Research Progress on Plant Responses to Stress Combinations in the Context of Climate Change

Plants, Journal Year: 2024, Volume and Issue: 13(4), P. 469 - 469

Published: Feb. 6, 2024

In the context of climate change, frequency and intensity extreme weather events are increasing, environmental pollution global warming exacerbated by anthropogenic activities, plants will experience a more complex variable environment stress combinations. Research on plant responses to combinations is crucial for development utilization climate-adaptive plants. Recently, concept has been expanded from simple multifactorial (MFSCs). Researchers have realized complexity necessity combination research extensively employed composite gradient methods, multi-omics techniques, interdisciplinary approaches integrate laboratory field experiments. studied response mechanisms reactive oxygen species (ROS), phytohormones, transcription factors (TFs), other under reached some generalized conclusions. this article, we focus progress methodological dynamics propose key scientific questions that address, in assemblages, conserving biodiversity, ensuring food security. We can enhance search universal pathways, identify targets combinations, explore adaptive genetic responses, leverage high-technology research. This pursuit cultivating with greater tolerance enabling their adaptation mitigation impacts change.

Language: Английский

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Stress combination: from genes to ecosystems

The Plant Journal, Journal Year: 2024, Volume and Issue: 117(6), P. 1639 - 1641

Published: March 1, 2024

In nature, or under field conditions, plants and crops are routinely subjected to a combination of different abiotic and/or biotic stress conditions that may affect them simultaneously sequentially (e.g., drought heat, flooding nutrient deficiency drought, flood followed by salinity stress, many other combinations include pathogens, increasing levels CO2, factors; Figure 1). Past climatic events ongoing research have taught us can dramatic devastating impact on wild cultivated plants, as well ecosystems their associated microbiomes. Notable examples the heat wave episodes occurred during summers 1980 1988 in US resulted yield losses estimated at 39 53 billion dollars agriculture, respectively (https://www.ncei.noaa.gov/access/billions/events). As frequency intensity stresses, combinations, gradually due global warming climate change (https://climate.nasa.gov/extreme-weather/), deeper understanding molecular mechanisms, physiological responses, overall ecological processes involved plant responses acclimation is needed. With goal awareness community this emerging challenge, we organized Special Issue focused "Stress combination: From genes ecosystems." The special issue comprises five papers, two resource nine reviews. first paper, Balfagon et al. (2024) reported transcription factor WRKY48 which functions key suppressor specific high light stress. authors further showed expression attenuated jasmonic acid (JA) identified putative function downstream WRKY48. This paper significant it likely identify has set stresses combined. Another Li who studied synergistic regulation morphological, physiological, transcriptional, metabolic tomato genotypes salinity. These oxidative phosphorylation pathway alternative oxidase 1 potentially playing role combination. third issue, Ludwig phenotypic variation response 149 accessions Brachypodium combined with heat. Using GWAS SNP analyses loci combination, revealing these not simply additive effects they differ qualitatively from alone. fourth Koch interactions between excess nitrogen fertilization potato. transgenic potato reduction caused elevated temperatures be mitigated overexpression SELF-PRUNING 6A (SP6A), homolog FLOWERING LOCUS T, tuberigen finding proposes new avenue mitigating fifth DeLoose, Cho, also however, focus iron phosphate Arabidopsis. analysis exciting determined PDR9 allelic MYB63 modulate nutrient-dependent coumarin homeostasis Arabidopsis regulate phosphate. papers featured Peláez-Vico soybean multifactorial (MFSC) up (water deficit, salinity, low phosphate, acidity, cadmium), an level complexity conducted integrative transcriptomic-phenotypic reproductive vegetative tissues. highly important provides datasets for tissues crop second Pardo-Hernández provide type abscisic (ABA) deficient offering insights into ABA-dependent ABA-independent reviews included address multiple aspects plant, crop, ecosystem review, Clúa, discuss phosphorous plants. deficiencies essential elements, such nitrogen, iron, zinc, non-essential elements aluminum sodium. Rillig describe review classification scheme captures targets factors along hierarchy. how propagate across hierarchy, upwards downwards, presenting opportunities explaining non-additivity factors. conceptual framework described will help inform next generation plant-focused experiments, specifically aimed confluence Sadras some very interesting virus-virus (inter-virus) virus-drought discussing antagonistic, additive, inter-virus relationships double infections, antagonistic interactions. They then relate agriculture fitness field. Zandalinas tackle challenging subject MFSC. explain change, industrial pollution, elevate frequency, complexity, impacts MFSC microbiomes, worldwide. Chen stresses. challenges poses compare traits differentiate xerophytes (naturally drought-tolerant plants) mesophytes (majority crops). Finally, propose ways incorporating breeding practices produce more drought- salt-resistant crops. Renziehausen waterlogging flooding/anoxia signaling pathways affected mechanisms could play hypoxia Cagnola analyzed water restriction deficiency, temperatures, per unit soil area corn. aspect population density, generates crowding show depending factors, magnitude detrimental field-grown lower, similar, higher than sum individual Sato comprehensive overview altering stomatal conductance, photosynthetic activity, cellular metabolomic profiles, mechanisms. stress-response regulatory components Han coordinately respond shade environmental extreme pests. present avoidance syndrome, phytochrome B PHYTOCHROME INTERACTING FACTORs (PIFs) responses. We hope wide array research, resource, articles spark interest young scientists, highlight broad scientific community, attract attention policy decision makers. timing approximately 20 years following (Mittler, 2006; Rizhsky al., 2002, 2004), over 1000 published since, 2023 report IPCC (Lee & Romero, 2023; https://www.ipcc.ch/report/ar6/syr/), highlights importance subject, its relevance current rapid changes our environment. warming, industrial/urban continue grow yearly basis 2021, 2024), so studying combination/MFSC. To truly develop Climate-, pathogen- pollution-resilient crops, must understand acclimate

