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The research aims to identify and describe a new fungal species affecting fig trees in Iran.

April 10, 2026PLoS ONEOpen Access

Thyrostroma parviniae sp. nov., causing bud necrosis and branch dieback in fig trees from Iran

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Surveys reveal a new fungal species causing serious symptoms in fig trees, suggesting urgent attention is needed.

The research aims to identify and describe a new fungal species affecting fig trees in Iran.
Conducted surveys in commercial fig orchards in Fars Province, Iran.
Isolated fungal strains from symptomatic fig trees.
Performed phylogenetic analysis using multigene sequence data.
Established pathogenicity through artificial inoculations on fig saplings.
Identified a new species, Thyrostroma parviniae sp. nov., based on morphological and genetic data.
Demonstrated that the pathogen causes bud necrosis and branch dieback.
Showed that T. parviniae has high aggressiveness variability in inducing lesions.
Confirmed the pathogen can infect unwounded fig tissues, posing a risk for yield loss.

Negahban et al. (2026) studied this question.

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