Species phylogeny, ecology, and root traits as predictors of root exudate composition

0575429 - BÚ 2024 RIV GB eng J - Journal Article
Rathore, Nikita - Hanzelková, Věra - Dostálek, Tomáš - Semerád, Jaroslav - Schnablová, Renáta - Cajthaml, Tomáš - Münzbergová, Zuzana
Species phylogeny, ecology, and root traits as predictors of root exudate composition.
New Phytologist. Roč. 239, č. 4 (2023), s. 1212-1224. ISSN 0028-646X. E-ISSN 1469-8137
R&D Projects: GA ČR GA20-01813S
Institutional support: RVO:67985939 ; RVO:61388971
Keywords : exudate * root * phylogeny
OECD category: Plant sciences, botany; Environmental sciences (social aspects to be 5.7) (MBU-M)
Impact factor: 9.4, year: 2022
Method of publishing: Open access
https://doi.org/10.1111/nph.19060

We measured different root morphological and biochemical traits (including exudate profiles) of 65 plant species grown in a controlled system. We tested phylogenetic conservatism in traits and disentangled the individual and overlapping effects of phylogeny and species ecology on traits. We also predicted root exudate composition using other root traits.
Phylogenetic signal differed greatly among root traits, with the strongest signal in phenol content in plant tissues. Interspecific variation in root traits was partly explained by species ecology, but phylogeny was more important in most cases. Species exudate composition could be partly predicted by specific root length, root dry matter content, root biomass, and root diameter, but a large part of variation remained unexplained.
In conclusion, root exudation cannot be easily predicted based on other root traits and more comparative data on root exudation are needed to understand their diversity.
Permanent Link: https://hdl.handle.net/11104/0345217