H2O2 is required for optimal establishment of the Medicago sativa/Sinorhizobium meliloti symbiosis.
The symbiotic interaction between Medicago sativa and Sinorhizobium meliloti RmkatB(++) overexpressing the housekeeping catalase katB is delayed, and this delay is combined with an enlargement of infection threads. This result provides evidence that H(2)O(2) is required for optimal progression of infection threads through the root hairs and plant cell layers.
Jamet
Alexandre
A
Interactions Plantes-Microorganismes et Santé Végétale, UMR IPMSV INRA 1064 - CNRS 6192, Université de Nice-Sophia Antipolis, Centre Sophia Agrobiotech, 400 route des chappes, BP 167, F-06903 Sophia Antipolis, France.
Mandon
Karine
K
Puppo
Alain
A
Hérouart
Didier
D
D002374:Catalase / Q000235:genetics / Q000378:metabolism; D015870:Gene Expression; D006861:Hydrogen Peroxide / Q000378:metabolism*; D000455:Medicago sativa / Q000378:metabolism / Q000382:microbiology*; D053204:Root Nodules, Plant / Q000166:cytology / Q000378:metabolism / Q000382:microbiology; D016962:Sinorhizobium meliloti / Q000235:genetics / Q000378:metabolism*; D013559:Symbiosis / Q000502:physiology*
D006861:Hydrogen Peroxide; D002374:Catalase