茶树的生物降解研究肯尼亚不同产茶县的低氧梭菌(Hypoxylon sp.)分离株

茶叶科学 Pub Date : 2020-09-30 DOI:10.20425/IJTS1511

J. Langat, R. Ramkat, R. Mose

{"title":"茶树的生物降解研究肯尼亚不同产茶县的低氧梭菌(Hypoxylon sp.)分离株","authors":"J. Langat, R. Ramkat, R. Mose","doi":"10.20425/IJTS1511","DOIUrl":null,"url":null,"abstract":"Many fungi play a vital role in the decomposition of wood in nature and nutrient cycling, yet some afflict serious damage to cultivated tree crops and forestry. Tea (Camellia sinensis (L) O. Kuntze) is affected by Hypoxylon wood rot (HWR) disease caused by the Hypoxylon sp. Pers ex Fr. In the recent years; there have been reports on increase of the disease in Kenya. This study aimed at determining disease incidence and biodegradation by 59 Hypoxylon isolates from diverse tea growing counties of Kenya on wood, from resistant (TRFK 6/25) and susceptible (TRFK 6/129) tea cultivars. The disease incidence varied (p less than or eqaul to 0.05) in different counties (6.7 to 77.5%) and was more prevalent in tea cultivars (77.5%) than seedling type of teas (15.7%). Bio-degradation of wood was performed in Falcon tubes for 40 days. The 59 Hypoxylon isolates significantly (p less than or eqaul to 0.05) bio-degraded tea wood. The weight loss ranged from 4.84 to 16.44% in the susceptible and 4.61 to 12.64% in the resistant cultivars. The results indicate the potential use of biodegradation to evaluate resistance of tea cultivars to damage by Hypoxylon sp. This study concludes that biodegradation is potentially usable technique to screen tea cultivars for resistance to HWR.","PeriodicalId":17156,"journal":{"name":"茶叶科学","volume":"44 1","pages":"01-05"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Biodegradation of Camellia sinensis (L.) O. Kuntze Wood by Hypoxylon sp. Isolates from Diverse Tea Growing Counties of Kenya\",\"authors\":\"J. Langat, R. Ramkat, R. Mose\",\"doi\":\"10.20425/IJTS1511\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Many fungi play a vital role in the decomposition of wood in nature and nutrient cycling, yet some afflict serious damage to cultivated tree crops and forestry. Tea (Camellia sinensis (L) O. Kuntze) is affected by Hypoxylon wood rot (HWR) disease caused by the Hypoxylon sp. Pers ex Fr. In the recent years; there have been reports on increase of the disease in Kenya. This study aimed at determining disease incidence and biodegradation by 59 Hypoxylon isolates from diverse tea growing counties of Kenya on wood, from resistant (TRFK 6/25) and susceptible (TRFK 6/129) tea cultivars. The disease incidence varied (p less than or eqaul to 0.05) in different counties (6.7 to 77.5%) and was more prevalent in tea cultivars (77.5%) than seedling type of teas (15.7%). Bio-degradation of wood was performed in Falcon tubes for 40 days. The 59 Hypoxylon isolates significantly (p less than or eqaul to 0.05) bio-degraded tea wood. The weight loss ranged from 4.84 to 16.44% in the susceptible and 4.61 to 12.64% in the resistant cultivars. The results indicate the potential use of biodegradation to evaluate resistance of tea cultivars to damage by Hypoxylon sp. This study concludes that biodegradation is potentially usable technique to screen tea cultivars for resistance to HWR.\",\"PeriodicalId\":17156,\"journal\":{\"name\":\"茶叶科学\",\"volume\":\"44 1\",\"pages\":\"01-05\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"茶叶科学\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.20425/IJTS1511\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"茶叶科学","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.20425/IJTS1511","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

许多真菌在自然界木材的分解和养分循环中起着至关重要的作用，但有些真菌对栽培的树木作物和林业造成严重损害。近年来，茶树(Camellia sinensis (L) O. Kuntze)遭受了由矮杉木(Hypoxylon sp. Pers ex Fr.)引起的木腐病(HWR)。有报道称肯尼亚的疫情有所增加。本研究旨在测定来自肯尼亚不同产茶县的59株耐药(TRFK 6/25)和易感(TRFK 6/129)茶叶品种的低氧ylon在木材上的发病率和生物降解情况。各县发病率差异显著(p < 0.05)(6.7 ~ 77.5%)，以茶树品种发病率(77.5%)高于茶树苗型发病率(15.7%)。木材的生物降解在Falcon试管中进行了40天。59株Hypoxylon对茶木有显著降解(p≤0.05)。易感品种的失重幅度为4.84 ~ 16.44%，抗性品种的失重幅度为4.61 ~ 12.64%。研究结果表明，生物降解技术可用于茶叶品种对褐枯病菌的抗性评价，是筛选茶叶品种对褐枯病菌抗性的有效技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Biodegradation of Camellia sinensis (L.) O. Kuntze Wood by Hypoxylon sp. Isolates from Diverse Tea Growing Counties of Kenya

Many fungi play a vital role in the decomposition of wood in nature and nutrient cycling, yet some afflict serious damage to cultivated tree crops and forestry. Tea (Camellia sinensis (L) O. Kuntze) is affected by Hypoxylon wood rot (HWR) disease caused by the Hypoxylon sp. Pers ex Fr. In the recent years; there have been reports on increase of the disease in Kenya. This study aimed at determining disease incidence and biodegradation by 59 Hypoxylon isolates from diverse tea growing counties of Kenya on wood, from resistant (TRFK 6/25) and susceptible (TRFK 6/129) tea cultivars. The disease incidence varied (p less than or eqaul to 0.05) in different counties (6.7 to 77.5%) and was more prevalent in tea cultivars (77.5%) than seedling type of teas (15.7%). Bio-degradation of wood was performed in Falcon tubes for 40 days. The 59 Hypoxylon isolates significantly (p less than or eqaul to 0.05) bio-degraded tea wood. The weight loss ranged from 4.84 to 16.44% in the susceptible and 4.61 to 12.64% in the resistant cultivars. The results indicate the potential use of biodegradation to evaluate resistance of tea cultivars to damage by Hypoxylon sp. This study concludes that biodegradation is potentially usable technique to screen tea cultivars for resistance to HWR.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

茶叶科学

CiteScore

1.50

自引率

0.00%

发文量

2558

期刊介绍： The Journal of Tea Science was established in August 1964, approved by the Publicity Department, CCCPC. Its title was inscribed by Zhu De, the chairman of CCCPC. It was discontinued during the Cultural Revolution in 1966, and it was reissued in August 1984, approved by the State Scientific and Technological Commission.Academicians Chen Zongmao and Liu Zhonghuaof the Chinese Academy of Engineering served as the directors of the editorial board. The Journal of Tea Science is managed by the China Association for Science and Technology,sponsored by the China Tea Science Society and the Tea Research Institute of the Chinese Academy of Agricultural Sciences, and edited and published by the editorial office of the Journal of Tea Science. It is the only one of Chinese core journals in the field of tea science that is included in the core library of the Chinese Science Citation Database.Its Domestic Unified Serial Number is CN 33-1115/S, its International Standard Serial Number is ISSN 1000-369X and its International publication name code is CODEN-CHKEF4. At present, the Journal of Tea Science is a bimonthly publication, published in the middle of the month, with a book size of 16.