Cold stress increases salt tolerance of the extremophytes Eutrema salsugineum (Thellungiella salsuginea) and Eutrema (Thellungiella) botschantzevii

Shamustakimova, Anastasia; Leonova, T. G.; Taranov, Vasiliy; Boer, Albertus H. de; Бабаков, А. В.

doi:10.1016/j.jplph.2016.10.009

Cited by 10 publications

(11 citation statements)

References 110 publications

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“…We also must recognize that the halophytes do not experience just salinity in their natural habitats but rather a combination of abiotic stresses. A few groups have begun such combined stress experiments (Khanal et al, 2015;Shamustakimova et al, 2017), but much more needs to be done in this area.…”

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

Halophytism: What Have We Learnt From Arabidopsis thaliana Relative Model Systems?

et al. 2018

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Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

Halophytism: What Have We Learnt From Arabidopsis thaliana Relative Model Systems?

et al. 2018

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“…Extremophytes (stress-tolerant plants) are plant species that have evolved mechanisms to cope with various abiotic stresses such as cold, drought, and hypersaline conditions 4 Spearman correlation coefficient (ρ) among species pairs, especially in root samples, suggesting divergence in the responses of Sp orthologs to ABA ( Supplementary Fig. 3b).…”

Section: Introductionmentioning

confidence: 99%

“…Extremophytes (stress-tolerant plants) are plant species that have evolved mechanisms to cope with various abiotic stresses such as cold, drought, and hypersaline conditions 4 5 . Recently, the reduced cost of sequencing has provided new opportunities to study the genes that underlie these physiological adaptations to extreme environments ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Divergence in a stress regulatory network underlies differential growth control

Sun

Duan

et al. 2020

Preprint

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The use of marginal lands in agriculture is increasingly necessary to support the global human population. Elevated salinity frequently occurs in degraded soils and hinders their use due to the negative impact salt stress has on plant growth. While the hormonal networks controlling growth have been extensively characterized in stress-sensitive plants, it is unclear how these pathways are rewired in plants that maintain growth in extreme environments. We have compared the physiological and molecular responses of four closely related members of the Brassicaceae family including two salt-tolerant species (Shrenkiella parvula and Eutrema salsugineum) and two salt-sensitive species (Sisymbrium irio and Arabidopsis thaliana) to the salt stress-induced hormone, abscisic acid (ABA). While ABA inhibits root growth in most species, we uncovered substantial growth-promoting effects in Shrenkiella parvula, due to an enhancement in cell elongation. Comparative transcriptomics informed by phylogenetic relationships uncovered lineage and extremophile-specific differences in ABA response. DNA Affinity Purification followed by sequencing (DAP-Seq) was utilized to establish gene regulatory networks (GRNs) in each species for the entire ABA-RESPONSIVE ELEMENT BINDING FACTORS (AREB/ABF) clade. Comparative GRN analysis identified relative conservation in the core ABA signaling GRN, while the auxin growth-hormone GRN was highly divergent, revealing how patterns of gain and loss of cis-regulatory elements mediate novel physiological outcomes. Our findings demonstrate that the targets of hormone signaling pathways are highly divergent between species and that diametric inversion of growth regulation is possible, even between closely related species of the same plant family.

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“…Ранее в наших исследованиях на основании данных по биомассе и изменению соотношения ионов натрия и калия, а также по цитофотометрическому анализу и распределению клеток корневой меристемы по фазам клеточного цикла мы выделили солеустойчивые и солечувствительные образцы Thellungiella. По нашим данным вид Thellungiella botschantzevii по сравнению с T. salsuginea более солеустойчив, так как при высоких концентрациях солей больше клеток накапливалось в периоде G1 интерфазы и снижалось в G 2 фазе, что свидетельствует о высокой адаптации этих растений к солям [8,15,16]. Эти результаты подтвердили наши исследования по определению солеустойчивости диких видов -эгилопсов [15].…”

Section: Introductionunclassified

“…По нашим данным вид Thellungiella botschantzevii по сравнению с T. salsuginea более солеустойчив, так как при высоких концентрациях солей больше клеток накапливалось в периоде G1 интерфазы и снижалось в G 2 фазе, что свидетельствует о высокой адаптации этих растений к солям [8,15,16]. Эти результаты подтвердили наши исследования по определению солеустойчивости диких видов -эгилопсов [15].…”

Section: Introductionunclassified

Cytokinetic and anatomical analysis of Thellungiella botschantzevii meristem cells in high concentrations of NaCl and Na2SO4

Кононенко

Leonova

Chaban

2020

Vestn. Ross. univ. družby nar., Ser. Agron. životnovod.

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The study of cytokinetic and anatomical properties of the extramophile plant Thellungiella botschantzevii (German) at high concentrations of NaCl and Na2SO4 and without them (control) allowed to identify structural and functional transformations at the cellular level and evaluate the effect of salinity. Cytophotometric method showed the accumulation of cells in the root meristem in G1 and S stages, which indicated the adaptation of Thellungiella botschantzevii to high concentrations of NaCl and Na2SO4. A high level of ploidy (up to 16C) and the maximum number of polyploid cells at the level of 4C and 8C gave the plant stability. Anatomical characteristics of Thellungiella botschantzevii root and leaf were obtained on semi-thin and ultra-thin sections, and accumulation of lipid and protein inclusions in the root cell was determined. The data obtained indicate that Thellungiella botschantzevii is a unique model for various kinds of research, including genetic research, and can help to develop proposals for increasing resistance in crops.

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Cold stress increases salt tolerance of the extremophytes Eutrema salsugineum (Thellungiella salsuginea) and Eutrema (Thellungiella) botschantzevii

Cited by 10 publications

References 110 publications

Halophytism: What Have We Learnt From Arabidopsis thaliana Relative Model Systems?

Halophytism: What Have We Learnt From Arabidopsis thaliana Relative Model Systems?

Divergence in a stress regulatory network underlies differential growth control

Cytokinetic and anatomical analysis of Thellungiella botschantzevii meristem cells in high concentrations of NaCl and Na2SO4

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