Alternaria blight on Brassicaceae – critical factors impacting disease epidemics and potential of novel host resistance

Hebba Al-Lami

doi:10.26182/5f3cbb6dc1ccd

Alternaria blight on Brassicaceae – critical factors impacting disease epidemics and potential of novel host resistance

Hebba Al-Lami

School of Biological Sciences

Research output: Thesis › Doctoral Thesis

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Abstract

These are the first studies in highlighting Alternaria leaf spot pathogens and their populations on Australian rapeseed (Brassica napus), and their virulence levels within and between different Alternaria spp. Epidemiological studies, along with differential vulnerabilities of different plant ages, explain, for the first time, the disease epidemiology of A. japonica on Brassica spp. in current and predicted climates. Field studies demonstrated A. japonica causes more than 55% yield loss, similar yield losses as occur with A. brassicae. Noval and highly resistant varieties against A. japonica were identified, but there were only highly susceptible varieties found against A. brassicae.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Barbetti, Martin, Supervisor You, Mingpei, Supervisor
Award date	3 Aug 2020
DOIs	https://doi.org/10.26182/5f3cbb6dc1ccd
Publication status	Unpublished - 2020

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10.26182/5f3cbb6dc1ccd

THESIS - DOCTOR OF PHILOSOPHY - AL_LAMI, Hebba F Deli - 2020
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Cite this

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title = "Alternaria blight on Brassicaceae – critical factors impacting disease epidemics and potential of novel host resistance",

abstract = "These are the first studies in highlighting Alternaria leaf spot pathogens and their populations on Australian rapeseed (Brassica napus), and their virulence levels within and between different Alternaria spp. Epidemiological studies, along with differential vulnerabilities of different plant ages, explain, for the first time, the disease epidemiology of A. japonica on Brassica spp. in current and predicted climates. Field studies demonstrated A. japonica causes more than 55% yield loss, similar yield losses as occur with A. brassicae. Noval and highly resistant varieties against A. japonica were identified, but there were only highly susceptible varieties found against A. brassicae.",

keywords = "Alternaria blight/leaf spot, Alternaria brassicae, Alternaria japonica, Brassica napus, rapeseed, Yield loss, Virulence Variability, Host resistance",

author = "Hebba Al-Lami",

year = "2020",

doi = "10.26182/5f3cbb6dc1ccd",

language = "English",

school = "The University of Western Australia",

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AU - Al-Lami, Hebba

PY - 2020

Y1 - 2020

N2 - These are the first studies in highlighting Alternaria leaf spot pathogens and their populations on Australian rapeseed (Brassica napus), and their virulence levels within and between different Alternaria spp. Epidemiological studies, along with differential vulnerabilities of different plant ages, explain, for the first time, the disease epidemiology of A. japonica on Brassica spp. in current and predicted climates. Field studies demonstrated A. japonica causes more than 55% yield loss, similar yield losses as occur with A. brassicae. Noval and highly resistant varieties against A. japonica were identified, but there were only highly susceptible varieties found against A. brassicae.

AB - These are the first studies in highlighting Alternaria leaf spot pathogens and their populations on Australian rapeseed (Brassica napus), and their virulence levels within and between different Alternaria spp. Epidemiological studies, along with differential vulnerabilities of different plant ages, explain, for the first time, the disease epidemiology of A. japonica on Brassica spp. in current and predicted climates. Field studies demonstrated A. japonica causes more than 55% yield loss, similar yield losses as occur with A. brassicae. Noval and highly resistant varieties against A. japonica were identified, but there were only highly susceptible varieties found against A. brassicae.

KW - Alternaria blight/leaf spot

KW - Alternaria brassicae

KW - Alternaria japonica

KW - Brassica napus

KW - rapeseed

KW - Yield loss

KW - Virulence Variability

KW - Host resistance

U2 - 10.26182/5f3cbb6dc1ccd

DO - 10.26182/5f3cbb6dc1ccd

M3 - Doctoral Thesis

ER -

Alternaria blight on Brassicaceae – critical factors impacting disease epidemics and potential of novel host resistance

Abstract

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