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^ШХР: *http://jee.oxfordjournals.org/content/by/year
^АВТ: Hall D.G.; Albrecht U.; Bowman K.D.
^ЗГЛ: Transmission Rates of "Ca. Liberibacter asiaticus" by Asian Citrus Psyllid Are Enhanced by the Presence and Developmental Stage of Citrus Flush [Влияние молодых листьев на разных стадиях развития на интенсивность передачи бактерии Liberibacter asiaticus (возбудитель позеленения цитрусовых) псиллидой Diaphorina citri. (США)]
^ВЫХ: Journal of Economic Entomology, 2016; Vol.109,N 2. - P. 558-563
^ДАТ: 2016
^ПРМ: Bibliogr.:p.562-563
+Реферат:

^РЕФ: Asian citrus psyllid (Diaphorina citri Kuwayama) transmits a bacterium СCandidatus Liberibacter asiaticus' (CLas) putatively responsible for a devastating citrus disease known as Asiatic huanglongbing (HLB) (citrus greening disease). The psyllid and disease have invaded many citrus-growing regions including the United States, where the disease is seriously jeopardizing the Florida citrus industry. We recently concluded research that showed CLas transmission rates are increased when citrus flush is present. Flush is any new leaf growth ranging in development from first emergence up until the leaves are fully expanded yet still tender. In an experiment with seedlings of a rootstock cultivar СUS-942', a 1-wk infestation of 20 Asian citrus psyllids from an infected colony resulted in 53-60% of seedlings becoming infected when flush was present compared with only 7% when no flush was present. In a second experiment with СUS-942', 77-97% of seedlings became infected when flush was present compared with 40% when no flush was present. A similar experiment with СValencia' sweet orange resulted in 23, 80, and 3% seedlings becoming infected when young, older, or no flush was present, respectively. Young plants are therefore more likely to contract HLB if flush is present, with older flush promoting higher infection rates under the conditions of this study. Based on this finding, healthy citrus should be protected from Asian citrus psyllid infestations throughout a flush. To evaluate germplasm for CLas resistance, inoculations using infected Asian citrus psyllid would best be achieved if flush is present. aref1

^TRN: 1639809
^ВИД: Статья из книги
^ЯЗК: Английский
+Индексирование:

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