. cinerea from 10-15 days afterinoculation. From the viewpoint of food quality and their cohabitingability, we concluded that the species of fungi that were dominant in thepine trees, except for Rhizoctonia sp., had a compatible relationship withPWN, whilst Rhizoctonia sp. and Penicillium spp. were neutral, andTrichoderma spp. had an incompatible relationship with PWN. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematology Brill

Cohabitation of the pine wood nematode, Bursaphelenchus xylophilus, and fungal species in pine trees inoculated with B. xylophilus

Sriwati, Rina; Takemoto, Shuhei; Futai, Kazuyoshi
Nematology , Volume 9 (1): 10 – Jan 1, 2007
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
1388-5545
eISSN
1568-5411
DOI
10.1163/156854107779969655
Publisher site
See Article on Publisher Site

Abstract

AbstractThe relationship between the pine wood nematode (PWN), Bursaphelenchusxylophilus, and fungi cohabiting in 15-year-old Japanese black pine, Pinusthunbergii, was examined at intervals of 2 months over a year followinginoculation with PWN. The population of PWN in the trees was large inAugust, but decreased slightly in December then increased again in February.Eighteen species of fungi were isolated from wood samples of the pine treesexamined. Among them were Phialophora repens, Sphaeropsis sapinea,Pestalotiopsis spp. and Rhizoctonia sp., which were detected most frequentlyevery season. All of these dominant fungi had positive effects on increasingthe nematode population except for Rhizoctonia sp., on which PWN propagatedless. Under laboratory conditions, 18 species of fungi isolated from pinetrees and Botrytis cinerea cultured on potato dextrose agar served as foodfor PWN, and PWN population build up was compared at 20°C. PWN increasedsignificantly on Pestalotiopsis sp. 1, Pestalotiopsis sp. 2, Sphaeropsissapinea, Phialophora repens and B. cinerea from 10-15 days afterinoculation. From the viewpoint of food quality and their cohabitingability, we concluded that the species of fungi that were dominant in thepine trees, except for Rhizoctonia sp., had a compatible relationship withPWN, whilst Rhizoctonia sp. and Penicillium spp. were neutral, andTrichoderma spp. had an incompatible relationship with PWN.

Journal

Nematology – Brill

Published: Jan 1, 2007

Keywords: COHABITING FUNGI; SPATIAL DISTRIBUTION; PINE WILT; FOOD QUALITY

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