Root cap is an important determinant of rhizosphere microbiome assembly

0574694 - MBÚ 2024 RIV GB eng J - Článek v odborném periodiku
Rueger, L. - Ganther, M. - Freudenthal, J. - Jansa, Jan - Heintz-Buschart, A. - Tarkka, M. T. - Bonkowski, M.
Root cap is an important determinant of rhizosphere microbiome assembly.
New Phytologist. Roč. 239, č. 4 (2023), s. 1434-1448. ISSN 0028-646X. E-ISSN 1469-8137
Grant CEP: GA ČR(CZ) GA21-07275S
Institucionální podpora: RVO:61388971
Klíčová slova: bacteria * maize * molecular control points * protists * rhizosphere microbiome * root cap * root exudates * root hairs
Obor OECD: Microbiology
Impakt faktor: 9.4, rok: 2022
Způsob publikování: Open access
https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.19002

Plants impact the development of their rhizosphere microbial communities. It is yet unclear to what extent the root cap and specific root zones contribute to microbial community assembly.To test the roles of root caps and root hairs in the establishment of microbiomes along maize roots (Zea mays), we compared the composition of prokaryote (archaea and bacteria) and protist (Cercozoa and Endomyxa) microbiomes of intact or decapped primary roots of maize inbred line B73 with its isogenic root hairless (rth3) mutant. In addition, we tracked gene expression along the root axis to identify molecular control points for an active microbiome assembly by roots.Absence of root caps had stronger effects on microbiome composition than the absence of root hairs and affected microbial community composition also at older root zones and at higher trophic levels (protists). Specific bacterial and cercozoan taxa correlated with root genes involved in immune response.Our results indicate a central role of root caps in microbiome assembly with ripple-on effects affecting higher trophic levels and microbiome composition on older root zones.
Trvalý link: https://hdl.handle.net/11104/0344908