کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8353439 | 1541898 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Eucalypt plants are physiologically and metabolically affected by infection with Ceratocystis fimbriata
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
Predawn water potentialmaximum quantum yield of photosystem IINPQRGRETRCi/Ca - CI / کلسیمGC–MS - GC-MSGas exchange - تبادل گازanalysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of varianceDark respiration - تنفس تیرهNon-photochemical quenching - خنک سازی غیر فتوشیمیاییPhotochemical quenching - رفع عکس شیمیاییdays after inoculation - روز بعد از تلقیحhours after inoculation - ساعت ها بعد از تلقیحgas chromatography–mass spectrometry - طیف سنجی جرم کروماتوگرافی گازPrimary metabolism - متابولیسم اولیهtranspiration rate - نرخ تنفسRelative growth rates - نرخ رشد نسبیStomata conductance - هدایت گرماWater potential - پتانسیل آبChlorophyll a fluorescence - کلروفیل یک فلورسانس
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ceratocystis wilt, caused by Ceratocystis fimbriata, is currently one of the most important disease in eucalypt plantations. Plants infected by C. fimbriata have lower volumetric growth, lower pulp yields and reduced timber values. The physiological bases of infection induced by this pathogen in eucalypt plant are not known. Therefore, this study aims to assess the physiological and metabolic changes in eucalypt clones that are resistant and susceptible to C. fimbriata. Once, we evaluated in detail their leaf gas exchange, chlorophyll a fluorescence, water potential, metabolite profiling and growth-related parameters. When inoculated, the susceptible clone displayed reduced water potential, CO2 assimilation rate, stomatal conductance, transpiration rate, photochemical quenching coefficient, electron transport rate, and root biomass. Inoculated resistant and susceptible clones both presented higher respiration rates than healthy plants. Many compounds of primary and secondary metabolism were significantly altered after fungal infection in both clones. These results suggest that, C. fimbriata interferes in the primary and secondary metabolism of plants that may be linked to the induction of defense mechanisms and that, due to water restrictions caused by the fungus in susceptible plants, there is a partial closure of the stomata to prevent water loss and a consequent reduction in photosynthesis and the transpiration rate, which in turn, leads to a decrease in the plant's growth-related. These results combined, allowed for a better understanding of the physiological and metabolic changes following the infectious process of C. fimbriata, which limit eucalypt plant growth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 123, February 2018, Pages 170-179
Journal: Plant Physiology and Biochemistry - Volume 123, February 2018, Pages 170-179
نویسندگان
André Costa da Silva, Franklin Magnum de Oliveira Silva, Jocimar Caiafa Milagre, Rebeca Patricia Omena-Garcia, Mário Castro Abreu, Reginaldo Gonçalves Mafia, Adriano Nunes-Nesi, Acelino Couto Alfenas,