@article{PAR00003425, title = {{E}ffect of seawater-freshwater cross-transplantations on viral dynamics and bacterial diversity and production}, author = {{B}onilla-{F}indji, {O}. and {R}ochelle {N}ewall, {E}mma and {W}einbauer, {M}.{G}. and {P}izay, {M}.{D}. and {K}erros, {M}.{E}. and {G}attuso, {J}.{P}.}, editor = {}, language = {{ENG}}, abstract = {{D}ilution experiments were carried out to investigate the community composition and the metabolic response of seawater and freshwater bacteria to cross-transplantation, and the effects of nor.-indigenous bacterial hosts on viral dynamics. {C}hanges in viral and bacterial abundance and production, as {W}ell as bacterial respiration, carbon demand and diversity were regularly monitored over a 6 d period. {B}acterial production in the transplanted seawater ({SB}-t) and freshwater ({FB}-t) bacteria treatments was stimulated up to 256 and 221 %, respectively, compared to controls. {T}he stimulation of bacterial production and carbon demand was accompanied by a decrease in bacterial richness. {N}et viral production was stimulated by 81% in {SB}-t and repressed by 75% in {FB}-t. {T}ransplantation increased the virus-induced mortality of marine bacteria, but decreased it for freshwater bacteria. {T}hese results suggest that (1) marine bacteria can readily oxidize freshwater dissolved organic matter, and (2) freshwater viruses might be able to infect marine hosts, thus highlighting their potential role in fueling bacterial growth under resource stress or nutrient-depleted conditions.}, keywords = {{T}ransplantation ; {B}acterial production ; {B}acterial richness ; {V}irus}, booktitle = {}, journal = {{A}quatic {M}icrobial {E}cology}, volume = {54}, numero = {1}, pages = {1--11}, ISSN = {0948-3055}, year = {2009}, DOI = {10.3354/ame01256}, URL = {https://www.documentation.ird.fr/hor/{PAR}00003425}, }