|
Little cherry disease or LChD, sometimes referred to as little cherry, K & S little cherry or sour cherry decline, is a viral infectious disease that affects cherry trees, most notably sweet cherries (''Prunus avium'') and sour cherries (''Prunus cerasus'').〔 〕 Little cherry disease should not be confused with cherry buckskin disease, which is caused by Phytoplasma.〔 〕 Note that both diseases are among the disease refereed to as cherry decline.〔〔 〕 == Causes == Little cherry disease is associated with two filamentous plant viruses of the family Closteroviridae, little cherry virus-1 (LChV-1) and little cherry virus-2 (LChV-2). Whereas little cherry virus-2 belongs to the genus ''Ampelovirus'', little cherry virus-1 has been assigned (2013) to the genus ''Velarivirus''.〔〔 〕〔 〕〔(ICTV Virus Taxonomy 2014 ), accessed on line Nov. 18, 2015.〕〔(ICTV Taxonomy History for Velarivirus ), accessed on line Nov. 18, 2015.〕〔(ICTV proposal 2012.001a-fP ), "New genus ''Velarivirus'' in the family ''Closteroviridae'' and new species ''Cordyline Virus1'' to be assigned to the new genus", G. P. Martelli.〕 Both viruses are found in the phloem companion and parenchyma cells of infected plants.〔 〕 Little cherry virus-1 has been reported in, apart from cherry trees, plum, almond and peach.〔 〕 Due to considerable genetic variation among strains, isolates from both viruses have previously been designated as belonging to new and separate species before being reassigned to one of the two recognized viruses.〔 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「little cherry disease」の詳細全文を読む スポンサード リンク
|