Language: Английский

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The Changes of Amino-Acid Metabolism between Wheat and Rice during Early Growth under Flooding Stress

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(10), P. 5229 - 5229

Published: May 11, 2024

Floods induce hypoxic stress and reduce wheat growth. On the other hand, rice is a semi-aquatic plant usually grows even when partially submerged. To clarify dynamic differences in cellular mechanism between under flooding stress, morphological biochemical analyses were performed. Although growth of early stage was significantly suppressed due to hardly affected. Amino-acid analysis revealed significant changes amino acids involved gamma-aminobutyric acid (GABA) shunt anaerobic/aerobic metabolism. Flood increased contents GABA glutamate compared with rice, though abundances decarboxylase succinyl semialdehyde dehydrogenase did not change. The abundance alcohol pyruvate carboxylase respectively. aspartic pyruvic root but remained unchanged wheat; however, aspartate aminotransferase root. These results suggest that inhibits through upregulating amino-acid metabolism increasing alcohol-fermentation system rice. When inhibited by aerobic-metabolic activated, content increases.

Language: Английский

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To live or let die? Epigenetic adaptations to climate change—a review

Current Zoology, Journal Year: 2024, Volume and Issue: 10(1)

Published: Jan. 1, 2024

Anthropogenic activities are responsible for a wide array of environmental disturbances that threaten biodiversity. Climate change, encompassing temperature increases, ocean acidification, increased salinity, droughts, and floods caused by frequent extreme weather events, represents one the most significant alterations. These drastic challenges pose ecological constraints, with over million species expected to disappear in coming years. Therefore, organisms must adapt or face potential extinctions. Adaptations can occur not only through genetic changes but also non-genetic mechanisms, which often confer faster acclimatization wider variability ranges than their counterparts. Among these mechanisms epigenetics defined as study molecules perpetuate alternative gene activity states context same DNA sequence. Epigenetics has received attention past decades, epigenetic sensitive cues, epimutations spread populations mutations. Epimutations be neutral, deleterious, adaptative transmitted subsequent generations, making them crucial factors both long- short-term responses fluctuations, such climate change. In this review, we compile existing evidence involvement adaptation change discuss derived perspectives remaining field epigenetics.

Language: Английский

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ERFVII‐controlled hypoxia responses are in part facilitated by MEDIATOR SUBUNIT 25 in Arabidopsis thaliana

The Plant Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 11, 2024

SUMMARY Flooding impairs plant growth through oxygen deprivation, which activates survival and acclimation responses. Transcriptional responses to low are generally associated with the activation of group VII ETHYLENE‐RESPONSE FACTOR (ERFVII) transcription factors. However, exact mechanisms molecular components by ERFVII factors initiate gene expression not fully elucidated. Here, we show that RELATED TO APETALA 2.2 (RAP2.2) RAP2.12 cooperate Mediator complex subunit At MED25 coordinate under hypoxia in Arabidopsis thaliana . Respective med25 knock‐out mutants display reduced low‐oxygen stress tolerance. physically associates a distinct set core genes its loss partially due decreased RNA polymerase II recruitment. Association target requires presence Next protein stabilisation, also composition including is potentially affected as shown protein‐complex pulldown assays. The dynamic response furthermore supported fact two subunits, MED8 MED16, involved establishment tolerance, whilst both act coordination other environmental conditions. We function independent ethylene signalling. Finally, functional conservation at level was found for MED25‐ERFVII module between A. monocot species Oryza sativa , pointing universal role coordinating ERFVII‐dependent transcript plants.

