Carbon utilization and growth-inhibition of citrus-colonizing Phyllosticta species

TY - JOUR

T1 - Carbon utilization and growth-inhibition of citrus-colonizing Phyllosticta species

AU - Buijs, Valerie A

AU - Zuijdgeest, Xander C L

AU - Groenewald, Johannes Z

AU - Crous, Pedro W

AU - de Vries, Ronald P

N1 - Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved.

PY - 2021/10

Y1 - 2021/10

N2 - The genus Phyllosticta includes both endophytic and phytopathogenic species that occur on a broad range of plant hosts, including Citrus. Some pathogenic species cause severe disease, such as Phyllosticta citricarpa, the causal agent of Citrus Black Spot (CBS). In contrast, other species, such as Phyllosticta capitalensis, have an endophytic lifestyle in numerous plant hosts. Carbon utilization capabilities are hypothesized to influence both host range and lifestyle, and are in part determined by the set of Carbohydrate Active Enzyme (CAZyme) encoding genes of a species. In this study, carbon utilization capabilities of five Phyllosticta species were determined, as well as the CAZyme repertoire (CAZome) encoded in their genomes. Little variation was found among species in terms of carbon utilization capabilities and CAZome. However, one of the tested carbon sources, sugar beet pulp (SBP), inhibited growth of the plant pathogens, also when combined with another carbon source, while endophytic species remained unaffected.

AB - The genus Phyllosticta includes both endophytic and phytopathogenic species that occur on a broad range of plant hosts, including Citrus. Some pathogenic species cause severe disease, such as Phyllosticta citricarpa, the causal agent of Citrus Black Spot (CBS). In contrast, other species, such as Phyllosticta capitalensis, have an endophytic lifestyle in numerous plant hosts. Carbon utilization capabilities are hypothesized to influence both host range and lifestyle, and are in part determined by the set of Carbohydrate Active Enzyme (CAZyme) encoding genes of a species. In this study, carbon utilization capabilities of five Phyllosticta species were determined, as well as the CAZyme repertoire (CAZome) encoded in their genomes. Little variation was found among species in terms of carbon utilization capabilities and CAZome. However, one of the tested carbon sources, sugar beet pulp (SBP), inhibited growth of the plant pathogens, also when combined with another carbon source, while endophytic species remained unaffected.

KW - CAZymes

KW - Citrus black spot

KW - Fungal plant pathogens

KW - Sugar beet pulp

U2 - 10.1016/j.funbio.2021.05.003

DO - 10.1016/j.funbio.2021.05.003

M3 - Article

C2 - 34537177

SN - 1878-6146

VL - 125

SP - 815

EP - 825

JO - Fungal Biology

JF - Fungal Biology

IS - 10

ER -