Characterization of <i>Alternaria</i> species associated with black spot of strawberry in Beijing municipality of China

Fu, Yu; Zhang, Xiaofang; Liu, Shijiahui; Hu, Kelin; Wu, Xuehong

doi:10.1080/07060661.2019.1662851

Cited by 17 publications

(3 citation statements)

References 27 publications

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“…Root-knot nematodes also feed and multiply on many garden weeds. Similarly, A. alternata is one of the most prevalent phytopathogen that is responsible for causing different necrotic diseases in plants including black spot of strawberry (Fu et al 2020) and Japanese pear, citrus brown spot on tangerine and grapefruit (Wu et al 2020), leaf spot of lemon, brown spot of tobacco (Hatta et al 2002;Jing et al 2018) and leaf spot of W. somnifera (Singh et al 2020). Among them, leaf spot disease in W. somnifera leads to huge loss in overall yield of plant.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive analysis of codon usage pattern in Withania somnifera and its associated pathogens: Meloidogyne incognita and Alternaria alternata

et al. 2022

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Meloidogyne incognita (Root-knot nematode) and Alternaria alternata (fungus) were among the dominant parasites of the medicinal plant Withania somnifera. Despite the fatal nature of their infection, a comprehensive study to explore their evolution and adaptation is lacking. The present study elucidates evolutionary and codon usage bias analysis of W. somnifera (host plant), M. incognita (root-knot nematode) and A. alternata (fungal parasite). The results of the present study revealed a weak codon usage bias prevalent in all the three organisms. Based on the nucleotide analysis, genome of W. somnifera and M. incognita was found to be A-T biased while A. alternata had GC biased genome. We found high similarity of CUB pattern between host and its nematode pathogen as compared to the fungal pathogen. Inclusively, both the evolutionary forces influenced the CUB in host and its associated pathogens. However, neutrality plot indicated the pervasiveness of natural selection on CUB of the host and its pathogens. Correspondence analysis revealed the dominant effect of mutation on CUB of W. somnifera and M. incognita while natural selection was the main force affecting CUB of A. alternata. Taken together the present study would provide some prolific insight into the role of codon usage bias in the adaptability of pathogens to the host’s environment for establishing parasitic relationship.

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Section: Discussionmentioning

confidence: 99%

Comprehensive analysis of codon usage pattern in Withania somnifera and its associated pathogens: Meloidogyne incognita and Alternaria alternata

et al. 2022

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“…In addition, at least 14 fungal pathogen taxa were identified in the F. nilgerrensis and Akihime samples. For the nonrhizosphere soils samples, the relative abundances of Fungal pathogen taxa including Fusarium incarnatum ( Ayoubi and Soleimani, 2016 ), Neopestalotiopsis clavispora ( Gilardi et al, 2019 ) and Alternaria tenuissima ( Fu et al, 2019 ) in Akihime samples were significantly higher than those in F. nilgerrensis samples ( p < 0.05) ( Figure 6A ). For the rhizosphere soil samples, the relative abundances of Fusarium incarnatum and Neopestalotiopsis clavispora in Akihime samples were significantly higher than those in F. nilgerrensis samples ( p < 0.05), while the relative abundance of Curvularia trifolii ( Zhang et al, 2022b ) was significantly lower than that in F. nilgerrensis samples ( p < 0.05) ( Figure 6B ); For the root endosphere samples, the relative abundances of Fusarium incarnatum, Rhizoctonia fragariae ( Erper et al, 2021 ), Dactylonectria pauciseptata and Dactylonectria torresensis ( Chen et al, 2021 ) in the Akihime samples were significantly higher than in the samples of F. nilgerrensis , while the relative abundances of Alternaria tenuissima, Gnomoniopsis fragariae ( Fang et al, 2011 ) were significantly lower than those in the F. nilgerrensis samples ( Figure 6C ).…”

Section: Resultsmentioning

confidence: 99%

Comparative analysis of the microbiomes of strawberry wild species Fragaria nilgerrensis and cultivated variety Akihime using amplicon-based next-generation sequencing

Wang,

Dai,

et al. 2024

Front. Microbiol.