Language: Английский

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Involvement of miR775 in the Post-Transcriptional Regulation of Fructose-1,6-Bisphosphate Aldolase in Maize (Zea mays L.) Leaves Under Hypoxia

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(3), P. 865 - 865

Published: Jan. 21, 2025

Different types of microRNA participate in the post-transcriptional regulation target genes. The content several hypoxia-dependent miRNAs plant cells, including miR775, increases conditions oxygen deficiency. Electrophoretic studies total RNA samples from leaves flooded seedlings maize (Zea mays L.) revealed presence two interfering complexes with miR775 at 12 h hypoxic incubation. A nucleotide sequence analysis a sample containing complex mRNA showed high degree homology ICL/PEPM_KPHMT lyase family domain. It corresponded to fragment fructose-1,6-bisphosphate aldolase mRNA. By real-time PCR, we established dynamics transcripts isoenzyme genes under hypoxia leaves. decrease transcriptional activity 1 gene (Aldo1) correlated leaf cells. fraction extracellular vesicles sedimented 100,000× g, was enriched miR775. accumulation 2 (Aldo2) indicates its participation maintaining glycolysis when Aldo1 expression is inhibited. We conclude that an increase free and suppression represents important mechanism developing adaptive reaction cellular metabolism response hypoxia.

Language: Английский

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Phenotypic plasticity and integration synergistically enhance plant adaptability to flooding and nitrogen stresses

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Language: Английский

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Waterlogging alone and combined with other abiotic stresses provides unique metabolic signatures at the plant-rhizosphere interface: a multi-omics perspective on root metabolome, root exudation and rhizomicrobiome

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: 221, P. 109646 - 109646

Published: Feb. 12, 2025

Despite the growing evidence on unique and unpredictable impact of stress combination over plants, waterlogging-combined stresses effects are still underexplored. Under those conditions, besides impairment plant aerial parts, root system is particularly vulnerable, leading to consequences survival. Here, we report short-term exposure soil-grown Arabidopsis thaliana L. waterlogging alone combined with cold, heat, salinity inspect their antagonistic, additive or synergistic in rhizosphere. To this aim, metabolic changes, exudation profiles, microbial diversity were investigated using a metabolomics metagenomics, interaction was analysed through multi-omics data integration. In roots, strongly affected metabolism compared other single stresses, causing down-accumulation targeted classes compounds including, phenylpropanoids, sterols, terpenoids, alkaloids. Additive reported roots under heat cold respectively. Regarding exudates, flavonoids, alkaloids main affected. Waterlogging caused all except for coumarins, mixed trends observed waterlogging-salinity resulting an ameliorating effect. Even though communities' alpha- beta-diversity remained stable, suggesting resilience exposure, specific taxa modulation recorded each condition. Overall, these results contribute understanding hierarchical exudation, influencing rhizosphere interactions. This approach advances our responses dynamics, paving way future studies adaptive mechanisms.

Language: Английский

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Metabolomics analysis to characterize the effects of flavonoids on tobacco seedlings under cold and hypoxia stress

Journal of Plant Interactions, Journal Year: 2025, Volume and Issue: 20(1)

Published: March 14, 2025

Cold and hypoxia (CH) stress, a common combined stress during floating system, inhibits growth of tobacco seriously affects the quality. Exogenous substances can regulate plant respond to environmental stress. However, there are few studies focusing on responses CH effects exogenous seedlings under not fully understood. In this study, metabolomics analysis was performed two varieties with contrasting responses, i.e. K326 (CH-sensitive) Honghua (CH-tolerant). The results showed that flavonoids were crucial for resist Furthermore, anthocyanidin, flavone quercetin significantly increased root length, relative chlorophyll content, SP SOD, POD, CAT APX activities while reducing MDA content. Overall, our study highlighted potential improve tolerance which could become useful tool system.

Language: Английский

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Integrated transcriptomics and metabolomics elucidate additive inhibitory effects of combined salinity-waterlogging stress on soybean growth and metabolic adaptations

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109847 - 109847

Published: March 1, 2025

Language: Английский

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