Prevalence and distribution of Botryosphaeriaceae species in New Zealand grapevine nurseries

Billones‐Baaijens, Regina; Ridgway, Hayley J.; Jones, E. Eirian; Cruickshank, Robert; Jaspers, Marlene V.

doi:10.1007/s10658-012-0076-4

Cited by 30 publications

(26 citation statements)

References 30 publications

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“…() and Baskarathevan et al . (), and sequence analyses of the ITS region of rDNA (Billones‐Baaijens et al ., ). The aligned DNA sequences of the representative isolates for each species from the nurseries and the neighbour‐joining tree were submitted to TreeBASE.org (accession number TB2:S13227) (Billones‐Baaijens et al ., ).…”

Section: Methodsmentioning

confidence: 97%

“…Amponsah et al (2011) also reported that New Zealand vineyard isolates of N. luteum, N. australe, N. parvum and D. mutila were pathogenic, being able to cause necrotic lesions on excised and attached green shoots and trunks of five grapevine varieties. Billones-Baaijens et al (2013) demonstrated that the same Botryosphaeriaceae species that were prevalent in New Zealand vineyards were present in failed and symptomless young grafted plants and propagation cuttings. They found these pathogens in 5-63% of samples submitted and in materials from eight out of nine nurseries.…”

Section: Introductionmentioning

confidence: 96%

“…Billones‐Baaijens et al . () demonstrated that the same Botryosphaeriaceae species that were prevalent in New Zealand vineyards were present in failed and symptomless young grafted plants and propagation cuttings. They found these pathogens in 5–63% of samples submitted and in materials from eight out of nine nurseries.…”

Section: Introductionmentioning

confidence: 97%

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Virulence affected by assay parameters during grapevine pathogenicity studies with Botryosphaeriaceae nursery isolates

et al. 2013

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This study assessed the symptoms that developed when 114 Botryosphaeriaceae isolates from grapevine nursery plant materials were used to inoculate excised green shoots and 1-year-old rooted canes of Sauvignon blanc. The experiments showed that all isolates and species were able to produce lesions. Overall, the Neofusicoccum species were shown to be highly pathogenic in both tissue types while the Diplodia species were highly pathogenic on canes but not on green shoots. Isolates of the most prevalent species, N. luteum and N. parvum, showed varying lesion lengths on excised green shoots and canes. An evaluation of the factors associated with lengths of lesions showed that they were significantly affected by experimental batch which reflected inherent host and environmental factors over time. Reisolation from inoculated canes also indicated that most isolates of all species except D. seriata were able to spread internally beyond the lesions. Genetic variability analysis using UP-PCR showed that N. luteum isolates were genetically diverse but no association was observed between the phylogenetic group and degree of pathogenicity caused by the isolates. This study demonstrated that all Botryosphaeriaceae species from grapevine nurseries were pathogenic to grapevines and that the lesion lengths varied between species, among isolates within a species and among nursery sources, and was affected by the test method.

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Section: Methodsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 96%

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Virulence affected by assay parameters during grapevine pathogenicity studies with Botryosphaeriaceae nursery isolates

et al. 2013

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“…luteum, N. australe, Diplodia mutila, Botryosphaeria dothidea and D. seriata, with N. parvum being the predominant species. The same six species were also the most commonly isolated from plants and propagation materials from nine nurseries (Billones-Baaijens et al 2013). In vineyards, conidia produced on diseased tissue have been reported to be the main inoculum sources, being splash dispersed to infect grapevine tissue through wounds (van Niekerk et al 2010).…”

Section: Introductionmentioning

confidence: 95%

Conidial production by <i>Botryosphaeriaceae</i> species from grapevine shoot lesions in Marlborough vineyards

Shafi

Ridgway

Jaspers

et al. 2017

NZPP

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Botryosphaeriaceae species are important pathogens of grapevines so the effect of environmental conditions on sporulation from naturally infected Sauvignon blanc grapevines in two Marlborough vineyards was studied. Shoot lesions characteristic of Botryosphaeriaceae infection were marked on 24 grapevines in each vineyard for observation between September 2014 and April 2015. Pycnidia on the lesions oozed conidia during or soon after rainfall on five occasions at maximum air temperatures of 8.4-19.9°C and relative humidities of 77-94.7%. Microscopic observation of the ooze showed conidia characteristic of either Neofusicoccum or Diplodia species in 67% and 50% of samples from Vineyard A and B, respectively. Sixtynine colonies characteristic of Botryosphaeriaeae species were recovered after plating of conidial ooze and identified by DNA analysis as Diplodia mutila (39.1%), Neofusicoccum australe (30.4%), N. parvum (14.5%), N. luteum (5.8%), D. seriata (7.2%) and N. ribis (3.0%). All species have been reported previously as grapevine pathogens in New Zealand.

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“…Neofusicoccum luteum was first reported in New Zealand in 1985 on kiwifruit (Pennycook & Samuels, ) and the first report of N. australe in New Zealand was on grapevines (Amponsah et al ., ). Although both species are found in grapevine nurseries and vineyards, their relative prevalence differed in grapevine nurseries (57% N. luteum and 7% N. australe ; Billones‐Baaijens et al ., ) and vineyards (14% N. luteum and 11% N. australe ; Baskarathevan et al ., ). New Zealand surveys and pathogenicity studies have indicated that these two species are important pathogens of grapevines and significantly contribute to dieback and decline disease (Amponsah et al ., ; Baskarathevan et al ., ; Billones‐Baaijens et al ., ).…”

Section: Introductionmentioning

confidence: 99%

High genetic and virulence diversity detected in Neofusicoccum luteum and N. australe populations in New Zealand vineyards

et al. 2016

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Genotypic and virulence diversity of Neofusicoccum luteum and N. australe isolates recovered from grapevines displaying symptoms of dieback and decline in New Zealand were investigated. The universally primed PCR (UP‐PCR) method was used to investigate the genetic diversity of 40 isolates of N. luteum and 33 isolates of N. australe. Five UP‐PCR primers produced a total of 51 loci from N. luteum and 57 from N. australe with a greater number of polymorphic loci produced in N. australe (86%) compared with N. luteum (69%). Analysis of UP‐PCR data showed both species found in New Zealand vineyards were genetically diverse at both the inter‐ and intra‐vineyard levels with only a single pair of clonal isolates in N. luteum. Cluster analysis of UP‐PCR data produced four genetic groups in N. luteum and 10 in N. australe (P < 0.05). For both species, there was no relationship between the genetic groups and the origin of isolates. The mean genetic diversity (H) of N. luteum was less than for N. australe, being 0.1791 and 0.2417, respectively. Pathogenicity assays of both species using isolates from either the same or different genetic groups inoculated onto either green shoots or grapevine trunks, showed virulence diversity within the population; however, no correlation was identified between genetic groups and virulence.

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Prevalence and distribution of Botryosphaeriaceae species in New Zealand grapevine nurseries

Cited by 30 publications

References 30 publications

Virulence affected by assay parameters during grapevine pathogenicity studies with Botryosphaeriaceae nursery isolates

Virulence affected by assay parameters during grapevine pathogenicity studies with Botryosphaeriaceae nursery isolates

Conidial production by <i>Botryosphaeriaceae</i> species from grapevine shoot lesions in Marlborough vineyards

High genetic and virulence diversity detected in Neofusicoccum luteum and N. australe populations in New Zealand vineyards

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