<i>Neonectria</i>and<i>Cylindrocarpon</i>: the Nectria mammoidea group and species lacking microconidia

Brayford, D.; Honda, Barry M.; Mantiri, Feky R.; Samuels, Gary J.

doi:10.1080/15572536.2005.11832955

Cited by 30 publications

(37 citation statements)

References 13 publications

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“…Observation of the conidia revealed morphological characteristics that matched previous descriptions of Neonectria species [3,4,12]. The macroconidia had a mean measurement of 28.9 × 6.2 µm length and width respectively and were cylindrical, straight with one to three-septate (Figure 4) but the isolate did not produce microconidia.…”

Section: Characteristics Of Isolates and The Conidia Sizesupporting

confidence: 58%

“…The length and width of the conidia were determined using the SPOT Imaging Software (v4.7.0.35, Diagnostic Instruments, Inc., MI). The conidia characters were compared with those in previous reports [3,4,12] and isolates were subjected to molecular identification.…”

Section: Morphology and Molecular Identification Of Isolatesmentioning

confidence: 99%

“…Isolates obtained were identified through anamorph morphology characteristics [3,4,11,12]. Digital images of 20 conidia of isolates were captured with a Leica DFC420 camera mounted on a compound microscope (Olympus BX40).…”

Section: Morphology and Molecular Identification Of Isolatesmentioning

confidence: 99%

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Association of Neonectria macrodidyma with Dry Root Rot of Citrus in California

AO¹,

JS²,

BB³

et al. 2017

J Plant Pathol Microbiol

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During yearly surveys that started in 2010 to identify pathogens associated with dry root rot disease of citrus in California, samples with root rot symptoms were collected in Tulare County. Small pieces of tissue from root samples were plated onto potato dextrose agar amended with 0.01% tetracycline and incubated at 25°C. Pure cultures of fungal isolates were identified by morphology and sequence analysis of the Internal Transcribed Spacer and Beta Tubulin regions. Neonectria macrodidyma (Cylindrocarpon macrodidymum) was first recovered in 2011 and has subsequently been recovered multiple times from citrus samples. The pathogen appeared to be widely distributed in association with citrus dry root rot and possibly interacts with Fusarium solani, Phytophthora nicotianae and P. citrophthora, the major soil borne pathogens that were frequently identified from plant samples with root and/or crown rot of citrus in California. The fungal genus Cylindrocarpon (Teleomorph: Neonectria wolenw=Dactylonect ria=Ilyonectria) contains ubiquitous soil borne pathogens that cause black foot disease on a wide range of hosts, including grapevine, strawberry, apple, and conifers. Hosts typically become infected through natural wounds on roots and other below ground parts. In this report, we present strain UCR3312, which is the most recently isolated pathogenic strain in 2015. Considering the potential damage that this organism may cause to the citrus industry, detailed studies are recommended to better understand its distribution, epidemiology, and the general pathogen biology to improve the disease management practices.

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Section: Characteristics Of Isolates and The Conidia Sizesupporting

confidence: 58%

Section: Morphology and Molecular Identification Of Isolatesmentioning

confidence: 99%

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Association of Neonectria macrodidyma with Dry Root Rot of Citrus in California

AO¹,

JS²,

BB³

et al. 2017

J Plant Pathol Microbiol

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“…Species belonging to the Nectria mammoidea-Group, Nectria rugulosa-Group, Nectria radicicola-Group and Nectria veuillotiana-Group were later assigned to the genus [23,24]. More recently, quite a few species were added to the genus [25][26][27][28][29][30][31][32].…”

mentioning

confidence: 99%

DNA barcoding of the fungal genus Neonectria and the discovery of two new species

Zhao

Luo

Zhuang

et al. 2011

Sci. China Life Sci.

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To determine a suitable DNA barcode for the genus Neonectria, the internal transcribed spacer rDNA, β-tubulin, EF-1α, and RPB2 genes were selected as candidate markers. A total of 205 sequences from 19 species of the genus were analyzed. Intraand inter-specific divergences and the ease of nucleotide sequence acquisition were treated as criteria to evaluate the feasibility of a DNA barcode. Our results indicated that any single gene among the candidate markers failed to serve as a successful barcode, while the combination of the partial EF-1α and RPB2 genes recognized all species tested. We tentatively propose the combined partial EF-1α and RPB2 genes as a DNA barcode for the genus. During this study, two cryptic species were discovered, based on the combined data of morphology and DNA barcode information. We described and named these two new species N. ditissimopsis and N. microconidia. intra-specific variation, inter-specific variation, morphology, DNA barcode, sequence analysis Citation:Zhao P, Luo J, Zhuang W Y, et al. DNA barcoding of the fungal genus Neonectria and the discovery of two new species . Sci China Life Sci, 2011, 54: 664 -674,

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“…tenue y Acremonium-like. El primero no se ha presentado en aislamientos de laboratorio, siendo el segundo estado el más común de encontrar en medios de cultivos artificiales (Brayford et al 2004, Castlebury et al 2006). …”

Section: Introductionunclassified

Distribución geográfica y caracterización fenotípica y molecular de Neonectria fuckeliana, asociado a cancros fustales de Pinus radiata en Chile

et al. 2015

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450 km in the coast from Biobío Region (5860100N - 627358E 18H) to Los Lagos Region (5423863N - 636153E 18G) in Chile. Phenotypically, three colors of colonies were identified: red, yellow and pale yellow; red being the predominant (> 70 %) in all locations. In addition, it was determined that isolates recovered in Region of La Araucanía had higher growth and conidia sizes than those of Los Ríos Region. Molecular characterization confirmed the identification of N. fuckeliana, with 99 % identity with sequences of N.fuckeliana from Europe and New Zealand deposited in Genbank (KJ022020 and HQ840404) without genetic differences among Chilean isolates obtained in this study.]]>

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NeonectriaandCylindrocarpon: the Nectria mammoidea group and species lacking microconidia

Cited by 30 publications

References 13 publications

Association of Neonectria macrodidyma with Dry Root Rot of Citrus in California

Association of Neonectria macrodidyma with Dry Root Rot of Citrus in California

DNA barcoding of the fungal genus Neonectria and the discovery of two new species

Distribución geográfica y caracterización fenotípica y molecular de Neonectria fuckeliana, asociado a cancros fustales de Pinus radiata en Chile

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