Occurrence of Phomopsis longicolla Conidia in Naturally Infected Soybean
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2013
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Although Phomopsis longicolla is primarily known as a seedborne pathogen, it can be isolated from all parts of the plant. The disease lesions observed on the basal parts of soybean stems were slightly sunken with irregular shapes and sizes, bordered by a thin black margin. Within the lesions themselves, large and diffusely distributed pycnidia with and conidia, typical of the genus Phomopsis, were observed. The percentages of the two types of conidia varied considerably, but conidia were predominant in most of the pycnidia. The presence of these reproductive organs indicated that the symptoms could have been caused by Phomopsis sojae. However, after isolation on a nutritive medium, all cultural and morphological characteristics clearly indicated that the isolated fungus was P. longicolla, whose identification was subsequently confirmed by sequencing three genomic regions. Monosporic isolates, with different ratios of and conidia, exhibited a high level of pathogenicity on soybean, afte...r artificial inoculation. Both types of conidia were observed on the stems of the inoculated soybean plants. Beta conidia also formed quickly on medium made of soybean seeds and mature stems after exposure to low temperatures (-10 degrees C). This study suggests that P.longicolla is capable of a massive production of conidia, not only in old fungal cultures as it had until now been believed, but also in infected soybean plants in the field.
Ključne reči:
soybean / Phomopsis longicolla / conidia / disease symptomsIzvor:
Journal of Phytopathology, 2013, 161, 7-8, 470-477Izdavač:
- Wiley-Blackwell, Hoboken
Finansiranje / projekti:
- Interdisciplinarni pristup stvaranju novih sorti soje i unapređenju tehnologije gajenja i dorade semena (RS-MESTD-Technological Development (TD or TR)-31022)
DOI: 10.1111/jph.12092
ISSN: 0931-1785
WoS: 000321507600004
Scopus: 2-s2.0-84880292176
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Institucija/grupa
FiVeRTY - JOUR AU - Vidić, Miloš AU - Petrović, Kristina AU - Đorđević, Vuk AU - Riccioni, Luca PY - 2013 UR - http://fiver.ifvcns.rs/handle/123456789/1217 AB - Although Phomopsis longicolla is primarily known as a seedborne pathogen, it can be isolated from all parts of the plant. The disease lesions observed on the basal parts of soybean stems were slightly sunken with irregular shapes and sizes, bordered by a thin black margin. Within the lesions themselves, large and diffusely distributed pycnidia with and conidia, typical of the genus Phomopsis, were observed. The percentages of the two types of conidia varied considerably, but conidia were predominant in most of the pycnidia. The presence of these reproductive organs indicated that the symptoms could have been caused by Phomopsis sojae. However, after isolation on a nutritive medium, all cultural and morphological characteristics clearly indicated that the isolated fungus was P. longicolla, whose identification was subsequently confirmed by sequencing three genomic regions. Monosporic isolates, with different ratios of and conidia, exhibited a high level of pathogenicity on soybean, after artificial inoculation. Both types of conidia were observed on the stems of the inoculated soybean plants. Beta conidia also formed quickly on medium made of soybean seeds and mature stems after exposure to low temperatures (-10 degrees C). This study suggests that P.longicolla is capable of a massive production of conidia, not only in old fungal cultures as it had until now been believed, but also in infected soybean plants in the field. PB - Wiley-Blackwell, Hoboken T2 - Journal of Phytopathology T1 - Occurrence of Phomopsis longicolla Conidia in Naturally Infected Soybean EP - 477 IS - 7-8 SP - 470 VL - 161 DO - 10.1111/jph.12092 ER -
@article{ author = "Vidić, Miloš and Petrović, Kristina and Đorđević, Vuk and Riccioni, Luca", year = "2013", abstract = "Although Phomopsis longicolla is primarily known as a seedborne pathogen, it can be isolated from all parts of the plant. The disease lesions observed on the basal parts of soybean stems were slightly sunken with irregular shapes and sizes, bordered by a thin black margin. Within the lesions themselves, large and diffusely distributed pycnidia with and conidia, typical of the genus Phomopsis, were observed. The percentages of the two types of conidia varied considerably, but conidia were predominant in most of the pycnidia. The presence of these reproductive organs indicated that the symptoms could have been caused by Phomopsis sojae. However, after isolation on a nutritive medium, all cultural and morphological characteristics clearly indicated that the isolated fungus was P. longicolla, whose identification was subsequently confirmed by sequencing three genomic regions. Monosporic isolates, with different ratios of and conidia, exhibited a high level of pathogenicity on soybean, after artificial inoculation. Both types of conidia were observed on the stems of the inoculated soybean plants. Beta conidia also formed quickly on medium made of soybean seeds and mature stems after exposure to low temperatures (-10 degrees C). This study suggests that P.longicolla is capable of a massive production of conidia, not only in old fungal cultures as it had until now been believed, but also in infected soybean plants in the field.", publisher = "Wiley-Blackwell, Hoboken", journal = "Journal of Phytopathology", title = "Occurrence of Phomopsis longicolla Conidia in Naturally Infected Soybean", pages = "477-470", number = "7-8", volume = "161", doi = "10.1111/jph.12092" }
Vidić, M., Petrović, K., Đorđević, V.,& Riccioni, L.. (2013). Occurrence of Phomopsis longicolla Conidia in Naturally Infected Soybean. in Journal of Phytopathology Wiley-Blackwell, Hoboken., 161(7-8), 470-477. https://doi.org/10.1111/jph.12092
Vidić M, Petrović K, Đorđević V, Riccioni L. Occurrence of Phomopsis longicolla Conidia in Naturally Infected Soybean. in Journal of Phytopathology. 2013;161(7-8):470-477. doi:10.1111/jph.12092 .
Vidić, Miloš, Petrović, Kristina, Đorđević, Vuk, Riccioni, Luca, "Occurrence of Phomopsis longicolla Conidia in Naturally Infected Soybean" in Journal of Phytopathology, 161, no. 7-8 (2013):470-477, https://doi.org/10.1111/jph.12092 . .