Soil salt and NaCl have different effects on seed germination of the halophyte <i>Suaeda salsa</i>

Gao, Ruiru; Wei, Xiaoyi; He, Zhan; Zhao, Ruyan; Wang, Kai; Yang, Xuejun; Walck, Jeffrey L.

doi:10.1002/jpln.201700544

Cited by 11 publications

(6 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But there is no significant relationship between soil nutrients and density of seed bank. This are halfway similar to the results reported in the previous literature ( Li and Xu, 2009 ; Erfanzadeh et al., 2010 ; Bai et al., 2014 ; Gao et al., 2018 ). The primary reason is that the salinity can exert a main inhibiting effect on the growth and manifestation of the plant community in the estuary wetlands, thus further affecting the formation of the seed bank.…”

Section: Discussionsupporting

confidence: 92%

Diversity of soil seed bank and influencing factors in the nascent wetland of the Yellow River Delta

Zhu,

Fang,

Jia

et al. 2023

Front. Plant Sci.

View full text Add to dashboard Cite

Soil seed bank is the growth and reproduction source of vegetation community, playing an important role in vegetation establishment, succession and renewal, biodiversity maintenance. This study has selected the nascent wetland in the Yellow River Delta (YRD) formed in 1996 as study area and investigated the diversity and key influencing factors of soil seed bank diversity. The study results show that: (1) The soil seed bank in the study area has a simple structure, containing relatively few species. A total of five plant species, which belong to four families and five genera, were found in this bank, with Phragmites australis and Suaeda salsa being the dominant plants. (2) All species are herbs without woody species. One herb is annual herb and the others are perennial herbs. (3) From the sea to the river, the changes rules of the overall density and diversity of the seed bank are not obvious. (4) The dispersal distance from salt and freshwater has a significant influence on the density of the soil seed bank but has no significant influence on the diversity. Meanwhile, the soil salt content has a significant negative influence on the diversity of seed banks. (5) Aboveground vegetation did not closely relationship with diversity of soil seed bank. All above results can provide basic data and scientific evidence for the conservation of vegetation communities in the nascent wetlands and vegetation restoration in the degraded wetlands in the YRD.

show abstract

Section: Discussionsupporting

confidence: 92%

Diversity of soil seed bank and influencing factors in the nascent wetland of the Yellow River Delta

Zhu,

Fang,

Jia

et al. 2023

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Meanwhile, there is no comprehensive analysis on germination responses of dimorphic seeds of S. salsa to light condition and different temperature regimes. Furthermore, S. salsa seeds used in germination studies are mainly from the humid regions and not mentioned the seed type ( Song et al, 2008 ; Gao et al, 2018 ). Thus, germination characteristics of dimorphic seeds of S. salsa to different environmental factors and seedling growth are not well recorded, especially for this species grown in arid saline soils.…”

Section: Introductionmentioning

confidence: 99%

Differential Responses of Dimorphic Seeds and Seedlings to Abiotic Stresses in the Halophyte Suaeda salsa

Zhang

et al. 2021

Front. Plant Sci.

View full text Add to dashboard Cite

The period between seed germination and seedling establishment is one of the most vulnerable stages in the life cycle of annuals in the saline environments. Although germination characteristics of Suaeda salsa seeds have been reported, the comparative germination patterns of dimorphic seeds and seedling growth to different abiotic stresses remain poorly understood. In this study, germination responses of dimorphic seeds to light and temperature were compared. Meanwhile, responses of dimorphic seeds and thereafter seedlings of S. salsa to different concentrations of NaCl and Na2SO4 were also tested. The results showed that the light did not significantly affect germination percentage of brown seeds, but significantly promoted germination of black seeds. Brown seeds could reach high germination percentage over a wide temperature range, however, germination of black seeds gradually increased with the increase of temperature. Brown seeds had higher germination percentage and velocity than black seeds under the same salt conditions. However, black seeds had higher recovery germination than brown seeds when transferred to deionized water. Young seedlings had lower salt tolerance than germinating seeds. At the same concentrations, Na2SO4 had stronger inhibitory effect on seed germination and seedling growth than NaCl. This study comprehensively compared germination traits of dimorphic seeds and seedling growth of S. salsa, and then developed a conceptual model to explain their adaptation to harsh saline environment.

show abstract

“…This suggests that cotton exhibits greater resistance to complex salt stress. Some studies have also indicated that the impact of salt in soil leachate on cotton seed germination is relatively minor [ 18 ]. Several factors may contribute to this variation.…”

Section: Discussionmentioning

confidence: 99%

“…It is essential to highlight that natural environments feature more diverse soil salt compositions, with various ions such as Na + , Ca 2+ , and Mg 2+ inter-acting among themselves. These interactions may potentially mitigate their impact on plants, and oxidative enzyme activity could exhibit distinct effects [ 18 ]. The selection of soil-extracted salts from natural saline soils for plant salt tolerance experiments is a deliberate choice aimed at achieving a more faithful replication of the salt stress effects under natural conditions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Plant Regulators on the Seed Germination and Antioxidant Enzyme Activity of Cotton under Compound Salt Stress

Dong,

Huang,

et al. 2023

Plants

View full text Add to dashboard Cite

Salinity stress significantly hampers cotton seed germination and seedling growth. Employing plant growth regulators stands out as an effective strategy to mitigate salt stress. In this study, we assessed the impact of varying concentrations of natural composite salt conditions (0%, 0.6%, and 1.2%) on cotton seed germination, seedling growth, and physiology. Additionally, we explored the effects of compound sodium nitrophenolate (CSN: 2 mg·L−1 and 10 mg·L−1), 24-epibrassinolide (EBR: 0.02 mg·L−1 and 0.1 mg·L−1), and gibberellic acid (GA: 60 mg·L−1 and 300 mg·L−1), against a control (CK: distilled water) group. The results indicate that with an increase in the composite salt concentration, the germination potential (GP) and germination rate (GR) of cotton seeds gradually decrease. Simultaneously, the fresh weight and root vitality of seedlings also correspondingly decrease, while the degree of membrane lipid peroxidation increases. Under high-salt (1.2%) conditions, soaking treatments with CSN and EBR significantly enhance both GP (45–59% and 55–64%) and GR (30–33% and 39–36%) compared to the CK. However, the GA treatment does not increase the GP and GR of cotton. Moreover, under high-salt (1.2%) conditions, CSN and EBR treatments result in the increased activities of superoxide dismutase (56–66% and 71–80%), peroxidase (20–24% and 37–51%), and catalase (26–32% and 35–46%). Consequently, cotton exhibits a relatively good tolerance to natural composite salts. Soaking treatments with CSN and EBR effectively improve cotton germination by enhancing antioxidant enzyme activities, thereby strengthening cotton’s tolerance to salt stress. These findings offer new insights for enhancing the salt tolerance of cotton.

show abstract

Soil salt and NaCl have different effects on seed germination of the halophyte Suaeda salsa

Cited by 11 publications

References 45 publications

Diversity of soil seed bank and influencing factors in the nascent wetland of the Yellow River Delta

Diversity of soil seed bank and influencing factors in the nascent wetland of the Yellow River Delta

Differential Responses of Dimorphic Seeds and Seedlings to Abiotic Stresses in the Halophyte Suaeda salsa

Effects of Plant Regulators on the Seed Germination and Antioxidant Enzyme Activity of Cotton under Compound Salt Stress

Contact Info

Product

Resources

About