Composition of litter-decomposing fungal community under snow cover in a cool-temperate forest and their extracellular enzyme activity

寒温带森林积雪下凋落物分解真菌群落组成及其胞外酶活性

• 批准号: 21570013
• 负责人: MIYAMOTO Toshizumi
• 金额: $ 3.16万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21570013/
• 关键词: リター分解; 菌類群集; 低温; 積雪; 分解酵素

We investigated the decomposition of leaf litter and the composition of litter-decomposing fungal community under snow cover in some forest stands in Hokkaido, and their extracellular enzyme productivity at low temperature. It was observed that while the oak and fir foliage litter lost their original weight under snow during the winter season, some fungi appeared or increased the frequency. Some fungi isolated from oak litter were found to extend the mycelia on the media and indicated ligninolytic activity at 0℃. These results suggest that some litter-decomposing fungi, which have potential ability to degrade lignin at 0℃, significantly contribute the litter decomposition under snow cover.

研究了北海道部分林分积雪下凋落叶的分解和凋落叶分解真菌群落的组成，以及它们在低温条件下的胞外酶产率。结果表明，在冬季降雪条件下，栎树和冷杉凋落物在失去原有重量的同时，出现或增加了真菌的数量。从栎树凋落物中分离出的真菌在培养基上菌丝扩展，并在0℃时表现出降解木质素的活性。这些结果表明，一些在0℃条件下具有降解木质素能力的凋落物分解真菌对积雪条件下的凋落物分解有重要贡献。

项目成果

雪の下でも種子・芽生えは病原菌に狙われている?

即使在雪下，种子和豆芽也会成为病原体的目标吗？

• 发表时间: 2009
• 作者: 須田大祐;渡辺守;宮本敏澄
• 通讯作者: 宮本敏澄

風倒木処理地におけるトドマツ材の分解

意外收获树处置场库页岛冷杉木的分解

• 发表时间: 2010
• 作者: Watanabe;M;宮本敏澄;小池文人;渡辺守;青木かがり・天野雅男・森恭一・岡本亮介・窪寺恒己・佐藤克文;橋本俊一・宮本敏澄・玉井裕・矢島崇
• 通讯作者: 橋本俊一・宮本敏澄・玉井裕・矢島崇

Relationship between intraspecific variations and host insects of Ophiocordyceps nutans collected in Japan

• DOI: 10.1007/s10267-011-0137-0
• 发表时间: 2012-03
• 期刊: Mycoscience
• 影响因子: 1.4
• 作者: F. Sasaki;Toshizumi Miyamoto;A. Yamamoto;Y. Tamai;T. Yajima

Morphological and molecular characterization of Pisolithus in soil under Eucalyptus plantations in Brazil

巴西桉树人工林土壤中豆子的形态和分子特征

• 发表时间: 2010
• 期刊: Rev. Bras. Cienc. Solo
• 作者: Maria Catarina Megumi Kasuya;Irene da Silva Coelho;Daniela Tiago da Silva Campos;Elza Fernandes de Araujo;Yutaka Tamai & Toshizumi Miyamoto
• 通讯作者: Yutaka Tamai & Toshizumi Miyamoto

積雪下のリター分解に関わる菌類とそのphenoleoxidaseの産生能

雪下参与凋落物分解的真菌及其酚氧化酶产生能力

• 发表时间: 2010
• 作者: 加藤賢太;渡辺守;宮本敏澄・幸田圭一
• 通讯作者: 宮本敏澄・幸田圭一