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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Fig Pin Nematode ： ウィキペディア英語版 Fig Pin Nematode P. hamatus.jpg|The Fig Pin Nematode (from http://plpnemweb.ucdavis.edu/Nemaplex/Taxadata/G099S1.HTM) The Fig Pin Nematode, ''Paratylenchus hamatus'', is a migratory plant endoparasite, that causes lesions on plant roots resulting in symptoms of chlorosis, wilting and ultimtely yield losses (6,12). They move and feed on different parts of host tissue throughout their life cycle in order to find enough susceptible host tissue to survive and reproduce (7). A wide range of host plant species are susceptible to the fig pin nematode, including many valuable fruit and vegetable crops such as figs, carrots and celery (5,13). They are also commonly found associated with woody perennials in California (10). ''P. hamatus'' inhabits soils in both Europe and North America, and was originally isolated from fig in central California in 1950 (1). == Hosts and Symptoms == ''Paratylenchus spp.'' nematodes have a wide variety of hosts with a recorded 25 different plants it is able to infect (9). ''Paratylenchus hamatus'' feeds on the roots of Fig trees, celery, grapes, and peaches (5). ''P. hamatus'' has also been documented to cause patchy areas of chlorosis and wilting in lentils, resulting in up to 40% yield loss (12). Symptoms appear in patches or clusters and plants show a slow and general decline in growth and vigor. Common symptoms of infection are that of other root nematodes; stunted growth of the plant as well as the roots, chlorosis, leaf drop, reduced plant weight or yield, and undersized fruit are all symptoms which may be seen (4,6,8,9). These symptoms are universal across the different plant species it infects. Shallow localized lesions on the roots can be seen at feeding sites (4). No signs are present with the exception of the nematodes themselves and their eggs, which are not visible to the naked eye. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fig Pin Nematode」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.