Abstract
Very little is known about the physiological interactions between wheat quality and Fusarium head blight (FHB), which substantially reduces wheat grain yield and quality worldwide. In order to investigate stress-induced changes in flag leaves from plants artificially inoculated with Fusarium, we screened for chlorophyll a fluorescence transient at 1, 2, 4, 7 and 14 days after Fusarium inoculation. Our results indicate that the maximum quantum yield of photochemistry (Fv/Fm) and the performance index (PI) were not affected by FHB, but there were significant differences in those two traits between different varieties and measurement times. FHB caused a significant reduction in the percentage of glutenins (GLU), high-molecular-weight (HMW), and low-molecular-weight (LMW) subunits in ‘Kraljica’ and ‘Golubica’, unlike ‘Vulkan’, where the percentage of GLU increased.
Highlights
Wheat (Triticum aestivum L.) is a major cereal crop grown in temperate climate areas
There were no significant differences between treatments for performance index (PI), Fv /Fm, and interactions between varieties, measurement times, and treatments, except for PI in the variety–measurement time interaction (Table 2)
The potential leaf photosynthesis and maximal crop yield are in a highly positive correlation [20]. This indicates that photosynthesis at the single-leaf level can be an important factor for potential
Summary
Wheat (Triticum aestivum L.) is a major cereal crop grown in temperate climate areas. During crop production, both abiotic and biotic stresses occur, often acting in combinations under field conditions [1]. Among the most important diseases in wheat that significantly reduce wheat production are those caused by Fusarium species. Fusarium head blight (FHB), called ear blight or scab, is one of the most devastating fungal diseases of wheat and other small grain cereals and has caused serious epidemics worldwide [2]. Because of the complex nature of the host/pathogen/environment interactions, it is difficult to control FHB, and screening for biotic stress is a rather difficult and time-consuming process.
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