Tropical Plant Pathology
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ToxA, a significant virulence factor involved in wheat spot blotch disease, exists in the Mexican population of Bipolaris sorokiniana
Tropical Plant Pathology - Tập 46 - Trang 201-206 - 2020
Spot blotch, caused by the pathogen Bipolaris sorokiniana, is an important foliar disease of wheat in warm and humid regions worldwide. The fungal virulence factor ToxA interacts with Tsn1 in wheat and leads to a susceptible reaction. ToxA has been found in B. sorokiniana populations of Australia, the USA, and India, and here we report its occurrence in Mexico, based on analysis of a collection of......
Common bacterial blight of beans: an integrated approach to disease management in Brazil
Tropical Plant Pathology - Tập 47 - Trang 457-469 - 2022
Common bacterial blight (CBB), caused by Xanthomonas phaseoli pv. phaseoli and Xanthomonas citri pv. fuscans, is the main bacterial disease of common bean (Phaseolus vulgaris) in Brazil and in the world. The disease affects the entire aerial part of the plants, especially in conditions of high temperature and humidity. Yield losses of up to 70% have been recorded in susceptible bean cultivars. The......
Optimal conditions for conidial germination and infection of European pear leaves by Diplocarpon mespili
Tropical Plant Pathology - Tập 41 - Trang 78-83 - 2016
The epidemiology of Entomosporium leaf spot (ELS) affecting European pear is poorly understood, which limits the development of an effective management strategy. In vitro assays were conducted to study the effect of temperature levels (5, 10, 15, 20, 25, and 30 °C) on Diplocarpon mespili conidial germination evaluated at different incubation times (0, 2, 4, 6, 8, 12, 24, and 48 h). Inoculation exp......
Novel Pathotypes of Elsinoë australis Associated with Citrus australasica and Simmondsia chinensis in Australia
Tropical Plant Pathology - Tập 40 - Trang 26-34 - 2015
Molecular phylogenetic analysis, morphology and pathogenicity to citrus fruit were used to study two isolates of Elsinoë australis associated with scab-like symptoms on a fruit of Citrus australasica (finger lime) and Simmondsia chinensis (jojoba) in Australia. In addition to being associated with finger lime, the isolate from finger lime could cause scab symptoms on C. × aurantium cv. Murcott tan......
Mild strain cross-protection in cacao: evaluation of symptom suppression in three progenies exposed to natural spread of the New Juabeng strain of the Cacao swollen shoot Togo B virus (CSSTBV)
Tropical Plant Pathology -
Overview of citrus huanglongbing spread and management strategies in Brazil
Tropical Plant Pathology - Tập 45 - Trang 251-264 - 2020
Huanglongbing (HLB) has been a serious threat to the citrus industry worldwide. After its first report in São Paulo State, the main citrus production area in Brazil, the disease spread to the States of Minas Gerais, Paraná and Mato Grosso do Sul. Attempts to cure plants or remiss disease symptoms and damages have been evaluated and showed to be inefficient and nonviable. The development of resista......
Seasonal dynamics in leaf viromes of grapevines depicting leafroll syndrome under tropical condition
Tropical Plant Pathology - Tập 47 - Trang 635-645 - 2022
Among the grapevine viral diseases, grapevine leafroll disease (GLD) complex is widespread and causes huge economic losses worldwide. The disease is incited by several viruses referred as grapevine leafroll-associated viruses (GLRaVs), either individually or in combinations. Conventional ELISA and real-time PCR assays have shown the seasonal fluctuation in GLRaV titers in temperate and sub-tropica......
Prevalence and levels of deoxynivalenol and zearalenone in commercial barley and wheat grain produced in Southern Brazil: an eight-year (2008 to 2015) summary
Tropical Plant Pathology - Tập 42 - Trang 146-152 - 2017
Fusarium head blight (FHB), caused mainly by Fusarium graminearum, is one of the most important diseases of barley and wheat in Brazil. The disease causes yield losses and contaminates grain with mycotoxins produced by the fungus, mainly deoxynivalenol (DON) and zearalenone (ZEA). The objective of this study was to summarize the results of 16,487 analyses of DON and ZEA in barley and wheat commerc......
Unravelling the complexity of maize resistance to bacterial and fungal diseases: an integrative perspective
Tropical Plant Pathology - Tập 47 - Trang 332-352 - 2022
Maize is one of the most important cereals for both human and animal nutrition, and diseases that affect the crop pose a major threat to global food security. Breeders are racing against time to develop genotypes resistant to diseases, which is the most sustainable management strategy. A deep understanding of maize pathogens, plant-pathogen interactions, the different layers of maize defenses, as ......
Integrated approach for managing Fusarium wilt of chickpea using Azadirachta indica leaf extract, Trichoderma harzianum and Bavistin
Tropical Plant Pathology -
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