Pathogenicity of Cytospora Fungi on Six Hardwood Species

Kepley, J. B.; Jacobi, William R.

doi:10.48044/jauf.2000.040

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…In the greenhouse and field trials, there was a clear overall treatment effect whereby trees under irrigation deficits had significantly larger lesion volumes after inoculation with Cytospora plurivora , suggesting that drought stress enhances peach susceptibility. Previous studies have documented similar drought stress effects on plants inoculated with Cytospora species ( Guyon et al., 1996 ; Kepley and Jacobi, 2000 ; McIntyre et al., 1996 ). Bolboli et al.…”

Section: Discussionsupporting

confidence: 54%

The role of stress factors in severity of Cytospora plurivora in greenhouse and field plantings of 13 peach (Prunus persica) cultivars

Miller,

Wright,

Stewart

2023

Front. Plant Sci.

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Understanding the host–pathogen–environmental interactions in a pathosystem is essential for management of diseases and diminished crop yields. Abiotic stressors such as cold damage, water deficit, and high pH soils can be major limiting factors to tree fruit production. Along with decreased yields, these abiotic factors can have direct implications for disease severity within orchards. Cytospora plurivora is a ubiquitous fungal canker pathogen in western Colorado, USA and is a major focus in integrated pest management strategies. This research evaluated the influence of biotic and abiotic stress factors on peach tree health. Thirteen peach cultivars were placed under abiotic stress and inoculated with C. plurivora in greenhouse and field conditions. Under deficit irrigation, C. plurivora infections were significantly larger and more severe in both the greenhouse and field trials when compared with those under the full-irrigation controls. In controlled greenhouse conditions, a positive correlation between lesion size and water potential was evident, but no trend of cultivar tolerance was observed. Furthermore, increase in irrigation water pH, through additions of sodium carbonate and bicarbonate, in the greenhouse trials resulted in decreased leaf water potentials and increased pathogen necrotic tissue volumes (mm3). In field trials, there was no positive relationship between lesion size and water potential; trees with the most negative water potentials had the smallest lesions sizes that did not correspond to cultivar, suggesting that other abiotic or biotic factors may be shielding water stressed trees from increased pathogen aggression. This research highlights the importance of proper irrigation and soil pH management as tools for the management of Cytospora canker in peach orchards.

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Section: Discussionsupporting

confidence: 54%

The role of stress factors in severity of Cytospora plurivora in greenhouse and field plantings of 13 peach (Prunus persica) cultivars

Miller,

Wright,

Stewart

2023

Front. Plant Sci.

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“…Cytospora species are important plant pathogens causing severe canker diseases worldwide and having a broad host range (Osipan and Martirosian, 1984;Fan et al, 2015). Several Cytospora species are known as causes of cankers on woody hosts, including various fruit crops (Fan et al, 2015;Kepley and Jacobi, 2000).…”

Section: Stem Cankermentioning

confidence: 99%

Sea Buckthorn Diseases Caused by Pathogenic Fungi

Drevinska

Moročko‐Bičevska

2022

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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Sea buckthorn (Hippophae rhamnoides L.) is a native species in various regions of Asia and Europe. It is cultivated as a multipurpose horticultural species in northern temperate regions of Europe, Asia, and North America with large economic potential used for food, pharmacology, cosmetics, and environmental conservation. Diseases in natural populations and managed landscapes have increased, endangering sea buckthorn growth and cultivation worldwide. This review article focuses on sea buckthorn canker, wilt and decline diseases caused by pathogenic fungi, their distribution, hosts of involved pathogenic fungi and symptoms. Published information on sea buckthorn fungal diseases is available only about a few diseases, such as wilt (Verticillium dahliae), the dried-shrink disease caused by various fungi and abiotic factors, and stem canker (Hymenopleella hippophaeicola, Cytospora spp., Stigmina sp.). Some fungi reported on sea buckthorn are poorly studied, or the sea buckthorn is a newly discovered host, as in the case of Eutypa spp. The most often reported symptoms of these diseases are cankers and cracks on trunks and main branches, dead buds and leaves, necrosis of various tissues on branches, and root necrosis, resulting in the death of the shrubs. In general, the fungal diseases on sea buckthorn are not sufficiently addressed, and more research is needed.

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“…and Malus spp. in commercial orchards (Biggs 1989, Kepley et al 2000. Cytospora are the anamorphs of the ascomycete genus Valsa Fr.…”

Section: Introductionmentioning

confidence: 99%

Morphological And Molecular Characterization Of Cytospora Spp. Of Economic Forests And Shelterbelt In Xinjiang

et al. 2023

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Cytospora species are found in Xinjiang with stem canker disease. Cytospora species were identified based on morphological characteristics and molecular biology from economic forests and shelter belt in Xinjiang. A total of 281 isolates were obtained from woods canker of 17 hosts in Xinjiang. The strains identified were Valsa mali (anamorph: Cytospora sacculus), Valsa sordida (anamorph: Cytospora chrysosperma), Valsa macolica (anamorph: Cytospora schulzeri), Leucostoma niveum (anamorph: Cytospora nivea) and Cryptosphaeria pullmanensis (anamorph: Cytosporina pullmanensis). The V. mali and V. sordida wwere the main pathogens of economic forest and shelter forest, respectively. It is also hoped that this will lead to improve management strategies for diseases associated with these fungi. Bangladesh J. Bot. 51(4): 1029-1037, 2022 (December) Special

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Pathogenicity of Cytospora Fungi on Six Hardwood Species

Cited by 9 publications

References 9 publications

The role of stress factors in severity of Cytospora plurivora in greenhouse and field plantings of 13 peach (Prunus persica) cultivars

The role of stress factors in severity of Cytospora plurivora in greenhouse and field plantings of 13 peach (Prunus persica) cultivars

Sea Buckthorn Diseases Caused by Pathogenic Fungi

Morphological And Molecular Characterization Of Cytospora Spp. Of Economic Forests And Shelterbelt In Xinjiang

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