The bacterial community associated with rose-scented geranium (Pelargonium graveolens) leaves responds to anthracnose symptoms

Background The fungus Colletotrichum is a plant pathogen that causes the anthracnose disease, resulting in huge losses in various crops including the rose-scented geranium (Pelargonium graveolens). Although the bacterial community associated with plants has an important role in the establishment of...

Full description

Saved in:
Bibliographic Details
Published in:Plant and soil 2017-05, Vol.414 (1/2), p.69-79
Main Authors: da Silva, Thais Freitas, Vollú, Estebanez, Marques, Joana Montezano, Salles, Joana Falcão, Seldin, Lucy
Format: Article
Language:English
Subjects:
Actinobacteria
Bacteria
Biomedical and Life Sciences
Colletotrichum
Ecology
Flowers & plants
Fungi
Genetic aspects
Geranium
Geraniums
Leaves
Life Sciences
Pathogenic microorganisms
Pelargonium graveolens
Plant diseases
Plant Physiology
Plant Sciences
Plants
Regular Article
Rhizosphere
Soil microbiology
Soil Science & Conservation
Streptococcus
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Background The fungus Colletotrichum is a plant pathogen that causes the anthracnose disease, resulting in huge losses in various crops including the rose-scented geranium (Pelargonium graveolens). Although the bacterial community associated with plants has an important role in the establishment of plant diseases, little is known about what happens in P. graveolens. Aims To increase the knowledge about the bacterial community associated with P. graveolens and its relationship with anthracnose disease symptoms. Methods Quantitative PCR and high-throughput sequencing were combined to determine the presence of the fungus Colletotrichum and to reveal the bacterial communities associated with different plant parts - root, stem and leaf-and in the rhizosphere and bulk soil, and also to determine the respective bacterial communities associated with P. graveolens leaves symptomatic and asymptomatic for anthracnose disease. Results The fungus Colletotrichum was detected in all plant parts and in the surrounding soil. Bacterial communities varied spatially in plants, and the disease symptoms also influenced the composition of the bacterial community. Abundances of operational taxonomic units (OTUs) assigned to the phylum Actinobacteria and to the genus Streptococcus were greatly increased in asymptomatic leaves. Conclusions The bacterial community associated to geranium leaves responds to anthracnose symptoms.
ISSN:0032-079X
1573-5036
DOI:10.1007/s11104-016-3102-z