Characterization of Eucalyptus camaldulensis clones with contrasting response to short-term water stress response

Amrutha, Sivanantham; Parveen, Abdul Bari Muneera; Muthupandi, Muthusamy; Vishnu, Kesavadas; Bisht, Surendra Singh; Sivakumar, V.; Dasgupta, Modhumita Ghosh

doi:10.1007/s11738-020-03175-0

Cited by 5 publications

(2 citation statements)

References 78 publications

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“…It seems that phytol, a product of chlorophyll degradation, served as an important indicator of the state of chlorophyll. Other studies in C. aurantium, Eucalyptus camaldulensis, and Thymus transcaucasicus showed diverse changes in metabolites under environmental stresses (drought, salinity, and temperature stresses) conditions, along with the reduction of metabolites more commonly (Eirini et al, 2017;Manukyan, 2019;Amrutha et al, 2021). Thus, these metabolite changes are an adaptive response mechanism in trifoliate orange under drought stress.…”

Section: Discussionmentioning

confidence: 84%

Metabolomics Analysis Reveals Drought Responses of Trifoliate Orange by Arbuscular Mycorrhizal Fungi With a Focus on Terpenoid Profile

et al. 2021

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Soil water deficit seriously affects crop production, and soil arbuscular mycorrhizal fungi (AMF) enhance drought tolerance in crops by unclear mechanisms. Our study aimed to analyze changes in non-targeted metabolomics in roots of trifoliate orange (Poncirus trifoliata) seedlings under well-watered and soil drought after inoculation with Rhizophagus intraradices, with a focus on terpenoid profile. Root mycorrhizal fungal colonization varied from 70% under soil drought to 85% under soil well-watered, and shoot and root biomass was increased by AMF inoculation, independent of soil water regimes. A total of 643 secondary metabolites in roots were examined, and 210 and 105 differential metabolites were regulated by mycorrhizal fungi under normal water and drought stress, along with 88 and 17 metabolites being up-and down-regulated under drought conditions, respectively. KEGG annotation analysis of differential metabolites showed 38 and 36 metabolic pathways by mycorrhizal inoculation under normal water and drought stress conditions, respectively. Among them, 33 metabolic pathways for mycorrhization under drought stress included purine metabolism, pyrimidine metabolism, alanine, aspartate and glutamate metabolism, etc. We also identified 10 terpenoid substances, namely albiflorin, artemisinin (−)-camphor, capsanthin, β-caryophyllene, limonin, phytol, roseoside, sweroside, and α-terpineol. AMF colonization triggered the decline of almost all differential terpenoids, except for β-caryophyllene, which was up-regulated by mycorrhizas under drought, suggesting potential increase in volatile organic compounds to initiate plant defense responses. This study provided an overview of AMF-induced metabolites and metabolic pathways in plants under drought, focusing on the terpenoid profile.

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Section: Discussionmentioning

confidence: 84%

Metabolomics Analysis Reveals Drought Responses of Trifoliate Orange by Arbuscular Mycorrhizal Fungi With a Focus on Terpenoid Profile

et al. 2021

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“…It is well-known that plants can respond rapidly to drought stress. Their physiological and morphological responses to short-term experimentally stimulated drought include cell elongation in leaves (Acevedo et al 1971), retardation in cell wall and protein synthesis (Cleland 1967;Hsiao 1970), reductions in chlorophyll content as well as increased concentrations of reactive oxygen species, malondialdehyde (a marker for lipid peroxidation) (Chen et al 2016), osmoprotectants such as free-proline, glycine betain and polyols (Ghosh et al 2021), and reductions in tree size, speci c leaf area, leaf relative water content and stomatal conductance (Amrutha et al 2021). These changes in phenotypic traits over short timescales are driven by differential gene expression, which can be measured by assessing the expression levels of mRNA found in plant tissues (Shanker et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Mining differential gene expression in Fagus crenata seedlings in response to short-term soil drought stress

Torimaru,

Ao,

Akaji

et al. 2024

Preprint

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Despite concern about the stress drought imposes on tree species under a warming climate, their molecular responses to drought stress have not been well-documented. We analyzed the transcriptional response of seedling leaves after exposure to short-term drought stress in Fagus crenata. After well-watered and water-stressed treatments, we mapped the RNA-seq reads derived from sampled leaves and identified 127 differentially expressed genes (DEGs), of which 89 were up- and 38 down-regulated in water-stressed plants. Several dozen up-regulated DEGs were predicted to encode proteins that would facilitate mitigating processes or avoid the adverse effects caused by drought stress, including stomatal closure, reactive oxygen species (ROS) scavenging, abscisic acid (ABA) accumulation and response, and osmoprotectants. The evidence of down-regulation in several genes in response to drought stress was in accordance with the results of a literature survey. The functional category of sulfate assimilation was enriched in up-regulated DEGs, although there was also evidence of sulfur deficiency in the DEGs. These results suggest the existence of molecular mechanisms in beech that are common in other plant species, representing an acclimation response to drought stress as well as sulfur metabolism under drought stress conditions. This information provides the basis for further species-specific functional genomic research within the context of a warming climate.

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Development of physiological indices for screening dehydration tolerance in Eucalyptus clones under nursery conditions

et al. 2022

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Characterization of Eucalyptus camaldulensis clones with contrasting response to short-term water stress response

Cited by 5 publications

References 78 publications

Metabolomics Analysis Reveals Drought Responses of Trifoliate Orange by Arbuscular Mycorrhizal Fungi With a Focus on Terpenoid Profile

Metabolomics Analysis Reveals Drought Responses of Trifoliate Orange by Arbuscular Mycorrhizal Fungi With a Focus on Terpenoid Profile

Mining differential gene expression in Fagus crenata seedlings in response to short-term soil drought stress

Development of physiological indices for screening dehydration tolerance in Eucalyptus clones under nursery conditions

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