Journal ArticleDOI
Facultative Symbionts in Aphids and the Horizontal Transfer of Ecologically Important Traits
TLDR
Experiments on pea aphids have demonstrated that facultative symbionts protect against entomopathogenic fungi and parasitoid wasps, ameliorate the detrimental effects of heat, and influence host plant suitability.Abstract:
Aphids engage in symbiotic associations with a diverse assemblage of heritable bacteria. In addition to their obligate nutrient-provisioning symbiont, Buchnera aphidicola, aphids may also carry one or more facultative symbionts. Unlike obligate symbionts, facultative symbionts are not generally required for survival or reproduction and can invade novel hosts, based on both phylogenetic analyses and transfection experiments. Facultative symbionts are mutualistic in the context of various ecological interactions. Experiments on pea aphids (Acyrthosiphon pisum) have demonstrated that facultative symbionts protect against entomopathogenic fungi and parasitoid wasps, ameliorate the detrimental effects of heat, and influence host plant suitability. The protective symbiont, Hamiltonella defensa, has a dynamic genome, exhibiting evidence of recombination, phage-mediated gene uptake, and horizontal gene transfer and containing virulence and toxin-encoding genes. Although transmitted maternally with high fidelity, facultative symbionts occasionally move horizontally within and between species, resulting in the instantaneous acquisition of ecologically important traits, such as parasitoid defense.read more
Citations
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Journal ArticleDOI
The gut microbiota of insects - diversity in structure and function.
Philipp Engel,Nancy A. Moran +1 more
TL;DR: Gut bacteria of other insects have also been shown to contribute to nutrition, protection from parasites and pathogens, modulation of immune responses, and communication, and the extent of these roles is still unclear and awaits further studies.
Journal ArticleDOI
Genome Sequence of the Pea Aphid Acyrthosiphon pisum
Stephen Richards,Richard A. Gibbs,Nicole M. Gerardo,Nancy A. Moran,Atsushi Nakabachi,David L. Stern,Denis Tagu,Alex C.C. Wilson,Donna M. Muzny,Christie Kovar,Andy Cree,Joseph Chacko,Mimi N. Chandrabose,Marvin Diep Dao,Huyen Dinh,Ramatu Ayiesha Gabisi,Sandra Hines,Jennifer Hume,Shalini N. Jhangian,Vandita Joshi,Lora Lewis,Yih Shin Liu,John Lopez,Margaret Morgan,Ngoc Nguyen,Geoffrey Okwuonu,San Juana Ruiz,Jireh Santibanez,Rita A. Wright,Gerald R. Fowler,Matthew Hitchens,Ryan J. Lozado,Charles Moen,David Steffen,James T. Warren,Jingkun Zhang,Lynne V. Nazareth,Dean Chavez,Clay Davis,Sandra L. Lee,Bella Mayurkumar Patel,Ling Ling Pu,Stephanie Bell,Angela Jolivet Johnson,Selina Vattathil,Rex Lee Williams,Shuji Shigenobu,Shuji Shigenobu,Phat M. Dang,Mizue Morioka,Takema Fukatsu,Toshiaki Kudo,Shin-ya Miyagishima,Huaiyang Jiang,Kim C. Worley,Fabrice Legeai,Jean-Pierre Gauthier,Olivier Collin,Lan Zhang,Hsiu Chuan Chen,Olga Ermolaeva,Wratko Hlavina,Yuri Kapustin,Boris Kiryutin,Paul Kitts,Donna Maglott,Terence Murphy,Kim D. Pruitt,Victor Sapojnikov,Alexandre Souvorov,Françoise Thibaud-Nissen,Francisco Câmara,Roderic Guigó,Mario Stanke,Victor V. Solovyev,Peter Kosarev,Don Gilbert,Toni Gabaldón,Jaime Huerta-Cepas,Marina Marcet-Houben,Miguel Pignatelli,Andrés Moya,Claude Rispe,Morgane Ollivier,Hadi Quesneville,Emmanuelle Permal,Carlos Llorens,Ricardo Futami,Dale Hedges,Hugh M. Robertson,Tyler Alioto,Marco Mariotti,Naruo Nikoh,John P. McCutcheon,Gaelen R. Burke,Alexandra Kamins,Amparo Latorre,Peter D. Ashton,Federica Calevro,Hubert Charles,Stefano Colella,Angela E. Douglas,Georg Jander,Derek H. Jones,Gérard Febvay,Lars G. Kamphuis,Philip F. Kushlan,Sandy J. Macdonald,John S Ramsey,Julia Schwartz,Stuart Seah,Gavin H. Thomas,Augusto F. Vellozo,Augusto F. Vellozo,Bodil N. Cass,Patrick H. Degnan,Bonnie L. Hurwitz,Teresa E. Leonardo,Ryuichi Koga,Boran Altincicek,Caroline Anselme,Hagop S. Atamian,Seth M. Barribeau,Martin De Vos,Elizabeth J. Duncan,Jay D. Evans,Murad Ghanim,Abdelaziz Heddi,Isgouhi Kaloshian,Carole Vincent-Monégat,Ben J. Parker,Vicente Pérez-Brocal,Vicente Pérez-Brocal,Yvan Rahbé,Chelsea J. Spragg,Javier Tamames,Daniel Tamarit,Cecilia Tamborindeguy,Andreas Vilcinskas,Ryan D. Bickel,Jennifer A. Brisson,Thomas Butts,Chun-che Chang,Olivier Christiaens,Gregory K. Davis,Elizabeth Duncan,David E. K. Ferrier,Masatoshi Iga,Ralf Janssen,Hsiao-ling Lu,Alistair P. McGregor,Toru Miura,Guy Smagghe,James M Smith,Maurijn van der Zee,Rodrigo A. Velarde,Megan J. Wilson,Peter