Insights into the genus Diaporthe: phylogenetic species delimitation in the D. eres species complex

Udayanga, Dhanushka; Castlebury, Lisa A.; Rossman, Amy Y.; Chukeatirote, Ekachai; Hyde, Kevin D.

doi:10.1007/s13225-014-0297-2

Cited by 232 publications

(239 citation statements)

References 104 publications

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“…Diaporthe eres is the species currently found most often on diseased ash trees. It can live as a pathogen, endophyte or saprotroph and has a widespread Eur J Forest Res (2016) 135:565-579 575 distribution and broad host range (Udayanga et al 2014). In some regions, it is considered an important pathogen with significance in plant health inspection and quarantine (Cline and Farr 2006;Udayanga et al 2014).…”

Section: Occurrence Of Other Frequent Fungal Speciesmentioning

confidence: 99%

“…It can live as a pathogen, endophyte or saprotroph and has a widespread Eur J Forest Res (2016) 135:565-579 575 distribution and broad host range (Udayanga et al 2014). In some regions, it is considered an important pathogen with significance in plant health inspection and quarantine (Cline and Farr 2006;Udayanga et al 2014). Diplodia mutila (teleomorph: Botryosphaeria stevensii) is an ascomycetous fungus from the Botryosphaeriaceae with worldwide distribution (Alves et al 2014).…”

Section: Occurrence Of Other Frequent Fungal Speciesmentioning

confidence: 99%

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Fungi on stems and twigs in initial and advanced stages of dieback of European ash (Fraxinus excelsior) in Poland

Kowalski¹,

Kraj²,

Bednarz³

2016

Eur J Forest Res

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F. excelsior is affected by dieback in the major part of its natural geographical range in Europe, which results in economic and ecological losses. The disease is caused by the ascomycetous fungus Hymenoscyphus fraxineus, a pathogen introduced to Europe most probably from East Asia. This paper presents data on fungi identified on F. excelsior trees representing two different stages of ash dieback in Poland. Fungal communities were identified in initial necrotic lesions on living stems and twigs using the classical method of isolation on malt extract agar and morphological and molecular analyses. In dead apical parts of stems and twigs, fungi were identified by microscopic analyses of fruit bodies formed in situ. Seventy-one fungal taxa were found in 720 samples with symptoms of initial or advanced necrosis. The most common fungus detected in initial necrotic lesions in each forest site was Hymenoscyphus fraxineus (59.2 % of analysed samples). Other frequently isolated fungi included Alternaria alternata, Diaporthe eres, Diplodia mutila, Fusarium avenaceum, F. lateritium and Phomopsis spp. Fruit bodies on dead apical parts of stems and twigs were produced mostly by Diaporthe eres, Diplodia mutila, Lophiostoma corticola, Phomopsis spp., Sirodothis sp. and Valsa cypri. Fungal communities from different sites were similar, as shown by high Sørensen similarity index values. Greatest variation in fungal community structure at the initial necrotic stage was realized by D. mutila and F. avenaceum, and at the advanced necrotic stage by D. eres, D. mutila and Phomopsis spp. Data show a close affinity of certain fungi to site, suggesting geographical relatedness. The ecological effects of distribution of the invasive H. fraxineus and of other fungi sporulating on diseased ash trees in Europe are discussed.

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Section: Occurrence Of Other Frequent Fungal Speciesmentioning

confidence: 99%

Section: Occurrence Of Other Frequent Fungal Speciesmentioning

confidence: 99%

Fungi on stems and twigs in initial and advanced stages of dieback of European ash (Fraxinus excelsior) in Poland

Kowalski¹,

Kraj²,

Bednarz³

2016

Eur J Forest Res

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“…The other Phomopsis species can also produce similar colors and structures of mycelium (Gomes et al, 2013;Udayanga et al, 2014aUdayanga et al, , 2014b.…”

Section: Morphological Diversity Of Phomopsis Vaccinii Isolates From mentioning

confidence: 99%

“…Alpha conidia of P. vaccinii were 6-11 μm long and 2.5 μm wide as measured in 1931 (Shear et al, 1931) and also in 1995 (Caruso and Ramsdell, 1995) in the USA, but in recent years 5.9 -11.3 μm long (SD=0.26, n=500) and 2.1-3.9 μm wide (SD=0.8) were recorded in the USA (Farr et al, 2002) and 7 -8 x 2.5 μm in Lithuania (Kačergius et.al., 2004); hyaline, fusiform, straight, guttulate, aseptate, forming creamy white to yellowish spore mass (Farr et During this study many features of P. vaccinii isolates from viscid rot of cranberry in culture on PDA were described, but almost all isolates were slightly different (Table 7), and we were not able to provide one average uniform description, so this is the reason why it can be easily confused with other Phomopsis species if classical phytopathological methods only are used. 1000 species of Phomopsis have been described and many of them have morphological plasticy (Santos and Phillips, 2009, Udayanga et al, 2004a, 2014b.…”

