Plant-mediated interspecific horizontal transmission of an intracellular symbiont in insects

被引:77
|
作者
Gonella, Elena [1 ]
Pajoro, Massimo [1 ]
Marzorati, Massimo [2 ]
Crotti, Elena [2 ]
Mandrioli, Mauro [3 ]
Pontini, Marianna [1 ]
Bulgari, Daniela [4 ]
Negri, Ilaria [1 ]
Sacchi, Luciano [5 ]
Chouaia, Bessem [2 ]
Daffonchio, Daniele [2 ,6 ]
Alma, Alberto [1 ]
机构
[1] Univ Turin, Dipartimento Sci Agr Forestali & Alimentari DISAF, Grugliasco 10095, Italy
[2] Univ Milan, Dipartimento Sci Alimenti, Ambiente DeFENS, Nutr, I-20133 Milan, Italy
[3] Univ Modena & Reggio Emilia, Dipartimento Sci Vita, I-41100 Modena, Italy
[4] Univ Milan, Dipartimento Sci Agr & Ambientali Prod, Terr, Agroenergia, I-20133 Milan, Italy
[5] Univ Pavia, Dipartimento Biol & Biotecnol L Spallanzani, I-27100 Pavia, Italy
[6] King Abdullah Univ Sci & Technol, BESE Div, Thuwal 239556900, Saudi Arabia
来源
SCIENTIFIC REPORTS | 2015年 / 5卷
关键词
BACTERIAL SYMBIONT; CYTOPLASMIC INCOMPATIBILITY; SECONDARY SYMBIONTS; PREDATORY MITE; CARDINIUM; WOLBACHIA; INFECTION; HYMENOPTERA; FITNESS; PARTHENOGENESIS;
D O I
10.1038/srep15811
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Intracellular reproductive manipulators, such as Candidatus Cardinium and Wolbachia, are vertically transmitted to progeny but rarely show co-speciation with the host. In sap-feeding insects, plant tissues have been proposed as alternative horizontal routes of interspecific transmission, but experimental evidence is limited. Here we report results from experiments that show that Cardinium is horizontally transmitted between different phloem sap-feeding insect species through plants. Quantitative PCR and in situ hybridization experiments indicated that the leafhopper Scaphoideus titanus releases Cardinium from its salivary glands during feeding on both artificial media and grapevine leaves. Successional time-course feeding experiments with S. titanus initially fed sugar solutions or small areas of grapevine leaves followed by feeding by the phytoplasma vector Macrosteles quadripunctulatus or the grapevine feeder Empoasca vitis revealed that the symbionts were transmitted to both species. Explaining interspecific horizontal transmission through plants improves our understanding of how symbionts spread, their lifestyle and the symbiont-host intermixed evolutionary pattern.
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页数:10
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