Hot Water Treatment Causes Lasting Alteration to the Grapevine ( L.) Mycobiome and Reduces Pathogenic Species Causing Grapevine Trunk Diseases.

The effective management of grapevine trunk diseases (GTDs) is an ongoing challenge. Hot water treatment (HWT) is an environmentally friendly and economically viable option; however, the short-term effects of HWT on grapevine ( L.) health and production are not fully understood.

Variation in Fungal Community in Grapevine () Nursery Stock Depends on Nursery, Variety and Rootstock.

Grapevine trunk diseases (GTDs) are caused by cryptic complexes of fungal pathogens and have become a growing problem for new grapevine () plantations. We studied the role of the nursery, variety, and rootstock in the composition of the fungal communities in root collars and graft unions of planting material in Catalonia (NE Spain). We compared necrosis and fungal communities in graft unions and root collars at harvest, and then after three months of cold storage.

Pathogenicity and Distribution along a Mediterranean-Subalpine Gradient.

species have been traditionally regarded as brackish water oomycetes; however, recent reports in inland freshwater call for a better understanding of their ecology and possible pathogenicity. We studied the distribution of in 117 forest streams by metabarcoding river filtrates taken in spring and autumn and by direct isolation from floating leaves. Pathogenicity on six species and was assessed by stem inoculations.