The role of salinity in seed maturation of the euhalophyte<i>Suaeda salsa</i>

Zhou, Jie; Fu, Ting Ting; Sui, Na; Guo, Jianrong; Feng, Gu; Fan, Jialin; Song, Jie

doi:10.1080/11263504.2014.976294

Cited by 75 publications

(54 citation statements)

References 27 publications

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“…4,5,[17][18][19][20] These stresses can affect nutrient uptake and utilization; therefore, plants have developed a wide variety of structural, morphological, and regulatory adaptations to address these environmental stresses. 3,[21][22][23] In particular, multi-level regulatory mechanisms involved in salt tolerance have been well characterized in halophytes, such as Suaeda salsa, 5,[24][25][26] Thellungiella salsuginea, 27,28 and Limonium bicolor. [29][30][31][32][33] Adaptations to cold stress, drought, and UV radiation have also been reported to a lesser degree.…”

Section: Introductionmentioning

confidence: 99%

Molecular mechanisms underlying stress response and adaptation

Sun

Zhou

2017

Thoracic Cancer

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Environmental stresses are ubiquitous and unavoidable to all living things. Organisms respond and adapt to stresses through defined regulatory mechanisms that drive changes in gene expression, organismal morphology, or physiology. Immune responses illustrate adaptation to bacterial and viral biotic stresses in animals. Dysregulation of the genotoxic stress response system is frequently associated with various types of human cancer. With respect to plants, especially halophytes, complicated systems have been developed to allow for plant growth in high salt environments. In addition, drought, waterlogging, and low temperatures represent other common plant stresses. In this review, we summarize representative examples of organismal response and adaptation to various stresses. We also discuss the molecular mechanisms underlying the above phenomena with a focus on the improvement of organismal tolerance to unfavorable environments.

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Section: Introductionmentioning

confidence: 99%

Molecular mechanisms underlying stress response and adaptation

Sun

Zhou

2017

Thoracic Cancer

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“…Hameed, Rasheed, Gul, and Khan (2014) have observed that salinity inhibits seed germination by decreasing water uptake and ascorbate dependent antioxidant system. Seed germination and growth inhibition under stress is also related with lipid peroxidation that is measured by MDA content and low MDA content is important for normal plant growth (Zhou et al, 2016). The RPC5L gene plays an important role in auxin signaling (Nemchinov et al, 2016) and it has been reported that some hormones such as cytokinins and indole-3-acetic acid can enhance salt tolerance in seeds of some plants (Park et al, 2011;Wang et al, 2015).…”

Section: Expression Profile Of Antioxidant Genes In Sbrpc5l Overexpmentioning

confidence: 99%

Engineering of a novel gene from a halophyte: Potential for agriculture in degraded coastal saline soil

Kumari

Jha

2019

Land Degrad Dev

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To feed the ever increasing world population, more crops production per hectare has become a necessity. Soil salinity is one of the important factors causing land degradation leading to low soil aeration and water conductance. It adversely impacts plant growth and development. Adaption through modern molecular tools is an important strategy for alternative use for degraded land. To achieve this aim, we have cloned a novel salt responsive gene Salicornia brachiata RNA Poly III Complex 5 Like subunit (SbRPC5L) from an extreme halophyte and transformed it into tobacco for abiotic stress tolerance. The gene is intronless, 1,202 bp long, membrane‐localized, encoding a protein of 196 amino acids and shows upregulation under salt and osmotic stress. Tobacco plants harboring SbRPC5L perform better under stress and have more water content, membrane stability, and stress tolerance indices as compared with control plants. The transgenics exhibited lower electrolyte leakage, malondialdehyde, reactive oxygen species (ROS), H2O2, and Na+, more negative value of osmotic potential, higher K+ content, and K+/Na+ ratio. Some of the important antioxidant genes, namely, NtAPX, NtPOX, and NtSOD, get upregulated in transgenic lines. The results suggest that this novel gene has a potential to be used as a promising alternative to impart abiotic stress tolerance for climate resilient agriculture in degraded costal saline areas.

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“…Song et al (2009) found that S. salsa seed germination remained ~71%-88% in 35 g/kg salinity treatments. Li et al (2005) found that 10% of S. salsa brown seeds (S. salsa has dimorphic seeds-brown and black; see Wang et al, 2015;Song et al, 2016;Zhou et al, 2016) were still able to germinate in 70 g/kg salinities, although a sharp decline in germination rate occurred between 35 and 47 g/kg salinity treatments. In either case, high-salinity stress did not affect the viability of S. salsa seeds, and nongerminated seeds in high-salinity treatments germinated when salinity stress was lowered (Duan et al, 2007).…”

Section: Importance Of Studying Multiple Plant Responsesmentioning

confidence: 99%

Incorporating thresholds into understanding salinity tolerance: A study using salt‐tolerant plants in salt marshes

Silliman

Cui

2017

Ecology and Evolution

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Although salinity in many ecosystems such as salt marshes can be extremely high, an asymmetry in salinity range between experimental studies (relatively narrow) and field conditions (potentially broad) has strongly affected current understanding of plant salinity tolerance. To improve understanding, it is thus important to examine plant tolerances over a broad range of salinities and identify potential tolerance thresholds. We examine tolerances of two widely distributed marsh plants, Suaeda salsa and Salicornia europaea, to salinities ranging from 0 to 100 g/kg, and determine survival, above‐ and belowground biomass after 8 weeks of salinity treatment. Both species, Sa. europaea in particular, have much broader salinity tolerances than other plants previously examined, (2) plant survival, above‐ and belowground biomass have remarkably different responses to salinity, and (3) there is a nonlinear, threshold response of S. salsa to salinity, above which S. salsa survivorship drastically decreases. These results provide multiple important insights. Our study suggests that the potential for using these halophytes to revegetate and restore salt‐affected land may be greater than previously thought, and highlights the importance of studying multiple plant responses. Importantly, our study calls for a better integration of thresholds into understanding plant salinity tolerances and their applications.

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The role of salinity in seed maturation of the euhalophyteSuaeda salsa

Cited by 75 publications

References 27 publications

Molecular mechanisms underlying stress response and adaptation

Molecular mechanisms underlying stress response and adaptation

Engineering of a novel gene from a halophyte: Potential for agriculture in degraded coastal saline soil

Incorporating thresholds into understanding salinity tolerance: A study using salt‐tolerant plants in salt marshes

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