Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/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
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ISSN | 0137-5881 |
EISSN | 1861-1664 |
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 |
推荐引用方式 GB/T 7714 | 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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