Combined effects of drought and CO<sub>2</sub> enrichment on foliar metabolites of potato (Solanum tuberosum <i>L.) cultivars</i>

Barnaby, Jinyoung Y.; Fleisher, David H.; Singh, Shardendu K.; Sicher, Richard C.; Reddy, Vangimalla R.

doi:10.1080/17429145.2018.1562110

Cited by 10 publications

(4 citation statements)

References 49 publications

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“…However, reports of the role of phenylalanine in the drought response are mixed. Consistent with this study, phenylalanine increased in potatoes [ 52 ]; however, it decreased in chickpeas [ 53 ]. This phenomenon may be related to plant species, duration of stress, or stress level.…”

Section: Discussionsupporting

confidence: 84%

Metabolomics and Transcriptomics Analyses of Two Contrasting Cherry Rootstocks in Response to Drought Stress

Feng

Liang

Pan

et al. 2021

Biology

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Drought is one of the main factors affecting sweet cherry yields, and cherry rootstocks can provide a range of tree vigor levels to better match sweet cherries with the characteristics of the soil. To investigate the molecular events of the cherry to water deficiency, we performed transcriptomic and metabolomic analyses of Prunus mahaleb CDR-1 (drought-tolerant cherry rootstock (DT)) and P. cerasus × P. canescens Gisela 5 (drought-susceptible cherry rootstock (DS)), respectively. The results revealed 253 common drought-responsive genes in leaves and roots in DT and 17 in DS; 59 upregulated metabolites were explored in leaves in DT and 19 were explored in DS. Differentially expressed metabolites related to the cyanoamino acid metabolism pathway and phenylpropanoid biosynthesis pathway may be key factors in the difference in drought resistance in the two rootstocks. Moreover, six central metabolites—3-cyanoalanine, phenylalanine, quinic acid, asparagine, p-benzoquinone, and phytosphingosine—were identified as potential biological markers of drought response in cherries and may be key factors in the difference in drought resistance, along with caffeic acid and chlorogenic acid. We also selected 17 differentially expressed genes as core candidate genes and the mechanism of DT in response to drought is summarized.

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Section: Discussionsupporting

confidence: 84%

Metabolomics and Transcriptomics Analyses of Two Contrasting Cherry Rootstocks in Response to Drought Stress

Feng

Liang

Pan

et al. 2021

Biology

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“…Potato ( Solanum tuberosum L.) is one of the four major food crops in the world and is commonly grown as a staple food crop in arid and semiarid regions with an annual average precipitation of less than 500 mm [ 1 ]. In these areas, the yield and quality of potato tubers are limited by many biotic and abiotic stresses, among which long-term or seasonal drought stress have detrimental effects on canopy growth as well as tuber yield and market value [ 2 , 3 ]. Therefore, one of the major goals of breeding programs conducted in arid/semiarid regions is the development of strategies and techniques that can improve the drought tolerance of potato.…”

Section: Introductionmentioning

confidence: 99%

Comparative Transcriptome Analysis of Deep-Rooting and Shallow-Rooting Potato (Solanum tuberosum L.) Genotypes under Drought Stress

Qin

Sun

Ali³

et al. 2022

Plants

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The selection and breeding of deep rooting and drought-tolerant varieties has become a promising approach for improving the yield and adaptability of potato (Solanum tuberosum L.) in arid and semiarid areas. Therefore, the discovery of root-development-related genes and drought tolerance signaling pathways in potato is important. In this study, we used deep-rooting (C119) and shallow-rooting (C16) potato genotypes, with different levels of drought tolerance, to achieve this objective. Both genotypes were treated with 150 mM mannitol for 0 h (T0), 2 h (T2), 6 h (T6), 12 h (T12), and 24 h (T24), and their root tissues were subjected to comparative transcriptome analysis. A total of 531, 1571, 1247, and 3540 differentially expressed genes (DEGs) in C16 and 1531, 1108, 674, and 4850 DEGs in C119 were identified in T2 vs. T0, T6 vs. T2, T12 vs. T6, and T24 vs. T12 comparisons, respectively. Gene expression analysis indicated that a delay in the onset of drought-induced transcriptional changes in C16 compared with C119. Functional enrichment analysis revealed genotype-specific biological processes involved in drought stress tolerance. The metabolic pathways of plant hormone transduction and MAPK signaling were heavily involved in the resistance of C16 and C119 to drought, while abscisic acid (ABA), ethylene, and salicylic acid signal transduction pathways likely played more important roles in C119 stress responses. Furthermore, genes involved in root cell elongation and division showed differential expression between the two genotypes under drought stress. Overall, this study provides important information for the marker-assisted selection and breeding of drought-tolerant potato genotypes.

