Diversity and species overlap of Botryosphaeriaceae on some trees of Anacardiaceae in disturbed and undisturbed ecosystems in South Africa
type: CreativeWork
description: The Botryosphaeriaceae are common and diverse on native and non-native plants. It has been established that the ability of Botryosphaeriaceae fungi to exist in healthy plant tissues as endophytes facilitates their global movement during the international trade of plants and plant products. It is important to understand whether fungi in the Botryosphaeriaceae have a restricted host range or a limited geographic distribution once introduced into new areas, and how ecosystem disturbances through human activities influence species diversity and distribution of fungi in the Botryosphaeriaceae. The current study explored Botryosphaeriaceae species diversity on native and non-native tree species of Anacardiaceae found in disturbed and undisturbed ecosystems, as well as species overlap of the Botryosphaeriaceae as endophytes and as pathogens in asymptomatic and symptomatic tissues of these trees. In addition, the genetic diversity and population structure of N. parvum, the dominant species occurring on asymptomatic mango fruit were assessed. These questions were addressed by sampling three tree species of Anacardiaceae, namely Sclerocarya birrea (marula), Mangifera indica (mango) and Lannea Schweinfurthii (false marula) in disturbed and undisturbed ecosystems in the Limpopo and Mpumalanga provinces, South Africa. The ecosystem disturbance study identified 11 species of Botryosphaeriaceae, namely Diplodia allocellula, Dothiorella brevicollis, Dothiorella dulcispinae, Dothiorella viticola, Lasiodiplodia crassispora, Lasiodiplodia exigua, Lasiodiplodia gonubiensis, Lasiodiplodia mahajangana, Neofusicoccum parvum, Oblongocollomyces ednahkunjekuae and Oblongocollomyces sp. 1 occurring on native and non-native Anacardiaceae in disturbed and undisturbed ecosystems. Ten of the 11 species were identified on trees in undisturbed ecosystems, while three were identified on trees in disturbed ecosystems. Lasiodiplodia crassispora and L. mahajangana were generalists on trees in disturbed…
abstract: The Botryosphaeriaceae are common and diverse on native and non-native plants. It has been established that the ability of Botryosphaeriaceae fungi to exist in healthy plant tissues as endophytes facilitates their global movement during the international trade of plants and plant products. It is important to understand whether fungi in the Botryosphaeriaceae have a restricted host range or a limited geographic distribution once introduced into new areas, and how ecosystem disturbances through human activities influence species diversity and distribution of fungi in the Botryosphaeriaceae. The current study explored Botryosphaeriaceae species diversity on native and non-native tree species of Anacardiaceae found in disturbed and undisturbed ecosystems, as well as species overlap of the Botryosphaeriaceae as endophytes and as pathogens in asymptomatic and symptomatic tissues of these trees. In addition, the genetic diversity and population structure of N. parvum, the dominant species occurring on asymptomatic mango fruit were assessed. These questions were addressed by sampling three tree species of Anacardiaceae, namely Sclerocarya birrea (marula), Mangifera indica (mango) and Lannea Schweinfurthii (false marula) in disturbed and undisturbed ecosystems in the Limpopo and Mpumalanga provinces, South Africa. The ecosystem disturbance study identified 11 species of Botryosphaeriaceae, namely Diplodia allocellula, Dothiorella brevicollis, Dothiorella dulcispinae, Dothiorella viticola, Lasiodiplodia crassispora, Lasiodiplodia exigua, Lasiodiplodia gonubiensis, Lasiodiplodia mahajangana, Neofusicoccum parvum, Oblongocollomyces ednahkunjekuae and Oblongocollomyces sp. 1 occurring on native and non-native Anacardiaceae in disturbed and undisturbed ecosystems. Ten of the 11 species were identified on trees in undisturbed ecosystems, while three were identified on trees in disturbed ecosystems. Lasiodiplodia crassispora and L. mahajangana were generalists on trees in disturbed…
author: Ramabulana, Elelwani
language: en
keywords: UCTD
date published: 2025-05-16
date modified: 2026-07-27T21:57:31Z
provider: University of Venda
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Venda