Abstract
The biodiversity of agricultural pests and diseases has changed significantly due to climate change, posing an immense challenge to sustainable crop production. Finger millet, the third most important millet, is typically cultivated in arid, semi-arid, hilly and tribal provinces across Africa and Asia. However, its growth and yield are severely threatened by blast disease, a destructive condition caused by the filamentous ascomycete fungus Magnaporthe grisea. Because the pathogen produces rapidly evolving virulence genes, blast resistance frequently breaks down, leading to yield instability in all provinces where finger millet is cultivated. Blast disease is estimated to reduce yield by 28 %–36 % on average and in extreme cases, it can result in total crop loss. The disease affects the crop in three progressive stages: leaf blast, neck blast and finger blast. In comparison to leaf blast, the loss is higher in neck blast and finger blast, which drastically decrease grain size and number and in extreme cases, this results in total panicle sterility. In this current review, we emphasized the significance of finger millet and its susceptibility to blast disease, pathogen, field screening technique, genetic resources available at different research organizations involved in the advancement of finger millet in the world, genetic diversity of blast pathogen, conventional and molecular tools like transcriptome analysis and transgenesis that have been employed to increase finger millet's resistance to blast disease and explored prospective future paths for the creation of new blast-resistant finger millet cultivars.
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Claims 5
Claim · model-written summary
Blast disease is estimated to reduce finger millet yield by 28% to 36% on average.
- Taxon
- Finger millet
Eleusine coracanae0 - Interactor
- Magnaporthe grisea
Pyricularia griseae2pathogen - Outcome
- yielde1
- Direction
- reducee1
- Value
- 28 %–36 %e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finger millet, the third most important millet”
e1“Blast disease is estimated to reduce yield by 28 %–36 % on average”
e2“caused by the filamentous ascomycete fungus Magnaporthe grisea”
Claim · model-written summary
Blast can cause total crop loss of finger millet in extreme cases.
- Taxon
- Finger milletEleusine coracanae0
- Outcome
- total crop losse1
- Qualifier
- in extreme casese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finger millet, the third most important millet”
e1“in extreme cases, it can result in total crop loss”
Claim · model-written summary
The loss from blast is higher in neck blast and finger blast than in leaf blast.
- Taxon
- Finger milletEleusine coracanae0
- Organ / stage
- neck blaste1
- Outcome
- losse1
- Direction
- highere1
- Comparator
- leaf blaste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finger millet, the third most important millet”
e1“In comparison to leaf blast, the loss is higher in neck blast and finger blast, which drastically decrease grain size and number”
Claim · model-written summary
Neck blast and finger blast drastically decrease grain size and number of finger millet.
- Taxon
- Finger milletEleusine coracanae0
- Treatment
- neck blast and finger blaste1
- Outcome
- grain size and numbere1
- Direction
- decreasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finger millet, the third most important millet”
e1“In comparison to leaf blast, the loss is higher in neck blast and finger blast, which drastically decrease grain size and number”
Claim · model-written summary
In extreme cases, blast results in total panicle sterility of finger millet.
- Taxon
- Finger milletEleusine coracanae0
- Outcome
- total panicle sterilitye2
- Qualifier
- in extreme casese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finger millet, the third most important millet”
e2“in extreme cases, this results in total panicle sterility”