Annual Review of Phytopathology (2005) 43, 83-116

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Richard N. Strange and Peter R. Scott (2005)
Plant disease: A threat to global food security
Annual Review of Phytopathology 43, 83-116
Abstract: A vast number of plant pathogens from viroids of a few hundred nucleotides to higher plants cause diseases in our crops. Their effects range from mild symptoms to catastrophes in which large areas planted to food crops are destroyed. Catastrophic plant disease exacerbates the current deficit of food supply in which at least 800 million people are inadequately fed. Plant pathogens are difficult to control because their populations are variable in time, space, and genotype. Most insidiously, they evolve, often overcoming the resistance that may have been the hard-won achievement of the plant breeder. In order to combat the losses they cause, it is necessary to define the problem and seek remedies. At the biological level, the requirements are for the speedy and accurate identification of the causal organism, accurate estimates of the severity of disease and its effect on yield, and identification of its virulence mechanisms. Disease may then be minimized by the reduction of the pathogen's inoculum, inhibition of its virulence mechanisms, and promotion of genetic diversity in the crop. Conventional plant breeding for resistance has an important role to play that can now be facilitated by marker-assisted selection. There is also a role for transgenic modification with genes that confer resistance. At the political level, there is a need to acknowledge that plant diseases threaten our food supplies and to devote adequate resources to their control.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Richard N. Strange

