Biotic stresses and their management

Arumugam, Natarajan; Chethana, B. S.; Jain, Akanksha

doi:10.1016/b978-0-12-820089-6.00007-0

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…In addition to infecting maize and sweet corn, MCMV, MDMV, SCMV and WSMV also cause diseases in other cereal crops when present in single infections, including barley, pearl millet, sorghum and wheat (MCMV), oats, pearl millet and sorghum (MDMV), sorghum (SCMV), and barley and wheat (WSMV) [103]. The most damaging of these virus-cereal pathosystems include WSMV in wheat which already occurs in Australia (see Section 3.2 above), and MDMV in maize, sweet corn and sorghum [322], both of which pathosystems are not yet found in the country. Moreover, as MDMV causes the most important and damaging virus disease of sorghum worldwide [322], its establishment would be cause for particular concern for this crop.…”

Section: Biosecurity Threatsmentioning

confidence: 99%

“…The most damaging of these virus-cereal pathosystems include WSMV in wheat which already occurs in Australia (see Section 3.2 above), and MDMV in maize, sweet corn and sorghum [322], both of which pathosystems are not yet found in the country. Moreover, as MDMV causes the most important and damaging virus disease of sorghum worldwide [322], its establishment would be cause for particular concern for this crop. In addition, the establishment within Australia of maize rough dwarf virus (MRDV, genus Fijivirus, family Reoviridae) and maize streak mosaic virus (MSMV; genus Mastrevirus, family Geminiviridae) would also be of considerable concern for Australian maize and sweet corn production since both cause major losses in these crops in other parts of the world (Table 4) [7].…”

Section: Biosecurity Threatsmentioning

confidence: 99%

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Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Jones

Sharman

Trębicki

et al. 2021

Viruses

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This review summarizes research on virus diseases of cereals and oilseeds in Australia since the 1950s. All viruses known to infect the diverse range of cereal and oilseed crops grown in the continent’s temperate, Mediterranean, subtropical and tropical cropping regions are included. Viruses that occur commonly and have potential to cause the greatest seed yield and quality losses are described in detail, focusing on their biology, epidemiology and management. These are: barley yellow dwarf virus, cereal yellow dwarf virus and wheat streak mosaic virus in wheat, barley, oats, triticale and rye; Johnsongrass mosaic virus in sorghum, maize, sweet corn and pearl millet; turnip yellows virus and turnip mosaic virus in canola and Indian mustard; tobacco streak virus in sunflower; and cotton bunchy top virus in cotton. The currently less important viruses covered number nine infecting nine cereal crops and 14 infecting eight oilseed crops (none recorded for rice or linseed). Brief background information on the scope of the Australian cereal and oilseed industries, virus epidemiology and management and yield loss quantification is provided. Major future threats to managing virus diseases effectively include damaging viruses and virus vector species spreading from elsewhere, the increasing spectrum of insecticide resistance in insect and mite vectors, resistance-breaking virus strains, changes in epidemiology, virus and vectors impacts arising from climate instability and extreme weather events, and insufficient industry awareness of virus diseases. The pressing need for more resources to focus on addressing these threats is emphasized and recommendations over future research priorities provided.

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Section: Biosecurity Threatsmentioning

confidence: 99%

Section: Biosecurity Threatsmentioning

confidence: 99%

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Jones

Sharman

Trębicki

et al. 2021

Viruses

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“…For rural residents in the drier parts of the country, it is their primary dietary energy source. From the vantage points of production, consumption, and trade, it is notable that the Ministry of Agriculture and Farmers Welfare of the Government of India has categorized it as "Nutri-Cereals" [3]. It is a plentiful source of many good nutrients, including iron, zinc, folic acid, beta-carotene, and protein.…”

Section: Introductionmentioning

confidence: 99%

A Review of: Epidemiology and Management Practices of Fungal and Bacterial Diseases of Pearl Millet [Pennisetum glaucum (L.) R. Br.]

Khorwal

Sharma

Agrawal

2023

AJOB

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Economic significance of pearl millet has recently received more attention than ever, especially in light of the great nutritional value of gluten-free diets for people with celiac disease. The most major diseases afflict pearl millet include smut, ergot, rust, leaf blast, and green ear disease/downy mildew, despite many new varieties being created throughout the years. Nevertheless, to effectively control them and maximize the crop's economic production, diseases like leaf blast, rust, smut, bacterial leaf spot, stripe, and strike also require early attention. Result, comprehensive data has been gathered in this review within the categories of a etiology, epidemiology, and management practices. The goal of this review is to know the status of pearl millet diseasesis adequately understood, and their correct present management approaches and the need for prospects is underlined.

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“…Br. ), a member of the family Poaceae [ 5 , 7 , 8 ]. The blast disease incited by filamentous ascomycete fungus, Magnaporthe grisea (T.T.…”

Section: Introductionmentioning

confidence: 99%

Structured Framework and Genome Analysis of Magnaporthe grisea Inciting Pearl Millet Blast Disease Reveals Versatile Metabolic Pathways, Protein Families, and Virulence Factors

Reddy

Mehta

Prakash

et al. 2022

JoF

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Magnaporthe grisea (T.T. Herbert) M.E. Barr is a major fungal phytopathogen that causes blast disease in cereals, resulting in economic losses worldwide. An in-depth understanding of the basis of virulence and ecological adaptation of M. grisea is vital for devising effective disease management strategies. Here, we aimed to determine the genomic basis of the pathogenicity and underlying biochemical pathways in Magnaporthe using the genome sequence of a pearl millet-infecting M. grisea PMg_Dl generated by dual NGS techniques, Illumina NextSeq 500 and PacBio RS II. The short and long nucleotide reads could be draft assembled in 341 contigs and showed a genome size of 47.89 Mb with the N50 value of 765.4 Kb. Magnaporthe grisea PMg_Dl showed an average nucleotide identity (ANI) of 86% and 98% with M. oryzae and Pyricularia pennisetigena, respectively. The gene-calling method revealed a total of 10,218 genes and 10,184 protein-coding sequences in the genome of PMg_Dl. InterProScan of predicted protein showed a distinct 3637 protein families and 695 superfamilies in the PMg_Dl genome. In silico virulence analysis revealed the presence of 51VFs and 539 CAZymes in the genome. The genomic regions for the biosynthesis of cellulolytic endo-glucanase and beta-glucosidase, as well as pectinolytic endo-polygalacturonase, pectin-esterase, and pectate-lyases (pectinolytic) were detected. Signaling pathways modulated by MAPK, PI3K-Akt, AMPK, and mTOR were also deciphered. Multicopy sequences suggestive of transposable elements such as Type LTR, LTR/Copia, LTR/Gypsy, DNA/TcMar-Fot1, and Type LINE were recorded. The genomic resource presented here will be of use in the development of molecular marker and diagnosis, population genetics, disease management, and molecular taxonomy, and also provide a genomic reference for ascomycetous genome investigations in the future.

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Biotic stresses and their management

Cited by 4 publications

References 18 publications

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

A Review of: Epidemiology and Management Practices of Fungal and Bacterial Diseases of Pearl Millet [Pennisetum glaucum (L.) R. Br.]

Structured Framework and Genome Analysis of Magnaporthe grisea Inciting Pearl Millet Blast Disease Reveals Versatile Metabolic Pathways, Protein Families, and Virulence Factors

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