Plant–soil feedback under drought: does history shape the future?

Trends in Ecology & Evolution, Год журнала: 2023, Номер 38(8), С. 708 - 718

Опубликована: Март 25, 2023

Plant–soil feedback (PSF) is widely recognised as a driver of plant community composition, but understanding its response to drought remains in infancy. Here, we provide conceptual framework for the role PSF, considering traits, severity, and historical precipitation over ecological evolutionary timescales. Comparing experimental studies where plants microbes do or not share history (through co-sourcing conditioning), hypothesise that with shared experience more positive PSF under subsequent drought. To reflect real-world responses drought, future need explicitly include plant–microbial co-occurrence potential co-adaptation consider experienced by both microbes.

Язык: Английский

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Host genotype-specific rhizosphere fungus enhances drought resistance in wheat

Microbiome, Год журнала: 2024, Номер 12(1)

Опубликована: Март 4, 2024

Abstract Background The severity and frequency of drought are expected to increase substantially in the coming century dramatically reduce crop yields. Manipulation rhizosphere microbiomes is an emerging strategy for mitigating stress agroecosystems. However, little known about mechanisms underlying how drought-resistant plant recruitment specific fungi enhances adaptation drought-sensitive wheats. Here, we investigated microbial community assembly features functional profiles related wheats by amplicon shotgun metagenome sequencing techniques. We then established evident linkages between root morphology traits putative keystone taxa based on inoculation experiments. Furthermore, RNA RT-qPCR were employed explore microbes modify response stresses. Results Our results indicated that host signature, niche compartment, planting site jointly contribute variation soil microbiome adaptation, with a relatively greater effect signature observed community. Importantly, wheat (Yunhan 618) possessed more diverse bacterial fungal than (Chinese Spring), particularly species. In terms interkingdom association networks, variety complex networks. Metagenomics analyses further suggested enriched belonging cultivar had higher investment energy metabolism, carbon cycling, shaped their distinctive tolerance via mediation drought-induced feedback pathways. drives differentiation ecological role cultivable species Mortierella alpine ( M . alpina ) Epicoccum nigrum E. ). successful colonization surface enhanced resistance stresses activation drought-responsive genes (e.g., CIPK9 PP2C30 Notably, found lateral roots hairs significantly suppressed co-colonization drought-enriched fungus drought-depleted Conclusions Collectively, our findings revealed genotypes profoundly influence as well it provides evidence These underpin understanding feedbacks plants during drought, lay foundation steering “beneficial biome” develop resilient productive crops under climate change.

Язык: Английский

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A meta‐analysis on morphological, physiological and biochemical responses of plants with PGPR inoculation under drought stress

Plant Cell & Environment, Год журнала: 2022, Номер 46(1), С. 199 - 214

Опубликована: Окт. 17, 2022

Plant growth-promoting rhizobacteria (PGPR) can help plants to resist drought stress. However, the mechanisms of how PGPR inoculation affect plant status under remain incompletely understood. We performed a meta-analysis response by compiling data from 57 PGPR-inoculation studies, including 2, 387 paired observations on morphological, physiological and biochemical parameters well-watered conditions. compare effect performances among different groups controls treatments. Our results reveal that enables restore themselves drought-stressed near state, C4 recover better stress than C3 plants. Furthermore, is more effective underdrought conditions in increasing biomass, enhancing photosynthesis inhibiting oxidant damage, responses was stronger Additionally, belonging taxa with functional traits have varying degrees drought-resistance effects These are important improve our understanding beneficial enhanced

Язык: Английский

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Plant–Fungi Interactions: Where It Goes?

Biology, Год журнала: 2023, Номер 12(6), С. 809 - 809

Опубликована: Июнь 2, 2023

Fungi live different lifestyles—including pathogenic and symbiotic—by interacting with living plants. Recently, there has been a substantial increase in the study of phytopathogenic fungi their interactions Symbiotic relationships plants appear to be lagging behind, although progressive. Phytopathogenic cause diseases put pressure on survival. Plants fight back against such pathogens through complicated self-defense mechanisms. However, develop virulent responses overcome plant defense reactions, thus continuing deteriorative impacts. positively influence both fungi. More interestingly, they also help protect themselves from pathogens. In light nonstop discovery novel strains, it is imperative pay more attention plant–fungi interactions. Both are responsive environmental changes, therefore construction interaction effects emerged as new field study. this review, we first attempt highlight evolutionary aspect interactions, then mechanism avoid negative impact fungi, fungal strategies defensive once have invaded, finally changes under conditions.

Язык: Английский

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Unraveling plant–microbe interactions: can integrated omics approaches offer concrete answers?

Journal of Experimental Botany, Год журнала: 2023, Номер 75(5), С. 1289 - 1313

Опубликована: Ноя. 9, 2023

Abstract Advances in high throughput omics techniques provide avenues to decipher plant microbiomes. However, there is limited information on how integrated informatics can help deeper insights into plant–microbe interactions a concerted way. Integrating multi-omics datasets transform our understanding of the microbiome from unspecified genetic influences interacting species specific gene-by-gene interactions. Here, we highlight recent progress and emerging strategies crop research review key aspects integration host microbial omics-based be used comprehensive outline complex crop–microbe We describe these technological advances have helped unravel crucial genes pathways that control beneficial, pathogenic, commensal identify knowledge gaps synthesize current limitations approaches. studies which multi-omics-based approaches led improved models community structure function. Finally, recommend holistic integrating achieve precision efficiency data analysis, for biotic abiotic stress contribution microbiota shaping fitness.

