Infection by Xanthomonas campestris pv.viticola under temperature increase and carbon dioxide concentrations

The experiments were carried out under controlled conditions to evaluate the impact of increased temperature and concentration of carbon dioxide on infection of Xanthomonas campestris pv viticola, the causal agent of bacterial canker in Vine seedlings. It proceeded the evaluation of the following ep...

Full description

Saved in:
Bibliographic Details
Published in:Comunicata Scientiae 2017-04, Vol.8 (2), p.214-220
Main Authors: Conceição, Jaime Luiz Albuquerque, Angelotti, Francislene, Peixoto, Ana Rosa, Ghini, Raquel
Format: Article
Language:English
Subjects:
Air temperature
Bacteria
bacterial canker
Canker
Carbon dioxide
Carbon dioxide concentration
Climate change
Controlled conditions
Cultivars
Epidemiology
Evaluation
Experimental design
Experiments
Genotypes
Greenhouse effect
Greenhouse gases
Humidity
Incubation period
Infections
Inoculation
Laboratories
Plant diseases
Plant pathology
Seedlings
Temperature
Temperature effects
Variance analysis
Vitis vinifera
Working groups
Xanthomonas campestris
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The experiments were carried out under controlled conditions to evaluate the impact of increased temperature and concentration of carbon dioxide on infection of Xanthomonas campestris pv viticola, the causal agent of bacterial canker in Vine seedlings. It proceeded the evaluation of the following epidemiological components: incubation period (PI), severity (SEV) and using that data were calculated the area under the disease progress curve (AUDPC). It used grape seedlings (Italia, Crimson Seedless, Sugraone and Selection 8) inoculated with bacterial suspension (10^8 CFU mL^(-1)). The experimental design was completely randomized, factorial arrangement 4x4 (cultivar x temperature) and 4x2 (cultivar x carbon dioxide concentration) which was carried out twice. The data were subjected to variance analysis. Increasing temperature reduced bacterium's incubation period with significant differences between genotypes. For Selection 8 and Crimson temperature increase caused enhancement on severity and AUDPC. For Seleção 8 the incubation period (PI) was extended from 7.93 to 30.18 days when the concentration changed from 390 to 770 μmol/mol. The increased CO_2 concentration reduced AACPSD and SEV for Sugraone and Selection 8. The results show that the temperature and carbon dioxide (CO_2) concentration of the air may have different effects on bacterial canker of grapevine.
ISSN:2177-5133
2176-9079
2179-9079
2177-5133
DOI:10.14295/CS.v8i2.1779