Research topic(s) for pests/diseases/weeds:
damage/losses/economics


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Phytophthora infestans Potato (Solanum tuberosum)
Barley yellow dwarf viruses Barley (Hordeum vulgare)
Barley yellow dwarf viruses Maize/corn (Zea mays)
Barley yellow dwarf viruses Oat (Avena sativa)
Barley yellow dwarf viruses Rye (Secale cereale)
Barley yellow dwarf viruses Wheat (Triticum)
Barley yellow dwarf viruses Rice (Oryza)
Blumeria graminis Barley (Hordeum vulgare)
Blumeria graminis Oat (Avena sativa)
Blumeria graminis Rye (Secale cereale)
Blumeria graminis Wheat (Triticum)
Rhynchosporium commune Barley (Hordeum vulgare)
Rhynchosporium secalis Rye (Secale cereale)
Puccinia striiformis Wheat (Triticum)
Puccinia coronata Oat (Avena sativa)
Puccinia graminis Oat (Avena sativa)
Puccinia graminis Rye (Secale cereale)
Puccinia graminis Wheat (Triticum)
Pyrenophora teres Barley (Hordeum vulgare)
Pyrenophora graminea Barley (Hordeum vulgare)
Parastagonospora nodorum Rye (Secale cereale)
Parastagonospora nodorum Wheat (Triticum)
Zymoseptoria tritici Wheat (Triticum)
Potato virus Y Potato (Solanum tuberosum)
African cassava mosaic virus Cassava (Manihot esculenta)
East African cassava mosaic virus Cassava (Manihot esculenta)
Bean yellow mosaic virus Soybean (Glycine max)
Athelia rolfsii Wheat (Triticum)
Spiroplasma kunkelii Maize/corn (Zea mays)
Rice tungro spherical virus Rice (Oryza)
Rice tungro bacilliform virus Rice (Oryza)
Streptomyces scabiei Potato (Solanum tuberosum)
Rhizoctonia solani Potato (Solanum tuberosum)
Rhizoctonia solani Rye (Secale cereale)
Rhizoctonia solani Rice (Oryza)
Ceratocystis fimbriata Sweet potato (Ipomoea batatas)
Colletotrichum manihotis Cassava (Manihot esculenta)
Colletotrichum gloeosporioides Yam (Dioscorea)
Lasiodiplodia theobromae Sweet potato (Ipomoea batatas)
Pyrenophora tritici-repentis Wheat (Triticum)
Maize streak virus Maize/corn (Zea mays)
Maize streak virus Sorghum (crop)
Colletotrichum truncatum Soybean (Glycine max)
Colletotrichum truncatum Lentil (Lens culinaris)
Pyricularia oryzae Rice (Oryza)
Bipolaris sorokiniana Barley (Hordeum vulgare)
Bipolaris sorokiniana Wheat (Triticum)
Potato leafroll virus Potato (Solanum tuberosum)
Puccinia recondita Rye (Secale cereale)
Puccinia purpurea Sorghum (crop)
Bipolaris maydis Maize/corn (Zea mays)
Pantoea stewartii Maize/corn (Zea mays)
Mycosarcoma maydis Maize/corn (Zea mays)
Fusarium graminearum Barley (Hordeum vulgare)
Fusarium graminearum Maize/corn (Zea mays)
Diaporthe phaseolorum Soybean (Glycine max)
Cercospora kikuchii Soybean (Glycine max)
Macrophomina phaseolina Sorghum (crop)
Soybean mosaic virus Soybean (Glycine max)
Xanthomonas oryzae Rice (Oryza)
Oculimacula yallundae Rye (Secale cereale)
Colletotrichum graminicola Oat (Avena sativa)
Colletotrichum graminicola Sorghum (crop)
Phakopsora pachyrhizi Soybean (Glycine max)
Clavibacter michiganensis Potato (Solanum tuberosum)
Potato virus X Potato (Solanum tuberosum)
Alternaria solani Potato (Solanum tuberosum)
Ascochyta lentis Lentil (Lens culinaris)
Microdochium nivale Oat (Avena sativa)
Microdochium nivale Rye (Secale cereale)
Parastagonospora avenae Oat (Avena sativa)
Ditylenchus dipsaci Rye (Secale cereale)
Claviceps purpurea Rye (Secale cereale)
Pyrenophora avenae Oat (Avena sativa)
Exserohilum turcicum Maize/corn (Zea mays)
Exserohilum turcicum Sorghum (crop)
Ustilago nuda Wheat (Triticum)
Ralstonia solanacearum Potato (Solanum tuberosum)
Xanthomonas translucens Wheat (Triticum)
Sclerospora graminicola Pearl millet (Cenchrus americanus)
Sclerospora graminicola Setaria (crop)
Sclerospora graminicola Panicum (crop)
Bipolaris oryzae Rice (Oryza)
Sweet potato feathery mottle virus Sweet potato (Ipomoea batatas)
Maize chlorotic dwarf virus Maize/corn (Zea mays)
Peronosclerospora sorghi Sorghum (crop)
Ustilago avenae Oat (Avena sativa)
Peronospora manshurica Soybean (Glycine max)
Fusarium oxysporum f.sp. lentis Lentil (Lens culinaris)
Epicoccum sorghinum Sorghum (crop)
Streptomyces ipomoeae Sweet potato (Ipomoea batatas)
Phytophthora erythroseptica Potato (Solanum tuberosum)
Phytoplasma aurantifolia Sweet potato (Ipomoea batatas)
Uromyces viciae-fabae Lentil (Lens culinaris)
Oat golden stripe virus Oat (Avena sativa)
Curvularia lunata Sorghum (crop)
Gloeocercospora sorghi Sorghum (crop)
Barley stripe mosaic virus Barley (Hordeum vulgare)
Xanthomonas axonopodis pv. manihotis Cassava (Manihot esculenta)
Xanthomonas phaseoli Soybean (Glycine max)
Yam mosaic virus Yam (Dioscorea)
Yam mild mosaic virus Yam (Dioscorea)
Claviceps sorghicola Sorghum (crop)
Claviceps fusiformis Pearl millet (Cenchrus americanus)
Puccinia triticina Wheat (Triticum)
Oat mosaic virus Oat (Avena sativa)
Indian cassava mosaic virus Cassava (Manihot esculenta)
Pseudomonas coronafaciens Oat (Avena sativa)
Ustilago hordei Oat (Avena sativa)
Pectobacterium atrosepticum Potato (Solanum tuberosum)
Pyricularia setariae Eleusine (crop)
Pyricularia setariae Setaria (crop)
Curvularia nodulosa Eleusine (crop)
Uromyces setariae-italicae Setaria (crop)
Ustilago crameri Setaria (crop)
Uromyces eragrostidis Teff (Eragrostis tef)
Curvularia miyakei Teff (Eragrostis tef)
Phyllachora sacchari Sorghum (crop)
Elsinoë batatas Sweet potato (Ipomoea batatas)
Fusarium oxysporum
Xanthomonas axonopodis
Pseudomonas syringae