@article{fdi:010088670,
  title = {{S}ymbiotic compatibility between rice cultivars and arbuscular mycorrhizal fungi genotypes affects rice growth and mycorrhiza-induced resistance},
  author = {{G}uigard, {L}. and {J}obert, {L}. and {B}usset, {N}icolas and {M}oulin, {L}ionel and {C}zernic, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}ntroduction: {A}rbuscular mycorrhizal fungi ({AMF}) belong to the {G}lomeromycota clade and can form root symbioses with 80% of {A}ngiosperms, including crops species such as wheat, maize and rice. {B}y increasing nutrient availability, uptake and soil anchoring of plants, {AMF} can improve plant's growth and tolerance to abiotic stresses. {AMF} can also reduce symptoms and pathogen load on infected plants, both locally and systemically, through a phenomenon called mycorrhiza induced resistance ({MIR}). {T}here is scarce information on rice mycorrhization, despite the high potential of this symbiosis in a context of sustainable water management in rice production systems.{M}ethods: {W}e studied the symbiotic compatibility (global mycorrhization & arbuscules intensity) and {MIR} phenotypes between six rice cultivars from two subspecies (indica: {IR}64 & {P}hka {R}umduol; japonica: {N}ipponbare, {K}itaake, {A}zucena & {Z}honghua 11) and three {AMF} genotypes ({F}unneliformis mosseae {FR}140 ({FM}), {R}hizophagus irregularis {DAOM}197198 ({RIR}) & {R}. intraradices {FR}121 ({RIN})). {T}he impact of mycorrhization on rice growth and defence response to {X}anthomonas oryzae pv oryzae ({X}oo) infection was recorded via both phenotypic indexes and rice marker gene expression studies.{R}esults: {A}ll three {AMF} genotypes colonise the roots of all rice varieties, with clear differences in efficiency depending on the combination under study (from 27% to 84% for {P}hka {R}umduol-{RIN} and {N}ipponbare-{RIR} combinations, respectively). {M}ycorrhization significantly (alpha=0.05) induced negative to beneficial effects on rice growth (impact on dry weight ranging from -21% to 227% on {A}zucena-{FM} and {K}itaake-{RIN} combinations, respectively), and neutral to beneficial effects on the extent of {X}oo symptoms on leaves (except for {A}zucena-{RIN} combination which showed a 68% increase of chlorosis). {R}. irregularis {DAOM}197198 was the most compatible {AMF} partner of rice, with high root colonisation intensity (84% of {N}ipponbare's roots hyphal colonisation), beneficial effects on rice growth (dry weight +28% ({IR}64) to +178% ({K}itaake)) and decrease of {X}oo-induced symptoms (-6% ({N}ipponbare) to -27% ({IR}64)). {T}ranscriptomic analyses by {RT}-q{PCR} on leaves of two rice cultivars contrasting in their association with {AMF} show two different patterns of response on several physiological marker genes.{D}iscussion: {O}verall, the symbiotic compatibility between rice cultivars and {AMF} demonstrates adequate colonization, effectively restricting the nutrient starvation response and mitigating symptoms of phytopathogenic infection.},
  keywords = {{O}ryza sativa ; plant-fungi interactions ; biological control ; {X}anthomonas ; oryzae ; symbiotic association ; biotic stress},
  booktitle = {},
  journal = {{F}rontiers in {P}lant {S}cience},
  volume = {14},
  numero = {},
  pages = {1278990 [17 ]},
  ISSN = {1664-462{X}},
  year = {2023},
  DOI = {10.3389/fpls.2023.1278990},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088670},
}