@article{fdi:010081335,
  title = {{P}earl millet genotype impacts microbial diversity and enzymatic activities in relation to root-adhering soil aggregation},
  author = {{N}dour, {P}apa {M}amadou {S}itor and {B}arry, {C}. {M}. and {T}ine, {D}. and {D}e la {F}uente {C}anto, {C}arla and {G}ueye, {M}. and {B}arakat, {M}. and {O}rtet, {P}. and {A}chouak, {W}. and {N}doye, {I}. and {S}ine, {B}. and {L}aplaze, {L}aurent and {H}eulin, {T}. and {C}ournac, {L}aurent},
  editor = {},
  language = {{ENG}},
  abstract = {{A}ims {T}he interactions between plant roots and the associated microbiota impact soil aggregation, water retention and plant nutrient availability. {T}hus, selection of plant genotypes that promote microbial species involved in root-adhering soil aggregation and rhizosheath formation could help improve yield sustainably. {H}ere, we tested pearl millet genotypic variation in both root-adhering soil aggregation, microbiological and biochemical characteristics. {M}ethods {A} collection of 181 pearl millet inbred lines was phenotyped for their rhizosheath size, and 13 contrasting genotypes were selected and grown under field conditions, and their root-adhering soil ({RAS}) was sampled. {M}icrobial biomass, p{H}, mineral {N} content and six enzymatic activities involved in main nutrients cycles were analyzed, and metabarcoding of 16{S} r{DNA} and {ITS} were performed for bacterial and fungal diversity. {R}esults {E}nzymatic activities (chitinase, acid phosphomonoesterase, {FDA}-hydrolysis and beta-glucosidase) were higher in {RAS} of larger rhizosheath lines than that of smaller rhizosheath one. {B}acterial beta-diversity showed a separation of the most contrasting lines in the principal coordinate analysis performed with the {B}ray-{C}urtis distance matrix. {S}ome bacteria from the {G}aiellaceae and {S}phingomonadaceae families and the {B}radyrhizobium and {M}esorhizobium genera were associated with the large rhizosheath phenotype. {C}oncerning the fungal community, we noticed a negative correlation between the specific richness and the rhizosheath size and {T}richoderma genus was positively associated to the rhizosheath size. {C}onclusions {T}his study demonstrates that in pearl millet, the rhizosheath size is related to soil nutrient dynamics and microbiota diversity. {H}owever, it also shows that other factors shape this trait and their relative importance must be determined.},
  keywords = {{P}earl millet ; {R}hizosphere microbial diversity ; {R}hizosphere enzymatic activities ; {R}hizosheath ; {M}etabarcoding},
  booktitle = {},
  journal = {{P}lant and {S}oil},
  volume = {464},
  numero = {1-2},
  pages = {109--129},
  ISSN = {0032-079{X}},
  year = {2021},
  DOI = {10.1007/s11104-021-04917-w},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081335},
}