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Fragaria nilgerrensis is a wild strawberry species widely distributed in southwest China and has strong ecological adaptability. Akihime (F. × ananassa Duch. cv. Akihime) is one of the main cultivated strawberry varieties in China and is prone to infection with a variety of diseases. In this study, high-throughput sequencing was used to analyze and compare the soil and root microbiomes of F. nilgerrensis and Akihime. Results indicate that the wild species F. nilgerrensis showed higher microbial diversity in nonrhizosphere soil and rhizosphere soil and possessed a more complex microbial network structure compared with the cultivated variety Akihime. Genera such as Bradyrhizobium and Anaeromyxobacter, which are associated with nitrogen fixation and ammonification, and Conexibacter, which is associated with ecological toxicity resistance, exhibited higher relative abundances in the rhizosphere and nonrhizosphere soil samples of F. nilgerrensis compared with those of Akihime. Meanwhile, the ammonia-oxidizing archaea Candidatus Nitrososphaera and Candidatus Nitrocosmicus showed the opposite tendencies. We also found that the relative abundances of potential pathogenic genera and biocontrol bacteria in the Akihime samples were higher than those in the F. nilgerrensis samples. The relative abundances of Blastococcus, Nocardioides, Solirubrobacter, and Gemmatimonas, which are related to pesticide degradation, and genus Variovorax, which is associated with root growth regulation, were also significantly higher in the Akihime samples than in the F. nilgerrensis samples. Moreover, the root endophytic microbiomes of both strawberry species, especially the wild F. nilgerrensis, were mainly composed of potential biocontrol and beneficial bacteria, making them important sources for the isolation of these bacteria. This study is the first to compare the differences in nonrhizosphere and rhizosphere soils and root endogenous microorganisms between wild and cultivated strawberries. The findings have great value for the research of microbiomes, disease control, and germplasm innovation of strawberry.

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“…Alternaria leaf spot is frequently occurring disease of strawberries worldwide (Cho et al 1980, Fu et al 2019, Mehmood et al 2018, Wassenear and Scheer 1989 and it is also known in Turkey (Sarıgül Ertek et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Occurrence of fungal strawberry diseases in Central Anatolia Region of Turkey and reactions of some varieties grown widely against the important pathogens

Ertek¹

2022

Bitki Koruma Bülteni

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2013-2016 yılları arasında Bartın, Kayseri, Konya, Zonguldak illeri çilek üretim alanlarında sorun olan çilek fungal hastalıkların tespiti ve yaygın olan fungal patojene karşı mücadele olanaklarının araştırılması hedeflenmiştir. Bu amaçlar doğrultusunda Bartın, Kayseri, Konya, Zonguldak illerinden alınan 515,5 dekar çilek yetiştirme alanlarından hastalıklı bitki örnekleri toplanarak laboratuvara getirilmiş ve bu örnekler uygun besi ortamlarına ekilerek fungal patojenler izole edilmiştir. Çeşitli arazilerden toplanan 383 adet yaprak ve kök örneklerinden fungal etmenler izole edilmiştir. 17 fungal patojen; Alternaria alternata (Fr.) Keissler, Boeremia exigua (Desmazières) Aveskamp, Gruyter & Verkley, Mycosphaerella fragariae (Tul.) Lindau., Colletotrichum acutatum J.H. Simmonds, Colletotrichum gleosporoides (Penz.) Penz., Botrytis cinerea (de Bary) Whetzel, Lasiodiplodia theobromae (Pat.) Griffon & Maubl., Diaporthe actinidae N.F. Sommer & Beraha., Diaporthe eres Nitschke, Didymella americana Saccardo ex Saccardo, Didymellea pomorum (Thümen) Aveskamp, Gruyter & Verkley, Diplodia seriata de Notaris, Macrophomina phaseolina (Tassi) Goidanich, Peyronellae prosopidis, Phytophthora cactorum (Lebert & Cohn) J.Schröter, Phytophthora plurivora Jung & Burgess., Phytophthora kelmania patojen olarak tespit edilmiştir. Yaprak ve kök teşhisi yapılan bu etmenler uygun metodlarla çilek bitkilerine inokule edilerek patojeniteleri gerçekleştirilmiştir. Patojenisitesi yapılan etmenlerden en yaygın olarak tespit edilen etmen yaprak lekesi hastalığı (Alternaria alternata) %41,94 oranında, kök hastalıkları ise %38,13 oranında yaygın tespit edilmiştir. Bu izolatlarla çeşit-reaksiyon çalışmaları (Festival, Kabarla, Sweetann, Alison, Osmanlı, Kara çilek, Tüylü, Sabrina, Rubigem, San Andreas, Albion, Festival, Monterey) 12 çilek çeşidi üzerinde gerçekleştirilmiştir. Buna göre Alternaria alternata yaprak lekesine en hassas çeşit % 86 hastalık şiddetiyle Kabarla, M. phaseolina ve L. theobromae ‘ ye karşı hassas olan çeşit ise Tüylü çilek çeşididir. Osmanlı çilek çeşidi her 3 hastalık etmenine karşı diğer çeşitlere nispeten daha dayanıklı bulunmuştur.

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Characterization of Alternaria species associated with black spot of strawberry in Beijing municipality of China

Cited by 17 publications

References 27 publications

Comprehensive analysis of codon usage pattern in Withania somnifera and its associated pathogens: Meloidogyne incognita and Alternaria alternata

Comprehensive analysis of codon usage pattern in Withania somnifera and its associated pathogens: Meloidogyne incognita and Alternaria alternata

Comparative analysis of the microbiomes of strawberry wild species Fragaria nilgerrensis and cultivated variety Akihime using amplicon-based next-generation sequencing

Occurrence of fungal strawberry diseases in Central Anatolia Region of Turkey and reactions of some varieties grown widely against the important pathogens

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