Section: Morphological Diversity Of Phomopsis Vaccinii Isolates From mentioning

confidence: 99%

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Morphological Diversity of Phomopsis vaccinii Isolates from Cranberry (Vaccinium macrocarpon Ait.) in Latvia

Vilka

Volkova

2015

Proceedings of the Latvia University of Agriculture

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Abstract. Phomopsis vaccinii cause a serious disease of blueberry, cranberry and other Vaccinium crops in the North America and Europe as well. Over 1000 species names are described by Phomopsis spp., but their biology and life style are mostly unknown. Identification of P. vaccinii by methods of classical phytopathology is difficult and complicate, because many species are morphologically similar to P. vaccinii, and P. vaccinii itself has diverse patterns of colony morphology. For this investigation P. vaccinii isolates were obtained from five cranberry plantations in different locations of Latvia (Babite, Alsunga, Rucava, Ape and Pargauja municipality) from berries affected by viscid rot at harvest and storage in 2010. Altogether 44 P. vaccinii isolates were cultivated on potato dextrose agar for description of colony morphology. In order to find some relationships between samples, the isolates were arranged in different groups on the basis of mycelium color and structure (zoning), reverse pigmentation, pycnidium formation time, size, location, number and size of conidia. During this study the colonies of P. vaccinii from cranberry in Latvia showed different morphological features in culture and no relationships between growing regions and groups of isolates were found. P. vaccinii is easy to confuse with other Phomopsis species if only classical phytopathological methods are used.

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Application of microbial antagonists as alternatives to chemical pesticides: A novel approach for enhancing plant growth and resilience of agricultural land

Hanif,

Abideen,

Hasan

et al. 2023

Land Degrad Dev

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Microbial inoculants for controlling soil pathogens are an environmentally sustainable approach for attaining agricultural intensification. Charcoal root rot pathogens might threaten global food security and degrade prime agricultural lands. Microbial antagonists to control charcoal root disease were not properly studied with reference to physiological and photochemical basis. This research was aimed to examine the impact of newly isolated microbial biocontrol agents (MBCAs) on growth and photosynthetic efficiency (photosystem II) in pathogen (Macrophomina phaseolina)‐infected plants. The MBCAs (Purpureocillium lilacinum and Aspergillus terreus) were isolated and seeds were coated to improve soil fertility and resilience of agricultural lands. Both MBCAs inhibited the colonization of pathogenic fungus around the roots of host plants. Decline in growth traits was observed due to the detrimental impacts of root rot disease on growth parameters compared with plants treated with M. phaseolina. However, the growth of corn plants in both soils with and without M. phaseolina infestations was substantially improved by treating corn seeds with P. lilacinum and A. terreus. The pathogen drastically reduced the distinct parameters of photosystem II of photosynthesis. However, applying P. lilacinum and A. terreus significantly improved the total performance index (PItot), size, and the number of active reaction centers of photosystem II (Fv/Fo), electron transport rate, electron trapping per absorption (TRO/ABS), electron transport per absorption (ETO/ABS), electron transport per trapping (ETO/TRO), and the efficiency of light reaction (φEo) but downregulates nonphotochemical quenching (NPQ). Our study demonstrates that microbial antagonists offer a more effective, ecofriendly alternative to improve the land to sustainable agriculture.

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Insights into the genus Diaporthe: phylogenetic species delimitation in the D. eres species complex

Cited by 232 publications

References 104 publications

Fungi on stems and twigs in initial and advanced stages of dieback of European ash (Fraxinus excelsior) in Poland

Fungi on stems and twigs in initial and advanced stages of dieback of European ash (Fraxinus excelsior) in Poland

Morphological Diversity of Phomopsis vaccinii Isolates from Cranberry (Vaccinium macrocarpon Ait.) in Latvia

Application of microbial antagonists as alternatives to chemical pesticides: A novel approach for enhancing plant growth and resilience of agricultural land

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