scholarly journals Closed-reference metatranscriptomics enablesin plantaprofiling of putative virulence activities in the grapevine trunk disease complex

2017 ◽  
Vol 19 (2) ◽  
pp. 490-503 ◽  
Author(s):  
Abraham Morales-Cruz ◽  
Gabrielle Allenbeck ◽  
Rosa Figueroa-Balderas ◽  
Vanessa E. Ashworth ◽  
Daniel P. Lawrence ◽  
...  
Keyword(s):  
Disease Complex ◽  
Trunk Disease ◽  
Grapevine Trunk Disease

scholarly journals Novel Seimatosporium Species from Grapevine in Northern California and Their Interactions with Fungal Pathogens Involved in the Trunk-Disease Complex

Plant Disease ◽  
2018 ◽  
Vol 102 (6) ◽  
pp. 1081-1092 ◽  
Author(s):  
Daniel P. Lawrence ◽  
Renaud Travadon ◽  
Kendra Baumgartner
Keyword(s):  
Fungal Pathogens ◽  
Phylogenetic Analyses ◽  
Ecological Status ◽  
Northern California ◽  
Diplodia Seriata ◽  
Disease Complex ◽  
Eutypa Lata ◽  
Trunk Disease ◽  
Grapevine Trunk Disease ◽  
Diaporthe Ambigua

Seimatosporium spp. and closely related “pestalotioid fungi” have been isolated from vineyards worldwide, but their ecological status in grapevine wood is unclear. To determine their involvement in the grapevine trunk-disease complex, we tested the pathogenicity of Californian isolates obtained from vines with general symptoms of Botryosphaeria, Eutypa, and Phomopsis diebacks. Multilocus phylogenetic analyses revealed three species: Seimatosporium vitis and two newly described and typified species, S. luteosporum sp. nov. and S. vitifusiforme sp. nov. Inoculations to woody stems of potted grapevines of both isolates of S. vitis and one isolate of S. vitifusiforme, but not S. luteosporum, were associated with significantly larger lesions than those of noninoculated controls. Coinoculations with trunk pathogens (Cryptovalsa ampelina, Diaporthe ambigua, Diatrypella verruciformis, Diplodia seriata, and Eutypa lata), coisolated from the same wood cankers in the field, brought about increased lesion lengths for S. vitifusiforme paired with D. seriata, and S. luteosporum paired with Diaporthe ambigua. In contrast, there were no differences in lesion lengths of S. vitis and Diatrypella verruciformis or S. vitis and E. lata, inoculated alone or together. Our findings suggest that Seimatosporium spp. are involved in the grapevine trunk-disease complex, and their virulence may depend on or affect that of trunk pathogens.

scholarly journals Role of basidiomycete fungi in the grapevine trunk disease esca

2019 ◽  
Vol 69 (2) ◽  
pp. 205-220 ◽  
Author(s):  
A. A. Brown ◽  
D. P. Lawrence ◽  
K. Baumgartner
Keyword(s):  
Trunk Disease ◽  
Grapevine Trunk Disease ◽  
Basidiomycete Fungi

The Spread of Grapevine Trunk Disease

Science ◽  
2009 ◽  
Vol 324 (5928) ◽  
pp. 721-721 ◽  
Author(s):  
C. Bertsch ◽  
P. Larignon ◽  
S. Farine ◽  
C. Clement ◽  
F. Fontaine
Keyword(s):  
Trunk Disease ◽  
Grapevine Trunk Disease

scholarly journals Arthropods Vector Grapevine Trunk Disease Pathogens

2014 ◽  
Vol 104 (10) ◽  
pp. 1063-1069 ◽  
Author(s):  
P. Moyo ◽  
E. Allsopp ◽  
F. Roets ◽  
L. Mostert ◽  
F. Halleen
Keyword(s):  
Cropping Systems ◽  
Integrated Approach ◽  
Molecular Techniques ◽  
Inoculum Source ◽  
Phaeomoniella Chlamydospora ◽  
Grapevine Trunk Diseases ◽  
Pruning Wound ◽  
Trunk Disease ◽  
Grapevine Trunk Disease ◽  
Trunk Diseases

Arthropod-mediated dispersal of pathogens is known in many cropping systems but has never been demonstrated for grapevine trunk disease pathogens. Arthropods from vineyards were screened for the presence of pathogens associated with Petri disease and esca using cultural and molecular techniques. The ability of the most abundant pathogen-carrying species to inoculate healthy grapevine vascular tissues was also determined. Millipedes and ants were allowed to associate with a DsRed- Express-transformed Phaeomoniella chlamydospora, after which they were exposed to freshly pruned healthy grapevines under controlled conditions and wounds were monitored for subsequent infection. In addition, the possibility of millipede excreta, commonly found on pruning wounds in the field, to act as inoculum source was determined. A diverse arthropod fauna was associated with declining grapevines and many of these carried trunk disease pathogens. However, spiders, the ant Crematogaster peringueyi, and the millipede Ommattoiulus moreleti were the most abundant pathogen carriers. The ant and millipede species fed on pruning wound sap and effectively transmitted trunk disease pathogens. Millipede excreta contained viable spores of Phaeomoniella chlamydospora and may serve as an inoculum source. Numerous arthropods, including beneficial predators, are potential vectors of grapevine trunk disease pathogens. Our results highlight the need for an integrated approach, including targeted management of ants and millipedes at the time of pruning, to limit the spread of grapevine trunk diseases.

Truncatella angustataassociated with grapevine trunk disease in northern Iran

2013 ◽  
Vol 46 (10) ◽  
pp. 1168-1181 ◽  
Author(s):  
Mahdi Arzanlou ◽  
Abolfazl Narmani ◽  
Somayeh Moshari ◽  
Sima Khodaei ◽  
Asadollah Babai-Ahari
Keyword(s):  
Northern Iran ◽  
Trunk Disease ◽  
Grapevine Trunk Disease

Isolation of Phytotoxic Phenols and Characterization of a New 5-Hydroxymethyl-2-isopropoxyphenol fromDothiorella vidmadera, a Causal Agent of Grapevine Trunk Disease

2018 ◽  
Vol 66 (8) ◽  
pp. 1760-1764 ◽  
Author(s):  
Pierluigi Reveglia ◽  
Sandra Savocchia ◽  
Regina Billones-Baaijens ◽  
Alessio Cimmino ◽  
Antonio Evidente
Keyword(s):  
Causal Agent ◽  
Trunk Disease ◽  
Grapevine Trunk Disease
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