First Report of Alternaria Black Spot of Rose Caused by <i>Alternaria alternata</i> in Pakistan

Abbas, Muhammad Fahim; Azizuddin, -; Rafique, Khola; Qadir, Abdul; Rashid, A.; Qamar, Misbah Iqbal; Rafiq, Muhammad

doi:10.1094/pdis-04-17-0578-pdn

Cited by 10 publications

(6 citation statements)

References 3 publications

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“…In India, spots on the leaves of roses have been described as caused by Alternaria spp. The injuries caused by this fungus on the cultivated species of roses have been recognized as having great economic importance (Abbas et al, 2017). In all the years of the experiment, the yew shrubs grown in the substrate inoculated with A. alternata grew very poorly.…”

Section: Resultsmentioning

confidence: 99%

Effectiveness of mycorrhizal fungi in the protection of juniper, rose, yew and highbush blueberry against Alternaria alternata

Mazur

Nadziakiewicz

Kurzawińska

et al. 2019

Folia Horticulturae

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After conducting two-year observations in nurseries in the Małopolska province, Poland, the species of shrubs on which symptoms of discoloration and withering of the leaves/needles and shoots, and sometimes of whole plants, occurred most frequently were selected for further study. The species included juniper (Juniperus horizontalis ‘Wiltonii’, rose (Rosa ‘Star Profusion’), yew (Taxus × media ‘Hillii’) and highbush blueberry (Vaccinum corymbosum ‘Patriot’). The predominant fungus isolated from the diseased plants was Alternaria alternata (Fr.) Keissl. A pathogenicity test performed in the laboratory confirmed the pathogenic effects of A. alternata on all of the tested species of shrubs. In 2011-2014, a field experiment was conducted with A. alternata inoculum introduced into the growth substrate. The presence of the pathogen reduced considerably the annual growth of all the shrubs tested. The applied mycorrhizal inocula had an effect on some morphological characteristics of plants, such as height and number of shoots. Moreover, the plants whose roots had been treated with the mycorrhizal inocula and were grown in the substrate inoculated with the pathogen also achieved greater increases in growth in comparison with the plants treated with the pathogen as well as relative to the control. The protective role of mycorrhizal inocula against the damaging effects of the pathogen was evident in all the species of shrubs.

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Section: Resultsmentioning

confidence: 99%

Effectiveness of mycorrhizal fungi in the protection of juniper, rose, yew and highbush blueberry against Alternaria alternata

Mazur

Nadziakiewicz

Kurzawińska

et al. 2019

Folia Horticulturae

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“…Ornamental plants, including roses, are among the plants that have significant commercial and economic value. Including perfumes, oils, rose syrup, and herbal tea has a significant role in the economic field [3,4]. Ornamental plants are exposed to many diseases resulting from infection with fungi or other microorganisms, including viruses, nematodes, bacteria and phytoplasma, which cause symptoms that lead to distortion of the plant's external appearance and as a result, this negatively affects the beauty of its appearance and sometimes leads to the death of the entire plant.…”

Section: Introductionmentioning

confidence: 99%

Morphological and molecular identification study of rose and lantana fungal leaf spot pathogens

Yaser

2022

basjs

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The fungi were isolated from diseased leaves of ornamental plants such as Rosa hybrid and Lantana camara. All symptomatic leaves with leaf spot infections were collected and transported to the lab for morphological and molecular diagnosis. The isolation findings revealed that each fungus, Alternaria alternata, Fusarium chlamydosporum, and Botrytis cinerea, was isolated from each studied plant. The genetic study revealed the identities of each fungus as follows: a 100% identity for both A. alternata and B. cinerea, and a proportion of 99.60% similarity with F. chlamydosporum. The pathogenicity test results revealed that the fungus A. alternata had the highest level of pathogenicity in terms of disease percentage and disease severity, which were 83.34 and 64.50% on the rose plant, respectively, and 83.34 and 66.25% on the lantana plant, respectively; followed by B. cinerea with 66.67 and 41.50% on the rose plant, respectively, and F. chlamydosporum with 50 and 31.25% on the rose plant The current study suggests looking for acceptable and effective therapies to prevent the spread of certain forms of fungus.

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“…Fungal pathogens which have been reported to cause diseases in rose plant are Passalorarosicola caused leaf spot of rose (Feres et al, 2017), Cercospora leaf spot (Hagan et al, 2005), Diplocarponrosae caused black spot of roses (Khatun et al, 2009), Podosphaerapannosa caused powdery mildew (Yi et al, 2019) brown canker (Islam et al, 2010) and downy mildew (Shamsi and Ghosh, 2014). Recently, Alternaria alternatahas been reported for the first time in Pakistan to cause leaf spot disease of rose (Abbas et al, 2017). A. alternate (Fr.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of different fungicides for the control of Alternaria leaf spot of roses caused by “Alternaria alternata”

Khalid

2022

P. Bulletin

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Rose (Rosa indica L) is important plant uses worldwide in medical, cosmetic, happy events, celebrations and food tonic supplement. Fungal diseases (powedery mildew, anthracnose, rust, root rots, Alternaria black spot, cercospora leaf spot and grey mold) are well known for threat to cultivation of rose plant for commercial scale. Among them Alternaria black spot disease is the most dangerous one. Present study was done in the field area of College of Agriculture, Bhadur sub.campus Layyah in 2019 using RCBD 3 factorial design. The study was carried out to evaluate and to check efficacy of five fungicides (Ridomil Gold, Companion, Acrobat MZ, Dodine and Myclobutanil) to control the disease at different concentration and days. Results indicate that disease is effectively controlled by Ridomil Gold (17.68%) followed by Acrobat MZ (24.35%), Myclobutanil (34.69%), Companion (49.72%) while Dodine showed least efficacy (44.84%) over control (73.54 %). Ridomil gold can be used to control Alternaria black spot of rose.

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First Report of Alternaria Black Spot of Rose Caused by Alternaria alternata in Pakistan

Cited by 10 publications

References 3 publications

Effectiveness of mycorrhizal fungi in the protection of juniper, rose, yew and highbush blueberry against Alternaria alternata

Effectiveness of mycorrhizal fungi in the protection of juniper, rose, yew and highbush blueberry against Alternaria alternata

Morphological and molecular identification study of rose and lantana fungal leaf spot pathogens

Evaluation of different fungicides for the control of Alternaria leaf spot of roses caused by “Alternaria alternata”

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