Association between Temperature and Reproductive Fitness of Diaphorina citri Infected with Candidatus Liberibacter Asiaticus

Diaphorina citri is a serious insect pest of citrus and an insect vector of Candidatus Liberibacter asiaticus (CLas) that causes Huanglongbing disease (citrus greening). In this study, we investigated the effect of the CLas pathogen on the life history parameters of D. citri at different temperature...

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Bibliographic Details
Published inAgronomy (Basel) Vol. 12; no. 4; p. 815
Main Authors Hussain, Mubasher, Bano, Summyya, Qasim, Muhammad, Gao, Jing, Arthurs, Steven P., Wang, Liande, Qiu, Dongliang, Mao, Runqian
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.04.2022
Subjects
Adults
Bacterial diseases
Bacterial infections
Bioassays
biology
Candidatus Liberibacter asiaticus
Citrus fruits
Citrus greening
Climate change
Diaphorina citri
disease epidemiology
Eggs
Fecundity
Flowers & plants
High temperature
Humidity
Infections
Insects
Life history
Longevity
pathogen
Pathogens
Plant bacterial diseases
Plant diseases
Reproductive fitness
Software
Survival
Survival analysis
Variance analysis
Zoology
China
Singapore
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Summary:Diaphorina citri is a serious insect pest of citrus and an insect vector of Candidatus Liberibacter asiaticus (CLas) that causes Huanglongbing disease (citrus greening). In this study, we investigated the effect of the CLas pathogen on the life history parameters of D. citri at different temperature regimes. Our results demonstrated that the survival rate of first to fifth instar CLas-positive and CLas-negative D. citri fluctuate with the change in temperature over the range of 16–35 °C. Meanwhile, the mean developmental time (52.5 d) (d = day(s)) and adult longevity (5.2 d) of the CLas-positive psyllids was longer as compared to CLas-negative psyllids mean developmental time (32.81 d) and adult longevity (3.50 d) at the low- and high-temperature regimes (16 and 35 °C). However, at high temperature regimes, the significant effect of CLas-bacteria on D. citri fecundity was higher than the corresponding non-significant effect on their survivorship when compared to non-vectored psyllids. These results indicate a long-term, stable evolutionary relationship among vector-pathogen and climate change.
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy12040815