Non-host specificity of Botryosphaeriaceae on macadamia and blueberry

Akinsanmi, Olufemi A.; Galea, Victor J.

doi:10.1007/s13313-018-0600-x

Cited by 13 publications

(7 citation statements)

References 16 publications

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“…to be very aggressive, such as L. citricola on walnuts in California and L. iraniensis on macadamia in Australia (Chen et al, 2014;Jeff-Ego & Akinsanmi, 2019) and they are nonhost-specific (Liddle et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…citricola on walnuts in California and L . iraniensis on macadamia in Australia (Chen et al, 2014; Jeff‐Ego & Akinsanmi, 2019) and they are nonhost‐specific (Liddle et al, 2019). Due to their pathogenicity, incidence in other horticultural crops in walnut‐growing regions, and their ability for cross‐infection, monitoring the possible incidence of Lasiodiplodia species in walnuts, especially in the warmer walnut‐growing areas in NSW and Victoria, is warranted.…”

Section: Discussionmentioning

confidence: 99%

“…has already been established in Australia. Botryosphaeriaceae isolates obtained from seven different hosts were found to be pathogenic to the two unrelated hosts tested, blueberry and macadamia (Liddle et al, 2019). The growing regions of almond, pistachio, grapes and several temperate fruit crops share environmental conditions suitable for walnut growing and Botryosphaeriaceae species have been reported to cause dieback and decline in these crops (Oswald et al, 2019; Savocchia et al, 2007; Wunderlich et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Incidence and distribution of Botryosphaeriaceae species associated with dieback in walnut orchards in Australia

et al. 2022

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Fungi belonging to the family Botryosphaeriaceae have been implicated in significant economic loss in many horticultural crops worldwide. These fungal pathogens pose an emerging risk to the productivity of the Australian walnut industry, although which species of Botryosphaeriaceae are present is unknown. To address this knowledge gap, walnut tissues were collected from 14 orchards representing the major walnut‐growing regions of Australia, and fungal isolations performed. Botryosphaeriaceae species were recovered from both symptomatic and asymptomatic samples from nine of the orchards. DNA sequencing confirmed the presence of five Botryosphaeriaceae species, namely Diplodia seriata, Dothiorella omnivora, Neofusicoccum parvum, N. macroclavatum and Spencermartinsia viticola. Of the 106 Botryosphaeriaceae isolates recovered, D. seriata and N. parvum were the most prevalent species. Pathogenicity studies using detached stems indicated that Neofusicoccum spp. were the most virulent followed by D. seriata. This is the first systematic study on the incidence, identification and pathogenicity of species of Botryosphaeriaceae from walnut orchards in Australia.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Incidence and distribution of Botryosphaeriaceae species associated with dieback in walnut orchards in Australia

et al. 2022

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“…Cross-inoculations in blueberry and macadamia leaves and stems showed no host specificity for several Botryosphaeriaceae species in both of the abovementioned hosts. Nevertheless, blueberry was more susceptible, regardless of the isolates of Botryosphaeriaceae species, as blueberry leaves were colonized in a shorter time than macadamia leaves (Liddle et al, 2019). Macadamia leaves are highly suberized when compared with the waxy blueberry leaves (Liddle et al, 2019), which can influence pathogen penetration and colonization.…”

Section: Botryosphaeria Dothidea Lasiodiplodia Pseudotheobromae Andmentioning

confidence: 99%

“…Nevertheless, blueberry was more susceptible, regardless of the isolates of Botryosphaeriaceae species, as blueberry leaves were colonized in a shorter time than macadamia leaves (Liddle et al, 2019). Macadamia leaves are highly suberized when compared with the waxy blueberry leaves (Liddle et al, 2019), which can influence pathogen penetration and colonization. Moreover, Botryosphaeriaceae species have several strategies to penetrate their hosts.…”

Section: Botryosphaeria Dothidea Lasiodiplodia Pseudotheobromae Andmentioning

confidence: 99%

Penetration by Botryosphaeriaceae species in avocado, guava and persimmon fruit during postharvest

Navarro

Molina

Júnior

2021

Journal of Phytopathology

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Botryosphaeriaceae species have a wide host range and a worldwide distribution.These fungal species can colonize several plant organs, such as the trunk, leaves and fruit. Some Botryosphaeriaceae species cause important diseases on persimmon, avocado and guava fruit. However, there is a lack of information regarding the mechanisms of penetration by Botryosphaeriaceae species on these tropical and subtropical fruits.This study aimed to better understand the mechanisms involved in fungal penetration, host specificity and aggressiveness of Botryosphaeria dothidea, Lasiodiplodia pseudotheobromae and Neofusicoccum parvum on avocado (Persea americana), guava (Psidium guajava) and persimmon (Diospyros kaki) fruit. Scanning electron microscopy (SEM) image analysis showed that in avocado fruit, the three studied Botryosphaeriaceae species penetrated through lenticels. In guava fruit, penetration through stomata was verified for Botryosphaeria dothidea and Neofusicoccum parvum. In persimmon fruit, an appressoria-like structure was observed for B. dothidea, which suggests direct penetration. Disease incidence in wounded fruit was 24% higher than in non-wounded fruit. L. pseudotheobromae and N. parvum showed differences in aggressiveness in guava fruit. The longest incubation period was observed for N. parvum inoculated on guava, with an average of 4.5 days, and the shortest incubation period was verified for B. dothidea inoculated on avocado, with an average of 2.8 days. The area under the disease progress curve (AUDPC) did not differ between Botryosphaeriaceae species on avocado, whereas on guava and persimmon fruit, the AUDPC was lower for B. dothidea. The information regarding penetration mechanisms and aggressiveness is important to improve postharvest disease control strategies.

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Botryosphaeriaceae species associated with blueberry stem blight and dieback in the Centre Region of Portugal

et al. 2019

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Non-host specificity of Botryosphaeriaceae on macadamia and blueberry

Cited by 13 publications

References 16 publications

Incidence and distribution of Botryosphaeriaceae species associated with dieback in walnut orchards in Australia

Incidence and distribution of Botryosphaeriaceae species associated with dieback in walnut orchards in Australia

Penetration by Botryosphaeriaceae species in avocado, guava and persimmon fruit during postharvest

Botryosphaeriaceae species associated with blueberry stem blight and dieback in the Centre Region of Portugal

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