Язык: Английский

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Microplastic fibres affect soil fungal communities depending on drought conditions with consequences for ecosystem functions

Environmental Microbiology, Год журнала: 2024, Номер 26(2)

Опубликована: Янв. 10, 2024

Abstract Microplastics affect soil functions depending on drought conditions. However, how their combined effect influences fungi and linkages with ecosystem is still unknown. To address this, we used rhizosphere from a previous experiment in which employed microplastic fibres addition factorial design, evaluated effects fungal communities. decreased richness under well‐watered conditions, likely linked to microplastics leaching toxic substances into the soil, root fineness. Under drought, by contrast, increased pathogen total richness, related positive properties, such as water holding capacity, porosity or aggregation. Soil was attribute most affected drought. altered relationships between point that many of them flipped negative disappeared. The mitigated individual (antagonism), suggesting changes conditions may alter action mode soil. Microplastic harmful can be while improvement properties alleviate

Язык: Английский

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Drought legacy effects on root morphological traits and plant biomass via soil biota feedback

New Phytologist, Год журнала: 2022, Номер 236(1), С. 222 - 234

Опубликована: Июнь 20, 2022

Summary Drought causes soil feedback effects on plant performance. However, how the linkages between conditioned biota and root traits contribute to explain plant–soil (PSF) as a function of drought is unknown. We utilized inoculum from conditioning experiment where grassland species grew under well‐watered conditions, their fungi were analyzed. Under we 21 with those inocula either conspecific or heterospecific soils. At harvest, biomass measured. Negative PSF (higher in than soils) was predominant, favored drought‐conditioned Previous affected relationship fungal groups. Specific surface area (SRSA) higher droughted soils linked an increase saprotroph richness. Overall, diameter mutualist pathogen composition, whereas decrease : shoot pathogenic fungi. legacy affects morphological via biota, even after conditions have disappeared. This provides new insights into role that modulating responses drought.

Язык: Английский

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Different and unified responses of soil bacterial and fungal community composition and predicted functional potential to 3 years’ drought stress in a semiarid alpine grassland

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Март 14, 2023

Introduction Soil microbial communities are key to functional processes in terrestrial ecosystems, and they serve as an important indicator of grasslands status. However, the responses soil potential drought stress semiarid alpine remain unclear. Methods Here, a field experiment was conducted under ambient precipitation control, −20% −40% explore diversity, community composition, predicted grassland located northwest China. Moreover, 16S rRNA gene ITS sequencing were used detect bacterial fungal communities, PICRUST FUNGuild databases predict groups. Results showed substantially changes diversity bacteria fungi, among which is more sensitive than indicating that or structure could still has difficulty maintaining resistance excessive stress. Our paper also highlighted moisture content, plant (Shannon Wiener, Pieiou, Simpson), organic matter main drivers affecting composition potential. Notably, be predictable through taxonomic profiles. Conclusion research provides insight for exploring mechanisms response climate change (longer drought) grassland.

Язык: Английский

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Drought attenuates plant responses to multiple rhizospheric pathogens: A study on a dry root rot-associated disease complex in chickpea fields

Field Crops Research, Год журнала: 2023, Номер 298, С. 108965 - 108965

Опубликована: Май 5, 2023

Язык: Английский

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Deciphering microbiomes dozens of meters under our feet and their edaphoclimatic and spatial drivers

Global Change Biology, Год журнала: 2023, Номер 30(1)

Опубликована: Ноя. 13, 2023

Abstract Microbes inhabiting deep soil layers are known to be different from their counterpart in topsoil yet remain under investigation terms of structure, function, and how diversity is shaped. The microbiome soils (>1 m) expected relatively stable highly independent climatic conditions. Much less known, however, on these microbial communities vary along climate gradients. Here, we used amplicon sequencing investigate bacteria, archaea, fungi fifteen 18‐m depth profiles at 20–50‐cm intervals across contrasting aridity conditions semi‐arid forest ecosystems China's Loess Plateau. Our results showed that bacterial fungal α archaeal community similarity declined dramatically remained soil. Nevertheless, still the functional potential N cycling, plant‐derived organic matter degradation, resource exchange, water coordination. had closer taxa–taxa bacteria–fungi associations more influence dispersal limitation than microbiome. Geographic distance was influential bacteria archaea topsoil. We further negatively correlated with deep‐soil richness, similarity, relative abundance plant saprotroph, associations, but increased aerobic ammonia oxidation, manganese arbuscular mycorrhizal soils. Root depth, complexity, volumetric moisture, clay play bridging roles indirect effects microbes work indicates that, even nutrient cycling susceptible changes availability, consequences for understanding sustainability dryland whole‐soil response aridification. Moreover, propose neglecting may underestimate role moisture future scenarios.

Язык: Английский

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