First Report of <i>Neopestalotiopsis clavispora</i> Causing Leaf Spot on Macadamia in Brazil

Santos, Cláudia Coelho; Domingues, Joyce Luz; Santos, R. F.; Spósito, Marcel Bellato; Santos, Armínio; Novaes, Quelmo Silva de

doi:10.1094/pdis-01-19-0108-pdn

Cited by 15 publications

(5 citation statements)

References 3 publications

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“…All inoculated leaves developed dark lesions after 8 days of incubation, whereas control leaves remained asymptomatic. There are some reports of N. clavispora causing disease on strawberry worldwide (Chamorro et al 2016;Mahapatra et al 2018) and Macadamia in Brazil (Santos et al 2019), but this is the first report of leaf spot caused by N. clavispora on date palm in Iran.…”

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confidence: 85%

Occurrence of leaf spot disease on date palm caused by Neopestalotiopsis clavispora in Iran

et al. 2020

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confidence: 85%

Occurrence of leaf spot disease on date palm caused by Neopestalotiopsis clavispora in Iran

et al. 2020

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“…Symptoms are expressed as blight and necrosis of the flowers and dieback of the rachis (Akinsanmi et al, 2017). Other species of Pestalotiopsis and Neopestalotiopsis, such as P. versicolor and N. clavispora, cause leaf spots in macadamia (Prasannath et al, 2020;Qiu et al, 2019;Santos et al, 2019). Prasannath et al (2020) suggested that the leaf spot pathogens can also cause dry flower disease, making management challenging.…”

Section: Cladosporium Cladosporioides (Van Denmentioning

confidence: 99%

“…versicolor and N . clavispora , cause leaf spots in macadamia (Prasannath et al, 2020; Qiu et al, 2019; Santos et al, 2019). Prasannath et al (2020) suggested that the leaf spot pathogens can also cause dry flower disease, making management challenging.…”

Section: Introductionmentioning

confidence: 99%

Molecular methods for the detection and quantification of Pestalotiopsis and Neopestalotiopsis inoculum associated with macadamia

2021

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Pestalotiopsis blight and leaf spot in macadamia are caused by species of Pestalotiopsis and Neopestalotiopsis. Conidia produced by these pathogens are mostly dispersed by wind and rain splash and are the primary infecting propagules. Rapid detection and quantification of airborne conidia are essential to determine the seasonal dynamics of inoculum and critical infection periods in macadamia orchards. A quantitative PCR (qPCR) using a new primer pair and a hydrolysis probe was developed to detect and quantify airborne conidia of Pestalotiopsis and Neopestalotiopsis species. The amplification efficiency of the qPCR was 96.4% and the assay had a limit of detection of 400 fg of Pestalotiopsis/Neopestalotiopsis gDNA, which corresponds to approximately 10 conidia. The qPCR assay coupled with spore trapping was used to monitor airborne conidia dispersal under field conditions. The results showed that the assay is specific and sensitive for detecting and quantifying Pestalotiopsis/Neopestalotiopsis conidia in macadamia orchards. The detection and quantification of the pathogen inoculum will improve our understanding of disease epidemiology and the ability to manage these diseases in macadamia.

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“…Several species of Neopestalotiopsis are phytopathogens in tropical and subtropical regions, causing leaf spot, dry flower, fruit rot, fruit scab, and trunk diseases on a range of crops [ 5 , 8 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. Flower and leaf diseases on macadamia caused by Neopestalotiopsis spp.…”

Section: Introductionmentioning

confidence: 99%

“…Flower and leaf diseases on macadamia caused by Neopestalotiopsis spp. have been reported in Australia [5,8], Brazil [26], and China [25]. Many new pestalotioid species have been introduced in recent years [27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Neopestalotiopsis Species Associated with Flower Diseases of Macadamia integrifolia in Australia

Prasannath

Shivas

Galea

et al. 2021

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Macadamia (Macadamia integrifolia) is native to eastern Australia and produces an edible nut that is extensively cultivated in commercial orchards in several countries. Little is known about the diversity of fungi associated with diseases of macadamia inflorescences. A survey of fungi associated with the dry flower disease of macadamia detected several isolates of Neopestalotiopsis (Pestalotiopsidaceae, Sordariomycetes). Five new species of Neopestalotiopsis were identified based on molecular phylogenetic analyses of concatenated gene sequences of the internal transcribed spacer (ITS), β-tubulin (TUB), and the translation elongation factor 1-alpha (TEF1α). The new species are named Neopestalotiopsis drenthii, N. maddoxii, N. olumideae, N. vheenae, and N. zakeelii, and are described by molecular, morphological, and cultural characteristics. The ecology of the isolates and their pathogenic, saprophytic, or commensal ability were not determined.

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First Report of Neopestalotiopsis clavispora Causing Leaf Spot on Macadamia in Brazil

Cited by 15 publications

References 3 publications

Occurrence of leaf spot disease on date palm caused by Neopestalotiopsis clavispora in Iran

Occurrence of leaf spot disease on date palm caused by Neopestalotiopsis clavispora in Iran

Molecular methods for the detection and quantification of Pestalotiopsis and Neopestalotiopsis inoculum associated with macadamia

Neopestalotiopsis Species Associated with Flower Diseases of Macadamia integrifolia in Australia

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