- Plant Pathogens and Fungal Diseases
- Plant Pathogenic Bacteria Studies
- Plant-Microbe Interactions and Immunity
- Plant Pathogens and Resistance
- Yeasts and Rust Fungi Studies
- Banana Cultivation and Research
- Plant Parasitism and Resistance
University of Auckland
2024-2025
Plant & Food Research
2024-2025
Victoria University of Wellington
2021
Outside Front Cover: The cover image is based on the article Identification and Characterization of Innate Immunity in Actinidia melanandra Response to Pseudomonas syringae pv. actinidiae by Jay Jayaraman et al., https://doi.org/10.1111/pce.15189.
In 2010, a Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) incursion into New Zealand kiwifruit orchards devastated susceptible Actinidia chinensis cultivars. contrast, many species maintained in germplasm collections were resistant to Psa3 and showed limited symptoms. Recent genome biosurveillance revealed the emergence of widespread leaf spot symptoms Psa3-resistant germplasm. Surprisingly, few isolates recovered from symptomatic tissues, despite frequent isolation phenotypical on...
In the late 2000s, a pandemic of Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) devastated kiwifruit orchards growing susceptible, yellow-fleshed cultivars. New Zealand's industry has since recovered, following deployment tolerant cultivar 'Zesy002'. However, little is known about extent to which Psa population evolving its arrival. Over 500 Psa3 isolates from Zealand were sequenced between 2010 and 2022, commercial monocultures diverse germplasm collections. While effector loss was...
Abstract Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) has decimated kiwifruit orchards growing susceptible Actinidia chinensis varieties. Effector loss occurred recently in Psa3 isolates from resistant germplasm, resulting strains capable of partially overcoming resistance present kiwiberry vines ( A. arguta, polygama , and melanandra ). Diploid male recognises several effectors, sharing recognition at least one avirulence effector (HopAW1a) with previously studied tetraploid vines....
ABSTRACT Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) has decimated kiwifruit orchards growing susceptible Actinidia chinensis varieties. Effector loss occurred recently in Psa3 isolates from resistant germplasm, resulting strains capable of partially overcoming resistance present kiwiberry vines ( arguta , polygama and melanandra ). Diploid male A. recognises several effectors, sharing recognition at least one avirulence effector (HopAW1a) with previously studied tetraploid vines....
Phytophthora species cause disease and devastation of plants in ecological horticultural settings worldwide. A recently identified species, Phytophthoraagathidicida, infects ultimately kills the treasured kauri trees (Agathis australis) that are endemic to New Zealand. Currently, there few options for managing dieback disease. In this study, we sought assess efficacy oomycide oxathiapiprolin against several life cycle stages two geographically distinct P. agathidicida isolates. The effective...
Abstract In the late 2000s, a pandemic of Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) devastated kiwifruit orchards growing susceptible yellow-fleshed cultivars. New Zealand’s industry has since recovered, following deployment tolerant cultivar ‘Zesy002’. However, little is known about extent to which Psa population evolving its arrival. Over 500 Psa3 isolates from Zealand were sequenced between 2010 and 2022, commercial monocultures diverse germplasm collections. While effector loss...
Abstract Phytophthora species cause disease and devastation of plants in ecological horticultural settings worldwide. A recently identified species, P. agathidicida , infects ultimately kills the treasured kauri trees that are endemic to New Zealand. Currently there few options for controlling or treating . In this study, we sought assess toxicity oomycide oxathiapiprolin against several lifecycle stages two geographically distinct isolates. Half maximal effective concentration (EC 50 )...