Novel perspectives for the engineering of abiotic stress tolerance in plants

Cabello, Julieta Virginia; Lodeyro, Anabella F.; Zurbriggen, Matías D.

doi:10.1016/j.copbio.2013.09.011

Cited by 180 publications

(116 citation statements)

References 75 publications

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“…Enrichment analysis of common stress DEGs, complemented by WGCNA, detected processes that are known to be involved in environmental stress acclimation. For example, degradation and transport of amino acids, metabolism of the raffinose family of oligosaccharides, trehalose (Krasensky and Jonak, 2012), isoprenoids and phenylpropanoids (Wahid et al, 2007;Tattini et al, 2015), posttranslational modifications, and signaling (Cabello et al, 2014;Zhu, 2016; Fig. 5A; Figure 6B; Supplemental Table S6).…”

Section: Discussionmentioning

confidence: 99%

Unique Physiological and Transcriptional Shifts under Combinations of Salinity, Drought, and Heat

Shaar-Moshe

Blumwald²,

Peleg³

2017

Plant Physiol.

111

101

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Climate-change-driven stresses such as extreme temperatures, water deficit, and ion imbalance are projected to exacerbate and jeopardize global food security. Under field conditions, these stresses usually occur simultaneously and cause damages that exceed single stresses. Here, we investigated the transcriptional patterns and morpho-physiological acclimations of Brachypodium dystachion to single salinity, drought, and heat stresses, as well as their double and triple stress combinations. Hierarchical clustering analysis of morpho-physiological acclimations showed that several traits exhibited a gradually aggravating effect as plants were exposed to combined stresses. On the other hand, other morphological traits were dominated by salinity, while some physiological traits were shaped by heat stress. Response patterns of differentially expressed genes, under single and combined stresses (i.e. common stress genes), were maintained only among 37% of the genes, indicating a limited expression consistency among partially overlapping stresses. A comparison between common stress genes and genes that were uniquely expressed only under combined stresses (i.e. combination unique genes) revealed a significant shift from increased intensity to antagonistic responses, respectively. The different transcriptional signatures imply an alteration in the mode of action under combined stresses and limited ability to predict plant responses as different stresses are combined. Coexpression analysis coupled with enrichment analysis revealed that each gene subset was enriched with different biological processes. Common stress genes were enriched with known stress response pathways, while combination unique-genes were enriched with unique processes and genes with unknown functions that hold the potential to improve stress tolerance and enhance cereal productivity under suboptimal field conditions.

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Section: Discussionmentioning

confidence: 99%

Unique Physiological and Transcriptional Shifts under Combinations of Salinity, Drought, and Heat

Shaar-Moshe

Blumwald²,

Peleg³

2017

Plant Physiol.

111

101

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“…Diverse sets of genes expressed in response to abiotic stress have been identified, and elucidation of their physiological or cellular roles in terms of either stress tolerance or sensitivity is a critical issue in current plant biology (Huang et al 2012;Jirschitzka et al 2013). It is essential to study the functions of stress-responsive genes to ameliorate stress tolerance in crop plants (Cabello et al 2014;Ismail et al 2014).…”

Section: Introductionmentioning

confidence: 99%

The effect of triazole induced photosynthetic pigments and biochemical constituents of Zea mays L. (Maize) under drought stress

2015

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In this investigation, pot culture experiment was carried out to estimate the ameliorating effect of triazole compounds, namely Triadimefon (TDM), Tebuconazole (TBZ), and Propiconazole (PCZ) on drought stress, photosynthetic pigments, and biochemical constituents of Zea mays L. (Maize). From 30 days after sowing (DAS), the plants were subjected to 4 days interval drought (DID) stress and drought with TDM at 15 mg l -1 , TBZ at 10 mg l -1 , and PCZ at 15 mg l -1 . Irrigation at 1-day interval was kept as control. Irrigation performed on alternative day. The plant samples were collected on 40, 50, and 60 DAS and separated into root, stem, and leaf for estimating the photosynthetic pigments and biochemical constituents. Drought and drought with triazole compounds treatment increased the biochemical glycine betaine content, whereas the protein and the pigments contents chlorophyll-a, chlorophyll-b, total chlorophyll, carotenoid, and anthocyanin decreased when compared to control. The triazole treatment mitigated the adverse effects of drought stress by increasing the biochemical potentials and paved the way to overcome drought stress in corn plant.

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“…Other authors suggest that advances in plant genetics, agronomy, biotechnology, and animal science will provide the improvements needed in crop and livestock technology to achieve further increases in yields [136][137][138][139][140][141][142][143][144]. However, some authors question whether the needed advances can be developed, tested, and implemented broadly within the time available between now and 2050 [145].…”

Section: Closing the Yield Gapsmentioning

confidence: 99%

Achieving Water and Food Security in 2050: Outlook, Policies, and Investments

Wichelns

2015

Agriculture

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Food production in 2050 will be sufficient, globally, but many of the poor will remain food insecure. The primary cause of food insecurity will continue to be poverty, rather than inadequate food production. Thus, policies and investments that increase the incomes of the poor will remain the best ways to extend food security to all. Investments that promote growth in sustainable agriculture and provide non-farm employment opportunities in rural areas of lower income countries will be most helpful. There will be sufficient water, globally, to achieve food production goals and sustain rural and urban livelihoods, if we allocate and manage the resource wisely. Yet, water shortages will constrain agricultural production and limit incomes and livelihood opportunities in many areas. Policies and investments are needed to extend and ensure access to water for household use and agricultural production. Challenges requiring the attention of policy makers and investors include increasing urbanization and increasing demands for land and water resources. Policy makers must ensure that farmers retain access to the water they need for producing food and sustaining livelihoods, and they must create greater opportunities for women in agriculture. They must also motivate investments in new technologies that will enhance crop and livestock production, particularly for smallholders, and encourage the private sector to invest in activities that create employment opportunities in rural areas.

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Novel perspectives for the engineering of abiotic stress tolerance in plants

Cited by 180 publications

References 75 publications

Unique Physiological and Transcriptional Shifts under Combinations of Salinity, Drought, and Heat

Unique Physiological and Transcriptional Shifts under Combinations of Salinity, Drought, and Heat

The effect of triazole induced photosynthetic pigments and biochemical constituents of Zea mays L. (Maize) under drought stress

Achieving Water and Food Security in 2050: Outlook, Policies, and Investments

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