Identification of novel resources for panicle blast resistance from wild rice accessions and mutants of cv. Nagina 22 by syringe inoculation under field conditions

Kumar, Vikas; Singh, Pankaj Kumar; Karkute, Suhas Gorakh; Tasleem, Mohd; Bhagat, Someshwar; Abdin, M. Z.; Sevanthi, Amitha Mithra; Rai, Anil; Sharma, Tilak Raj; Singh, Nagendra; Solanke, Amolkumar U.

doi:10.1007/s13205-022-03122-5

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…Therefore, how to ensure food security has become a common concern of all countries in the world. Many fungal diseases inhibit the growth of rice, notably so rice blast disease caused by Magnaporthe oryzae [ 4 ], which reduces rice production by up to 30% annually around the world [ 5 ], which is enough rice for about 60 million people [ 6 ]. Fungal infection is a leading factor driving agricultural production shortfalls and in the dramatic growth in widespread lesions in immunosuppressed people [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Regulation of Autophagy Machinery in Magnaporthe oryzae

Asif

Feng

et al. 2022

IJMS

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Plant diseases cause substantial loss to crops all over the world, reducing the quality and quantity of agricultural goods significantly. One of the world's most damaging plant diseases, rice blast poses a substantial threat to global food security. Magnaporthe oryzae causes rice blast disease, which challenges world food security by causing substantial damage in rice production annually. Autophagy is an evolutionarily conserved breakdown and recycling system in eukaryotes that regulate homeostasis, stress adaption, and programmed cell death. Recently, new studies found that the autophagy process plays a vital role in the pathogenicity of M .oryzae and the regulation mechanisms are gradually clarified. Here we present a brief summary of the recent advances, concentrating on the new findings of autophagy regulation mechanisms and summarize some autophagy-related techniques in rice blast fungus. This review will help readers to better understand the relationship between autophagy and the virulence of plant pathogenic fungi.

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Section: Introductionmentioning

confidence: 99%

Regulation of Autophagy Machinery in Magnaporthe oryzae

Asif

Feng

et al. 2022

IJMS

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Application of Open Panicle Traits in Improving the Filling Characteristics at the Base of Indica Rice Panicles

Yang,

Wang,

Yang

et al. 2024

Plants

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Panicle-type structure is an important factor affecting rice yield, and an excellent panicle type has become a key indicator in rice breeding. In this study, the indica rice variety R766, which has an open panicle type, was obtained through natural mutation and hybrid selection. Through analyzing differences in panicle structure, panicle yield, and chemical composition between open panicle rice R766 and conventional panicle rice R2928, we found that the angles of the middle and lower branches in R766 were 186.99% and 135.93% greater than those in R2928, respectively. By comparing the grain-filling characteristics of different panicle positions in the two rice varieties, we found that the grain filling at the middle and lower panicle positions of R2928 was significantly lower, accompanied by an increase in the percentage of empty spikelets. However, in R766, the grain-filling rates in the middle and lower panicle positions were consistent with those in the upper panicle position, with significantly higher rates of grain filling and grain plumpness in the middle and lower panicle positions than in R2928. The empty grain rate at the lower panicle position of R766 was 15.25% lower than that of R2928, and the grain filling was 24.75% higher than that of R2928. Additionally, the variation in the 1000-grain weight of grains at different panicle positions in R766 was relatively small, with decreases of 1.55% and 0.38% in the middle and lower panicle positions, respectively, compared with the upper position, whereas R2928 showed decreases of 5.99% and 7.12% in the 1000-grain weight of grains at the middle and lower panicle positions, respectively, compared with the upper position. The cellulose content in the stems of R766 was 7.51% higher than that of R2928, with no significant difference in the cellulose content in the panicle axis and primary branches compared to R2928. The lignin content of the panicle axis in R766 was 8.03% higher than that in R2928, whereas there was no significant difference between the lignin content of the stems and primary branches. This preliminary study revealed the open panicle characteristics of R766 and the reasons for its high basal grain setting rate. This study provides a reference for promoting this open panicle-type indica rice variety to improve yield and disease resistance in environments with high humidity and low sunlight levels.

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Identification of novel resources for panicle blast resistance from wild rice accessions and mutants of cv. Nagina 22 by syringe inoculation under field conditions

Cited by 2 publications

References 34 publications

Regulation of Autophagy Machinery in Magnaporthe oryzae

Regulation of Autophagy Machinery in Magnaporthe oryzae

Application of Open Panicle Traits in Improving the Filling Characteristics at the Base of Indica Rice Panicles

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