Publications by authors named "Adriano F Dorigan"
Article Synopsis
- The study investigates fungicide resistance in Alternaria alternata populations, specifically identifying the G143A mutation in cytochrome b (cytb) linked to resistance in Brazilian orchards.
- Using techniques like confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM), researchers examined the behavior of resistant (QoI-R) and sensitive (QoI-S) isolates when exposed to the QoI fungicide pyraclostrobin.
- Findings indicate that QoI-S conidia produced reactive oxygen species (ROS) and showed cell death, while QoI-R conidia did not, illustrating distinct responses between the two phenotypes during interactions with the fungicide.
Fungicides are indispensable for high-quality crops, but the rapid emergence and evolution of fungicide resistance have become the most important issues in modern agriculture. Hence, the sustainability and profitability of agricultural production have been challenged due to the limited number of fungicide chemical classes. Resistance to site-specific fungicides has principally been linked to target and non-target site mechanisms.
View Article and Find Full Text PDFBackground: Quinone outside inhibitor (QoI) fungicides have not been effective in controlling the wheat blast disease [Pyricularia oryzae Triticum lineage (PoTl)] in Brazil. The first report of resistance of PoTl to QoIs in this country occurred in 2015. This study aimed to test hypotheses about the changes in fitness parameters and competitive advantage of the QoI-resistant (R) PoTl isolate group compared to the sensitive (S) isolate group.
View Article and Find Full Text PDFWheat blast, caused by Magnaporthe oryzae, is an important disease across central and southern Brazil. Control has relied mainly on strobilurin fungicides (quinone-outside inhibitors [QoIs]). Here, we report the widespread distribution of QoI resistance in M.
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