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Characterization of Diaporthe species on Camelliaoleifera in Hunan Province, with descriptions of two new species.

ABSTRACT: Tea-oil tree (Camelliaoleifera Abel.) is an important edible oil woody plant with a planting area over 3,800,000 hectares in southern China. Species of Diaporthe inhabit a wide range of plant hosts as plant pathogens, endophytes and saprobes. At present, relatively little is known about the taxonomy and genetic diversity of Diaporthe on C.oleifera. Here, we conducted an extensive field survey in Hunan Province in China to identify and characterise Diaporthe species associated with tea-oil leaf spots. As a result, eleven isolates of Diaporthe were obtained from symptomatic C.oleifera leaves. These isolates were studied by applying a polyphasic approach including morphological and phylogenetic analyses of partial ITS, cal, his3, tef1 and tub2 gene regions. Two new Diaporthe species (D.camelliae-oleiferae and D.hunanensis) were proposed and described herein, and C.oleifera was revealed to be new host records of D.hubeiensis and D.sojae. This study indicated there is a potential of more undiscovered Diaporthe species from C.oleifera in China.

SUBMITTER: Yang Q

PROVIDER: S-EPMC8545784 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Characterization of Diaporthe species on Camelliaoleifera in Hunan Province, with descriptions of two new species.

Yang Qin Q Tang Jie J Zhou Guo Y GY

MycoKeys 20211018

Tea-oil tree (Camelliaoleifera Abel.) is an important edible oil woody plant with a planting area over 3,800,000 hectares in southern China. Species of Diaporthe inhabit a wide range of plant hosts as plant pathogens, endophytes and saprobes. At present, relatively little is known about the taxonomy and genetic diversity of Diaporthe on C.oleifera. Here, we conducted an extensive field survey in Hunan Province in China to identify and characterise Diaporthe spe ...[more]

PMID: 34720645

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Project description:A preliminary study was carried out on the insect fauna of Al-Baha Province, south-western part of Saudi Arabia. A total number of 582 species and subspecies (few identified only to the genus level) belonging to 129 families and representing 17 orders were recorded. Two of these species are described as new, namely: Monomorium sarawatensis Sharaf & Aldawood, sp. n. [Formicidae, Hymenoptera] and Anthrax alruqibi El-Hawagry sp. n. [Bombyliidae, Diptera]. Another eight species are recorded for the first time in Saudi Arabia, namely: Xiphoceriana arabica (Uvarov, 1922) [Pamphagidae, Orthoptera], Pyrgomorpha conica (Olivier, 1791) [Pyrgomorphidae, Orthoptera], Catopsilia florella (Fabricius, 1775) [Pieridae, Lepidoptera], Anthrax chionanthrax (Bezzi, 1926) [Bombyliidae, Diptera], Spogostylum near tripunctatum Pallas in Wiedemann, 1818 [Bombyliidae, Diptera], Cononedys dichromatopa (Bezzi, 1925) [Bombyliidae, Diptera], Mydas sp. [Mydidae, Diptera], and Hippobosca equina Linnaeus, 1758 [Hippoboscidae, Diptera]. Al-Baha Province is divided by huge and steep Rocky Mountains into two main sectors, a lowland coastal plain at the west, known as "Tihama", and a mountainous area with an elevation of 1500 to 2450 m above sea level at the east, known as "Al-Sarat or Al-Sarah" which form a part of Al-Sarawat Mountains range. Insect species richness in the two sectors (Tihama and Al-Sarah) was compared, and the results showed that each of the two sectors of Al-Baha Province has a unique insect community. The study generally concluded that the insect faunal composition in Al-Baha Province has an Afrotropical flavor, with the Afrotropical elements predominant, and a closer affiliation to the Afrotropical region than to the Palearctic region or the Eremic zone. Consequently, we tend to agree with those biogeographers who consider that parts of the Arabian Peninsula, including Al-Baha Province, should be included in the Afrotropical region rather than in the Palaearctic region or the Eremic zone.

Dataset Information

Characterization of Diaporthe species on Camelliaoleifera in Hunan Province, with descriptions of two new species.

Publications

Characterization of <i>Diaporthe</i> species on <i>Camelliaoleifera</i> in Hunan Province, with descriptions of two new species.

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