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“…And similar contrasting variations were detected for phenolic compounds such as caffeic acid, catechin, and some other catechins, flavonoids, and carbohydrates not fully identified. The slightly lower levels in some N compounds under eCO 2 in both, leaves and roots, indicate that their accumulation could be modulated by the water status of the plant (Barnaby et al, 2019) confirming the decrease in elemental N content under eCO 2 in the tree leaves (McMurtrie et al, 2008), and particularly in the fine roots (Leakey et al, 2009). However, Uchytilová et al (2019) detected a non‐significant N increase in the roots of beech saplings after two years under an eCO 2 environment.…”

Section: Discussionmentioning

confidence: 88%

Aerial and underground organs display specific metabolic strategies to cope with water stress under rising atmospheric CO₂ in Fagus sylvatica L.

Simón¹,

Cadahía²,

Aranda³

2022

Physiologia Plantarum

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Beech is known to be a moderately drought‐sensitive tree species, and future increases in atmospheric concentrations of CO2 ([CO2]) could influence its ecological interactions, also with changes at the metabolic level. The metabolome of leaves and roots of drought‐stressed beech seedlings grown under two different [CO2] (400 (aCO2) and 800 (eCO2) ppm) was analyzed together with gas exchange parameters and water status. Water stress estimated from predawn leaf water potential (Ψpd) was similar under both [CO2], although eCO2 had a positive impact on net photosynthesis and intrinsic water use efficiency. The aerial and underground organs showed different metabolomes. Leaves mainly stored C metabolites, while those of N and P accumulated differentially in roots. Drought triggered the proline and N‐rich amino acids biosynthesis in roots through the activation of arginine and proline pathways. Besides the TCA cycle, polyols and soluble sugar biosynthesis were activated in roots, with no clear pattern seen in the leaves, prioritizing the root functioning as metabolites sink. eCO2 slightly altered this metabolic acclimation to drought, reflecting mitigation of its effect. The leaves showed only minor changes, investing C surplus in secondary metabolites and malic acid. The TCA cycle metabolites and osmotically active substances increased in roots, but many other metabolites decreased as if the water stress was dampened. Above‐ and belowground plant metabolomes were differentially affected by two drivers of climate change, water scarcity and high [CO2], showing different chemical responsiveness that could modulate the tree adaptation to future climatic scenarios.

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Combined effects of drought and CO₂ enrichment on foliar metabolites of potato (Solanum tuberosum L.) cultivars

Abstract: View related articles View Crossmark data Citing articles: 2 View citing articles Combined effects of drought and CO 2 enrichment on foliar metabolites of potato (Solanum tuberosum L.

Cited by 10 publications

References 49 publications

Metabolomics and Transcriptomics Analyses of Two Contrasting Cherry Rootstocks in Response to Drought Stress

Metabolomics and Transcriptomics Analyses of Two Contrasting Cherry Rootstocks in Response to Drought Stress

Comparative Transcriptome Analysis of Deep-Rooting and Shallow-Rooting Potato (Solanum tuberosum L.) Genotypes under Drought Stress

Aerial and underground organs display specific metabolic strategies to cope with water stress under rising atmospheric CO₂ in Fagus sylvatica L.

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Combined effects of drought and CO2 enrichment on foliar metabolites of potato (Solanum tuberosum L.) cultivars

Abstract: View related articles View Crossmark data Citing articles: 2 View citing articles Combined effects of drought and CO 2 enrichment on foliar metabolites of potato (Solanum tuberosum L.

Cited by 10 publications

References 49 publications

Metabolomics and Transcriptomics Analyses of Two Contrasting Cherry Rootstocks in Response to Drought Stress

Metabolomics and Transcriptomics Analyses of Two Contrasting Cherry Rootstocks in Response to Drought Stress

Comparative Transcriptome Analysis of Deep-Rooting and Shallow-Rooting Potato (Solanum tuberosum L.) Genotypes under Drought Stress

Aerial and underground organs display specific metabolic strategies to cope with water stress under rising atmospheric CO2 in Fagus sylvatica L.

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Product

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Combined effects of drought and CO₂ enrichment on foliar metabolites of potato (Solanum tuberosum L.) cultivars

Aerial and underground organs display specific metabolic strategies to cope with water stress under rising atmospheric CO₂ in Fagus sylvatica L.