Intraspecific plant-soil feedbacks alter root traits in a perennial grass DOI Creative Commons
Ceyda Kural-Rendon, Natalie E. Ford,

Kara Hooser

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Март 14, 2025

Drought is a common stressor faced by plants and their associated microbiomes. Projected climate data point toward an increase in the severity frequency of extreme precipitation events, such as drought. Previous research has shown that long-term exposure to drought can shape plants' genomes, resulting genetic variation for tolerance. We hypothesized these changes also affect patterns microbial colonization rhizosphere, potentially feeding back influence plant responses. Here, we tested 33 rhizosphere soils conditioned genotypes Tripsacum dactyloides (eastern gamagrass) originated from native populations across gradient southern plains United States. used inocula fully factorial experiment test responses conspecific differentially under or well-watered conditions. Variation aboveground traits shoot length, weight, root-to-shoot ratios was primarily explained watering treatment. However, many belowground traits, root anatomical architectural were more likely be affected genotype conditioning plant. Of measured, only aerenchyma area interaction between current treatment Ultimately, both altered physiological microbiome. The differential intraspecies plant-soil feedback dynamics driven local adaptation will key understanding future rapidly shifting climates, restoration projects agricultural systems.

Язык: Английский

Revisiting the root economics space—its applications, extensions and nuances advance our understanding of fine-root functioning DOI Creative Commons
Elsa Matthus, Marie J. Zwetsloot, Benjamin M. Delory

и другие.

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Язык: Английский

Процитировано

2
Higher Plant Diversity Does Not Moderate the Influence of Changing Rainfall Regimes on Plant–Soil Feedback of a Semi‐Arid Grassland DOI Creative Commons
Xiliang Li, G. Kenny Png, Zhen Zhang

и другие.

Global Change Biology, Год журнала: 2025, Номер 31(3)

Опубликована: Март 1, 2025

Climate change is expected to increase the frequency of severe droughts, but it remains unclear whether soil biotic conditioning by plant communities with varying species richness or functional group diversity moderate plant-soil feedback (PSF)-an important ecosystem process driving community dynamics-under altered rainfall regimes. We conducted a two-phase PSF experiment test how affects under different In Phase 1, we set up mesocosms 15 assemblages composed two grasses, forbs and nitrogen-fixing legumes [one, two, three, six from one, three group(s)] common semi-arid eastern Eurasian Steppe. Mesocosms were subjected amounts (ambient, 50% reduction) crossed frequencies for growing season (~3 months). Conditioned each mesocosm was then used in 2 inoculate (7% v/v) sterilised planted same as 1 grown 8 weeks. Simultaneously, calculate based on biomass measured at end 2. Feedback effects differed amongst assemblages, not significantly reduced treatments within any assemblage. This suggests that examined interactions between microbial resistant simulated reductions increasing did Moreover, lessen magnitude differences ambient treatments. Collectively, these findings advance our understanding diversity's potential mitigate climate PSF, showing grasslands, higher may responses regimes highlighting importance considering species-specific traits interaction stability.

Язык: Английский

Процитировано

0
Intraspecific plant-soil feedbacks alter root traits in a perennial grass DOI Creative Commons
Ceyda Kural-Rendon, Natalie E. Ford,

Kara Hooser

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Март 14, 2025

Drought is a common stressor faced by plants and their associated microbiomes. Projected climate data point toward an increase in the severity frequency of extreme precipitation events, such as drought. Previous research has shown that long-term exposure to drought can shape plants' genomes, resulting genetic variation for tolerance. We hypothesized these changes also affect patterns microbial colonization rhizosphere, potentially feeding back influence plant responses. Here, we tested 33 rhizosphere soils conditioned genotypes Tripsacum dactyloides (eastern gamagrass) originated from native populations across gradient southern plains United States. used inocula fully factorial experiment test responses conspecific differentially under or well-watered conditions. Variation aboveground traits shoot length, weight, root-to-shoot ratios was primarily explained watering treatment. However, many belowground traits, root anatomical architectural were more likely be affected genotype conditioning plant. Of measured, only aerenchyma area interaction between current treatment Ultimately, both altered physiological microbiome. The differential intraspecies plant-soil feedback dynamics driven local adaptation will key understanding future rapidly shifting climates, restoration projects agricultural systems.

Язык: Английский

Процитировано

0