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	Provedor de dados Naturalis (4) Autor Wingfield, M.J. (4) Zhou, X.D. (4) Jacobs, K. (2) Lombard, L. (2) Beer, Z.W. de (1) Chen, S.F. (1) Chhetri, D.B. (1) Crous, P.W. (1) Kirisits, T. (1) Paciura, D. (1) Roux, J. (1) Wingfield, B.D. (1) Xie, Y.J. (1) Ye, H. (1) Mais... Palavra-chave Cylindrocladium (2) Australia (1) Bark beetle (1) Calonectria (1) China (1) Curculionidae (1) Eucalyptus (1) Eucalyptus plantations (1) Forest pests (1) FuJian (1) Hylobitelus (1) Insect-fungus relationship (1) Leptographium (1) Ophiostoma (1) Ophiostomatales (1) Ophiostomatoid fungi (1) Pathogenicity (1) Symbiosis (1) Systematics (1) Mais... Tipo do documento Article / Letter to the editor (4) Ano 2011 (1) 2010 (2) 2008 (1) País Netherlands (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Leptographium bhutanense sp. nov., associated with the root collar weevil Hylobitelus chenkupdorjii on Pinus wallichiana in Bhutan Naturalis Zhou, X.D.; Jacobs, K.; Kirisits, T.; Chhetri, D.B.; Wingfield, M.J.. Leptographium spp. are commonly associated with bark beetles and weevils (Coleoptera: Curculionidae), and some are important tree pathogens. In a recent survey of diseases and insect pests of conifer trees in Bhutan, the root collar weevil, Hylobitelus chenkupdorjii was found girdling young Himalayan blue pine (Pinus wallichiana) trees in Central Bhutan. Intensive wood staining and a Leptographium sp. were associated with damage by this insect. The fungus was also isolated from individuals of H. chenkupdorjii. It was tentatively identified based on morphology and then compared with other Leptographium spp. using DNA sequences for three gene regions. Morphological characteristics showed that the Leptographium sp. from H. chenkupdorjii is similar to, but... Tipo: Article / Letter to the editor Palavras-chave: Curculionidae; Forest pests; Hylobitelus; Leptographium; Ophiostomatoid fungi. Ano: 2008 URL: http://www.repository.naturalis.nl/record/531695 Novel species of Calonectria associated with Eucalyptus leaf blight in Southeast China Naturalis Chen, S.F.; Lombard, L.; Roux, J.; Xie, Y.J.; Wingfield, M.J.; Zhou, X.D.. Leaf blight caused by Calonectria spp. is an important disease occurring on Eucalyptus trees grown in plantations of Southeast Asia. Symptoms of leaf blight caused by Calonectria spp. have recently been observed in commercial Eucalyptus plantations in FuJian Province in Southeast China. The aim of this study was to identify these Calonectria spp. employing morphological characteristics, DNA sequence comparisons for the β-tubulin, histone H3 and translation elongation factor-1α gene regions and sexual compatibility. Four Calonectria spp. were identified, including Ca. pauciramosa and three novel taxa described here as Ca. crousiana, Ca. fujianensis and Ca. pseudocolhounii. Inoculation tests showed that all four Calonectria spp. found in this study were... Tipo: Article / Letter to the editor Palavras-chave: Cylindrocladium; Eucalyptus plantations; FuJian; Pathogenicity. Ano: 2011 URL: http://www.repository.naturalis.nl/record/531718 Eight new Leptographium species associated with tree-infesting bark beetles in China Naturalis Paciura, D.; Beer, Z.W. de; Jacobs, K.; Zhou, X.D.; Ye, H.; Wingfield, M.J.. The timber and pulp industries of Finland rely heavily on importations from Russia as source of raw timber. These imports raise the risk of accidentally importing forest pests and pathogens, especially bark beetles and their associated fungi, into Finland. Although ophiostomatoid fungi have previously been reported from Finland and Russia, the risks of accidentally moving these fungi has prompted a first survey to compare the diversity of conifer-infesting bark beetles and associated fungi from boreal forests on both sides of the Finnish-Russian border. The aim of the present study was to identify and characterise Ophiostoma species isolated in association with 11 bark beetle species infesting Pinus sylvestris and Picea abies during this survey in the... Tipo: Article / Letter to the editor Palavras-chave: Bark beetle; Insect-fungus relationship; Ophiostoma; Ophiostomatales; Symbiosis. Ano: 2010 URL: http://www.repository.naturalis.nl/record/532410 Calonectria species associated with cutting rot of Eucalyptus Naturalis Lombard, L.; Zhou, X.D.; Crous, P.W.; Wingfield, B.D.; Wingfield, M.J.. Decline in the productivity of Eucalyptus hybrid cutting production in the Guangdong Province of China is linked to cutting rot associated with several Calonectria spp. The aim of this study was to identify these fungi using morphological and DNA sequence comparisons. Two previously undescribed Calonectria spp., Ca. pseudoreteaudii sp. nov. and Ca. cerciana sp. nov. were identified together with Ca. pauciramosa. Calonectria pseudoreteaudii resides in the Ca. reteaudii complex and Ca. cerciana is closely related to Ca. morganii. Connected to the discovery of Ca. pseudoreteaudii, species in the Ca. reteaudii complex were re-considered and the group is shown to accommodate two cryptic species. These originate from Australia and are described as Ca.... Tipo: Article / Letter to the editor Palavras-chave: Australia; Calonectria; China; Cylindrocladium; Eucalyptus; Systematics. Ano: 2010 URL: http://www.repository.naturalis.nl/record/531722 Registros recuperados: 4 Primeira ... 1 ... 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