Salinity inhibits seed germination of perennial halophytes  Limonium stocksii  and  Suaeda fruticosa  by reducing water uptake and ascorbate dependent antioxidant system

Hameed, Abdul; Rasheed, Aysha; Gul, Bilquees; Khan, M. Ajmal

doi:10.1016/j.envexpbot.2014.04.005

Cited by 61 publications

(38 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There is some evidence in the literature that salt ions, especially Na + , may induce iron deficiency in plants (Grattan and Grieve, 1999). Moreover the sensitivity of ascorbate and its instability under saline conditions was documented (Hameed et al, 2014). Therefore, in the current study, the severe reduction of APX activity in triticale genotypes upon exposure to 220 mM salt concentration was expected.…”

Section: Discussionmentioning

confidence: 82%

“…Therefore, in the current study, the severe reduction of APX activity in triticale genotypes upon exposure to 220 mM salt concentration was expected. The APX inhibition by high salt stress was also observed in cultivated rice and sorghum (Kim et al, 2004;Hefny and Abdel-Kader, 2009) and some halophytes species (Hameed et al, 2014). Recently, Grębosz et al, (2014) found that the expression of some isoenzymes of APX in triticale roots was down-regulated under mild and moderate osmotic stress.…”

Section: Discussionmentioning

confidence: 94%

See 1 more Smart Citation

Photosynthesis capacity and enzymatic defense system as bioindicators of salt tolerance in triticale genotypes

Rasouli

Kiani‐Pouya

2015

Flora - Morphology, Distribution, Functional Ecology of Plants

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 94%

Photosynthesis capacity and enzymatic defense system as bioindicators of salt tolerance in triticale genotypes

Rasouli

Kiani‐Pouya

2015

Flora - Morphology, Distribution, Functional Ecology of Plants

View full text Add to dashboard Cite

“…Various morphological attributes such as size (diameter), shape, color, and texture (Dino‐Lite digital microscope, ANMO Electronics Corporation) of freshly collected seeds were recorded. Fresh and dry weight, moisture, ash, and organic component of 100 freshly collected seeds were measured gravimetrically by using a digital (0.0001 g) balance (Hameed, Rasheed, Gul, & Khan, ). Total phenol contents in the seeds were determined by using Folin–Ciocalteu method as detailed in Tawaha, Alali, Gharaibeh, Mohammad, and El‐Elimat ().…”

Section: Methodsmentioning

confidence: 99%

Perianth and abiotic factors regulate seed germination of Haloxylon stocksii—A cash crop candidate for degraded saline lands

et al. 2019

Self Cite

View full text Add to dashboard Cite

Haloxylon stocksii, a common succulent halophyte of saline flats in Pakistan and adjacent countries, is utilized as forage, washing soda, and medicines by the local people. In addition, its cultivation can also prevent land degradation by erosion and salinity. Given that information about its seed ecology is limited, this study aimed to unveil the germination requirements of H. stocksii seeds. Seed morpho‐physical features and effects of perianth persistence, salinity (0–500‐mM NaCl), photoperiod (12 hr light/12 hr dark and 24 hr dark), thermoperiod (10/20°C, 15/25°C, 20/30°C, and 25/35°C), and osmotic stress (0 to −4.29 MPa) on germination and recovery were studied. Presence of perianth caused reductions both in imbibition and germination compared to seeds with perianth removed. Seeds germinated optimally under moderate (20/30°C) than lower (10/20°C and 15/25°C) and higher (25/35°C) temperatures. Under 24 hr dark seed germination was ~20% lower than that in 12‐hr photoperiod at 20/30°C and in distilled water. NaCl increment decreased germination, and only ~20% seeds germinated in the highest NaCl concentration. Ungerminated seeds, when shifted from salt solution to distilled water, showed high recovery of germination. Polyethylene glycol treatment also reduced germination, which was comparable with NaCl treatments. However, polyethylene glycol‐treated seeds showed low recovery, unlike NaCl‐treated seeds. Our data unveil that seeds of H. stocksii germinate optimally upon removal of perianth, under moderate temperature, in absence of salinity and/or osmotic stresses. This study thus provides essential baseline information for mass‐scale cultivation and conservation of H. stocksii in degraded arid‐saline areas.

show abstract

“…Although many factors may affect the germination of seeds242526272829303132, it is undoubted that seed viability is a critical precondition determining whether a seed is able to germinate to be a seedling22232533. If seeds produced by plants of a species are in poor quality, it is difficult for the plants to successfully produce seedlings, and consequently, the population growth and persistence of the species cannot be realized easily2434353637383940.…”

Section: Discussionmentioning

confidence: 99%

Seed sojourn and fast viability loss constrain seedling production of a prominent riparian protection plant Salix variegata Franch

Ayi

Zeng

Liu

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Salix variegata Franch, a prominent plant applied in riparian shelter vegetation in Three Gorges reservoir region of China, produces many seeds every year but generates only a few or no seedlings. Whether the low seedling production of S. variegata is caused by seed sterility or by rapid loss of seed viability remains unknown. We investigated the sojourn time of mature seeds in capsules produced in early, mid, and late reproductive season and the germinability of mature seeds fresh or stored after different period of time. The sojourn time of seeds in capsules was 2.89, 3.95, and 4.72 days in early, mid, and late reproductive season, respectively. The maximal germination percentage of non-stored fresh seeds produced in early, mid, and late reproductive season was 93.33%, 78.67%, and 40%, respectively, which indicates mature seeds were not sterile. The longest viability-retaining time of seeds produced in early, mid, and late reproductive season was only 8, 16, 16 days, respectively, indicating that mature seeds of S. variegata lost viability very rapidly. Mature seeds possessed good viability, but their rapid viability loss caused the low seedling production and hampered the population growth of S. variegata in the riparian area of Three Gorges reservoir region.

show abstract

Salinity inhibits seed germination of perennial halophytes Limonium stocksii and Suaeda fruticosa by reducing water uptake and ascorbate dependent antioxidant system

Cited by 61 publications

References 52 publications

Photosynthesis capacity and enzymatic defense system as bioindicators of salt tolerance in triticale genotypes

Photosynthesis capacity and enzymatic defense system as bioindicators of salt tolerance in triticale genotypes

Perianth and abiotic factors regulate seed germination of Haloxylon stocksii—A cash crop candidate for degraded saline lands

Seed sojourn and fast viability loss constrain seedling production of a prominent riparian protection plant Salix variegata Franch

Contact Info

Product

Resources

About