K. Dearden,Owain R. Edwards,Owain R. Edwards,Karl H.J. Gordon,Roland Hilgarth,Stanley Dean Rider,Dayalan G. Srinivasan,Tom Walsh,Asano Ishikawa,Stéphanie Jaubert-Possamai,Brian Fenton,Wenting Huang,Guillaume Rizk,Dominique Lavenier,Jacques Nicolas,Carole M. Smadja,Jing-Jiang Zhou,Filipe G. Vieira,Xiao Li He,Renhu Liu,Julio Rozas,Linda M. Field,Peter M. Campbell,James C. Carolan,Carol I. J. Fitzroy,Karen T. Reardon,Gerald R. Reeck,Gerald R. Reeck,Karam B. Singh,T. L. Wilkinson,Jurgen Huybrechts,Mohatmed Abdel-latief,Alain Robichon,Jan A. Veenstra,Frank Hauser,Giuseppe Cazzamali,Martina Schneider,Michael Williamson,Elisabeth Stafflinger,Karina K. Hansen,Cornelis J. P. Grimmelikhuijzen,Daniel R. G. Price,Marina C. Caillaud,Eric Van Fleet,Qinghu Ren,John A. Gatehouse,Véronique Brault,Baptiste Monsion,Jason Diaz,Laura Hunnicutt,Ho Jong Ju,Ximo Pechuan,José Aguilar,Teresa Cortes,Benjamín Ortiz-Rivas,David Martínez-Torres,Aviv Dombrovsky,Richard Dale,T.G. Emyr Davies,Martin S. Williamson,Andrew K. Jones,David B. Sattelle,Sally M. Williamson,Adrian J. Wolstenholme,Ludovic Cottret,David G. Heckel,Wayne B. Hunter +223 more
TL;DR: The genome of the pea aphid shows remarkable levels of gene duplication and equally remarkable gene absences that shed light on aspects of aphid biology, most especially its symbiosis with Buchnera.
Journal ArticleDOI
Mutualisms in a changing world: an evolutionary perspective
TL;DR: An evolutionary perspective on mutualism breakdown is developed to complement the ecological perspective, by focusing on three processes: shifts from mutualism to antagonism, switches to novel partners and mutualism abandonment.
Journal ArticleDOI
Bacterial symbionts as mediators of ecologically important traits of insect hosts
TL;DR: Bacterial symbionts play a prominent role in insect nutritional ecology by aiding in digestion of food or providing nutrients that are limited or lacking in the diet.
Journal ArticleDOI
Symbiotic bacterium modifies aphid body color.
Tsutomu Tsuchida,Ryuichi Koga,Mitsuyo Horikawa,Tetsuto Tsunoda,Takashi Maoka,Shogo Matsumoto,Jean-Christophe Simon,Takema Fukatsu +7 more
TL;DR: It is discovered that infection with a facultative endosymbiont of the genus Rickettsiella changes the insects’ body color from red to green in natural populations of the pea aphid.
References
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Journal ArticleDOI
Characterization of a facultative endosymbiotic bacterium of the pea aphid Acyrthosiphon pisum.
Tsutomu Tsuchida,Tsutomu Tsuchida,Ryuichi Koga,Xian-Ying Meng,Tadao Matsumoto,Takema Fukatsu +5 more
TL;DR: The sporadic incidences of PAUS infection without reflecting the aphid phylogeny can be best explained by occasional horizontal transfers of the symbiont across aphid lineages.
Journal ArticleDOI
Prevalence of a non-male-killing spiroplasma in natural populations of Drosophila hydei.
Daisuke Kageyama,Daisuke Kageyama,Hisashi Anbutsu,Masayoshi Watada,Takahiro Hosokawa,Takahiro Hosokawa,Masakazu Shimada,Takema Fukatsu +7 more
TL;DR: In this study, spiroplasma infection without causing male-killing was shown to be prevalent in Japanese populations of Drosophila hydei, and infection densities in the natural host, D. hy dei, were significantly lower than those of the male- killing spiroPLasma NSRO, which was in accordance with the hypothesis that a threshold infection density is needed for the spiroPlasma-induced male- Killing expression.
Journal ArticleDOI
Aphid-Symbiotic Bacteria Cultured in Insect Cell Lines
TL;DR: It is suggested that the two bacteria persist in aphids because competition between them is limited by differences in tropism for insect tissues or cell types.
Journal ArticleDOI
Role of Host Nutrition in Symbiont Regulation: Impact of Dietary Nitrogen on Proliferation of Obligate and Facultative Bacterial Endosymbionts of the Pea Aphid Acyrthosiphon pisum
TL;DR: The population density of the obligate symbiont Buchnera aphidicola positively correlated with dietary nitrogen levels and that of the facultative symbionts Serratia symbiotica increased in aphids reared on low-nitrogen diets, indicating distinct regulatory mechanisms in the same insect host.
Journal Article
The in vitro biological activities of synthetic 18-O-methyl mycalamide B, 10-epi-18-O-methyl mycalamide B and pederin.
TL;DR: Demonstration that 18-O-methyl mycalamide B and the synthetically less complex molecule, pederin, show some tumour cell toxicity indicates that this novel class of compounds should be subjected to preclinical evaluation.