Arid
DOI10.1007/s11738-018-2771-z
Drought tolerance and germination response to light and temperature for seeds of saline and non-saline habitats of the habitat-indifferent desert halophyte Suaeda vermiculata
Al-Shamsi, Naeema3; El-Keblawy, Ali1,2; Mosa, Kareem A.1,4; Navarro, Teresa5
通讯作者El-Keblawy, Ali
来源期刊ACTA PHYSIOLOGIAE PLANTARUM
ISSN0137-5881
EISSN1861-1664
出版年2018
卷号40期号:11
英文摘要

Few plants are habitat-indifferent halophytes (i.e., grow well in both saline and non-saline soils). These plants offer a good opportunity to study drought and salinity tolerances during germination for seeds developed and matured in soils differ in salinity. Here, we assessed drought tolerance during germination, as simulated with PEG, and response of germination to light and temperature for Suaeda vermiculata, a habitat-indifferent shrub. Seeds matured in saline and non-saline soils were germinated in six PEG concentrations (0 to -1.0MPa) and put in three incubators adjusted at different temperatures in both light and dark regimes. Drought tolerance was greater for seeds of the non-saline than those of saline soils, especially at higher temperatures. Seeds of the saline soils germinated in the lowest osmotic potentials (-0.8 and -1.0MPa) only at lower temperatures, but seeds of the non-saline soils germinated to higher levels at all temperatures. Tolerances to drought and high temperatures were greater in light for seeds of saline soils, but in darkness for seeds of non-saline soils. Germination rate index did not differ significantly between seeds of the two soil types in higher osmotic potentials, but was significantly greater in seeds of non-saline at lower osmotic potentials. Most seeds that failed to germinate in the PEG concentrations recovered their germination when transferred to distilled water. Germination recovery levels and speeds increased with the decrease in osmotic potentials. Seeds of the saline soil postpone their germination until arrival of suitable temperatures and effective rainfalls that ensure seedling survival in salty habitats of the arid unpredictable deserts.


英文关键词Drought tolerance Germination requirement Maternal habitat Polyethylene glycol Seed germination
类型Article
语种英语
国家U Arab Emirates ; Egypt ; Spain
收录类别SCI-E
WOS记录号WOS:000448589800001
WOS关键词ARABIAN DESERTS ; SALT TOLERANCE ; SALSOLA-VERMICULATA ; MATERNAL SALINITY ; ANABASIS-SETIFERA ; SEEDLING GROWTH ; WATER-STRESS ; SOIL-WATER ; CHENOPODIACEAE ; SHRUB
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207190
作者单位1.Univ Sharjah, Dept Appl Biol, Fac Sci, POB 27272, Sharjah, U Arab Emirates;
2.Al Arish Univ, Dept Biol, Fac Sci, Arish, Egypt;
3.United Arab Emirates Univ, Dept Biol, Fac Sci, Al Ain, U Arab Emirates;
4.Al Azhar Univ, Dept Biotechnol, Fac Agr, Cairo, Egypt;
5.Univ Malaga, Dept Biol Vegetal, POB 59, Malaga 29080, Spain
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Al-Shamsi, Naeema,El-Keblawy, Ali,Mosa, Kareem A.,et al. Drought tolerance and germination response to light and temperature for seeds of saline and non-saline habitats of the habitat-indifferent desert halophyte Suaeda vermiculata[J],2018,40(11).
APA Al-Shamsi, Naeema,El-Keblawy, Ali,Mosa, Kareem A.,&Navarro, Teresa.(2018).Drought tolerance and germination response to light and temperature for seeds of saline and non-saline habitats of the habitat-indifferent desert halophyte Suaeda vermiculata.ACTA PHYSIOLOGIAE PLANTARUM,40(11).
MLA Al-Shamsi, Naeema,et al."Drought tolerance and germination response to light and temperature for seeds of saline and non-saline habitats of the habitat-indifferent desert halophyte Suaeda vermiculata".ACTA PHYSIOLOGIAE PLANTARUM 40.11(2018).
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