Investigating Genetic Basis of Resistance to Bacterial Panicle Blight of Rice Under Heat Stress Conditions.

Autor: Ortega, L., Patrick, C., Pereira, A., Rojas, C. M.
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Zdroj: B.R. Wells Rice Research Studies - Arkansas Agricultural Experiment Station, University of Arkansas System; Aug2020, Issue 667, p52-61, 5p
Abstrakt: Bacterial Panicle Blight (BPB), caused by the bacterium Burkholderia glumae has affected rice production in Arkansas. Burkholderia glumae causes disease symptoms at different developmental stages but the most devastating effects are observed in reproductive tissues because the bacteria interfere with grain development and consequently, panicles either have low weight grain or no grain. Field data has shown that the disease has been more prevalent in years when the temperatures have been unusually high, especially at night, possibly due to bacterial adaptation to grow at temperatures higher than 104 °F (40 °C). With the continuous rise in global temperatures, it is likely that this disease will be more problematic. Thus, there is an urgent need to develop commercial rice varieties with resistance to BPB even under conditions of heat stress. The development of such commercial rice varieties necessitates the identification of sources of resistance in the rice germplasm. This work presents the screening of a subset of rice accessions for resistance to B. glumae under conditions of heat stress. Further work is needed to identify genes responsible for those traits. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index