Korsgaardcooney7238

Z Iurium Wiki

olo_da_erysiphe_corylacearum.pdf Sezer AD et al. 2017. Phytoparasitica, 45, 577-581. Voglmayr H et al. 2020. New Disease Reports, 42, 14 http//dx.doi.org/10.5197/j.2044-0588.2020.042.014.Repeated sampling conducted from December 2019 to March 2020, and fruit of pineapple (Ananas comosus) var MD2 showing early stem end rot symptoms including brown and rotten fruit skin near the stem end region (Fig.1Aa) or darker skin with black discoloration (Fig.1Ab) indicated a consistent fungal infection. The samples (30 fruits from each location) were collected from store houses in three farmer fields with 60% disease incidence in Serdang, (3.0220oN,101.7055oE), Selangor, West Malaysia. find more The pulp of infected fruits appeared watery with characteristic spoilage odour. Symptomatic necrotic tissues from stem end region and skin were cut in to pieces (1x1cm), surface sterilized and plated onto potato dextrose agar amended aseptically with 0.5 g L-1 streptomycin sulphate. The plates were incubated at room temperature (28±2oC) in natural light conditions. Five days old cultures were light grey in colour and gradually turned dark brown to black with dense deeply tufted, mycelium as the culture aged (Fig.1B, C). Coo develop postharvest economic losses to pineapple industry, if severely affected fruits with high population of the pathogen left unattended in store houses.Alternaria rot caused by Alternaria species is one of the major postharvest diseases of mandarin fruit in California. The aims of this study were to identify these Alternaria species using phylogenetic analyses and morphological characteristics and test their pathogenicity to mandarin. Decayed mandarin fruit exhibiting Alternaria rot symptoms were collected from three citrus fruit packinghouses in the Central Valley of California. In total, 177 Alternaria isolates were obtained from decayed fruit and preliminarily separated into three groups representing three species (A. alternata, A. tenuissima and A. arborescens) based on the colony characterization and sporulation patterns. To further identify these isolates, phylogenetic analysis was conducted based on DNA sequences of the second largest subunit of RNA polymerase II (RPB2), plasma membrane ATPase (ATPase) and Calmodulin gene regions in combination with morphological characters. Of the 177 isolates, 124 isolates (70.1%) were identified as A. alternata and 53 isolates (29.9 %) were A. arborescens. The isolates initially identified as A. tenuissima based on the morphological characteristics could not be separated from those of A. alternata in phylogenetic analysis and thus considered A. alternata. Pathogenicity tests showed that both Alternaria species were pathogenic on mandarin fruit at both 5°C and 20°C. Our results indicated that two Alternaria species, A. alternata and A. arborescens, were responsible for Alternaria rot of mandarin fruit in California with A. arborescens causing fruit rot on mandarin being reported for the first time.Maize (Zea mays L.) stalk rot, caused primarily by the soil-borne fungal pathogen Fusarium spp., reduces maize quality and yield worldwide. This study was undertaken to develop and utilize a rapid continuous injection inoculation technique to evaluate maize inbred lines for resistance to Fusarium spp. under field conditions, which could facilitate the identification and development of new sources of host resistance to manage the disease. Continuous injection inoculation is a rapid, stable, and simple method that can evaluate the resistance of maize inbred lines to Fusarium stalk rot (FSR) within 20 days. To verify the feasibility and reliability of inoculation method, Fusarium graminearum, F. proliferatum, and F. subglutinans were isolated, identified, and inoculated into maize at the six-leaf stage (V6) by a veterinary adjustable bottle continuous vaccination syringe. Our results showed that out of a total of 97 inbred maize lines, six (6.2%) showed high resistance to maize stalk rot, 20 showed resistance (20.6%), 32 were susceptible (33.0%), and 39 were very susceptible (40.2%). Based on simple sequence repeat (SSR) markers, an analysis of molecular variance indicated a significant correlation between population of the inbred maize line and resistance to FSR (P = 0.001). Overall, this study provided a systematic, rapid, stable, and simple identification method for maize inbred lines resistant to FSR in the field. At the same time, this method was also suitable for genetic diversity analysis of maize inbred lines resistant to FSR.The burden of noncommunicable diseases (NCDs) continues to rise across the globe, and the risk of dying prematurely from an NCD in a low- and middle-income country (LMIC) is almost double that in a high-income country. Confronting this crisis requires a critical mass of scientists who are well versed in regional health problems and understand the cultural, social, economic, and political contexts that influence the effectiveness of interventions to address NCDs. Investing in research capacity strengthening in LMICs is critical to effectively combating disease, and local researchers are best poised to address the health challenges in their home countries given their understanding of the unique culture and context in which they are working. The Fogarty International Center of the U.S. National Institutes of Health has a set of programs focused on building individual and institutional NCD research capacity in LMICs. The Programs provide models for sustainable scientific research capacity strengthening, innovative funding mechanisms and partnership-building approaches. Investing in the training and scientific capacity of LMIC individuals and institutions not only helps foster a research culture and solidify local ownership of research, but it also ensures that the most appropriate solutions are developed, increasing the likelihood that those solutions will sustain over time. In addition, the Programs' investigators have advanced the science across a range of NCDs and associated risk factors. This article describes key lessons and compelling cases from the Programs that can be harnessed by other health researchers and funders to further the global response to the NCD burden.

Autoři článku: Korsgaardcooney7238 (Stephansen Molloy)