Role of silicon in elevating resistance against sheath blight and blast diseases in rice (Oryza sativa L.).

Rice blast caused by Magnaporthe oryzae and sheath blight caused by Rhizoctonia solani, are the two major diseases of rice that cause enormous losses in rice production worldwide. Identification and utilization of broad-spectrum resistance resources have been considered sustainable and effective strategies. However, the majority of the resistance genes and QTLs identified have often been found to be race-specific, and their resistance is frequently broken down due to continuous exposure to the pathogen.

Identification and characterization of a spotted-leaf mutant spl40 with enhanced bacterial blight resistance in rice.

Background: Spotted leaf mutants show typical necrotic lesions that appear spontaneously in the absence of any pathogen attack. These mutants are often characterized to exhibit programmed cell death (PCD) and activation of plant defense responses resulting in enhanced disease resistance to multiple pathogens. Here, we reported a novel spotted-leaf mutant, spl40 that showed enhanced disease resistance response.

Identification of a Novel Semi-Dominant Spotted-Leaf Mutant with Enhanced Resistance to pv. in Rice.

Many spotted-leaf mutants show enhanced disease resistance to multiple pathogen attacks; however, the mechanisms are largely unknown. Here, we reported a novel semi-dominant () obtained from an ethyl methane sulfonate (EMS)-induced IR64 mutant bank. developed tiny brown lesions on the leaf tip and spread down gradually to the leaf base as well as the sheath at the early heading stage.

A substitution mutation in OsPELOTA confers bacterial blight resistance by activating the salicylic acid pathway.

We previously reported a spotted-leaf mutant pelota (originally termed HM47) in rice displaying arrested growth and enhanced resistance to multiple races of Xanthomonas oryzae pv. oryzae. Here, we report the map-based cloning of the causal gene OsPELOTA (originally termed spl ).