Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agwat.2018.01.006 |
Long term responses and adaptive strategies of Pistacia lentiscus under moderate and severe deficit irrigation and salinity: Osmotic and elastic adjustment, growth, ion uptake and photosynthetic activity | |
Alvarez, S.1,2; Rodriguez, P.1,3; Broetto, F.4; Sanchez-Blanco, M. J.1 | |
通讯作者 | Alvarez, S. |
来源期刊 | AGRICULTURAL WATER MANAGEMENT |
ISSN | 0378-3774 |
EISSN | 1873-2283 |
出版年 | 2018 |
卷号 | 202页码:253-262 |
英文摘要 | Pistacia lentiscus is a wild species that grows widely in the Mediterranean area. However, despite it appearing to be particularly resistant to some stressful conditions, drought and salinity may alter its physiological and morphological behavior. While the responses of P. lentiscus to both stresses have been partially studied, its avoidance and tolerant mechanisms are poorly understood. In particular, changes in leaf tissue cell wall and the photosynthetic activity during a prolonged water deficit and salinity are unknown. Nursery grown plants were subjected to four irrigation treatments lasting eleven months: control (1 dS m(-1), 100% water holding capacity), two deficit treatments (moderate and severe water deficit, corresponding to 60 and 40% of control) and saline treatment (4 dS m(-1), same amount of water supplied as control). Biomass accumulation was affected more by deficit irrigation than by salinity. Salt tolerance in P. lentiscus was associated with the restricted uptake of Cl- and its storage in roots. However, the cumulative effect of irrigating with saline water involved an over-accumulation of Na+ and Cl- in leaves, which probably contributed to the pronounced decrease in photosynthesis, confirming the importance of the length of exposure of the plants to salt stress. Plants under saline or severe deficit irrigation exhibited slight dehydration throughout the experiment, as indicated by the lower leaf water potential and relative water content, due to the low availability of substrate water (osmotic effect). The response of plants to severe water stress, which resulted in stomatal closure and a decrease in net photosynthesis rate, involved a marked decrease in plant height and growth, especially in the first months of the experiment, after which a slight acclimation may have occurred in these plants. Under moderate water stress, most of these responses were mitigated. Salinity induced active osmotic adjustment and decreased leaf tissue elasticity. Due to its tolerance of water stress and salinity, P. lentiscus is a suitable ornamental species for gardening in arid and saline area. |
英文关键词 | Gas exchange Water relations Elastic modulus Osmotic adjustment Mediterranean shrub Pressure-volume curves |
类型 | Article |
语种 | 英语 |
国家 | Spain ; Cuba ; Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000428833300024 |
WOS关键词 | LEAF WATER RELATIONS ; COWPEA VIGNA-UNGUICULATA ; GAS-EXCHANGE ; MYRTUS-COMMUNIS ; SALT-TOLERANCE ; CHLOROPHYLL FLUORESCENCE ; MEDITERRANEAN SHRUBS ; PHILLYREA-LATIFOLIA ; PRESSURE-VOLUME ; NACL SALINITY |
WOS类目 | Agronomy ; Water Resources |
WOS研究方向 | Agriculture ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/207365 |
作者单位 | 1.CSIC, CEBAS, Dept Riego, POB 164, Murcia 30100, Spain; 2.Inst Tecnolo Agrario Castilla & Leon ITACYL, Unidad Cult Lefiosos & Hort, Ctra Burgos Km 119, Valladolid 47071, Spain; 3.INCA, Km 3-5, San Jose De Las Lajas, Mayabeque, Cuba; 4.UNESP, Inst Biociencias, Dept Quim & Bioquim, Botucatu, SP, Brazil |
推荐引用方式 GB/T 7714 | Alvarez, S.,Rodriguez, P.,Broetto, F.,et al. Long term responses and adaptive strategies of Pistacia lentiscus under moderate and severe deficit irrigation and salinity: Osmotic and elastic adjustment, growth, ion uptake and photosynthetic activity[J],2018,202:253-262. |
APA | Alvarez, S.,Rodriguez, P.,Broetto, F.,&Sanchez-Blanco, M. J..(2018).Long term responses and adaptive strategies of Pistacia lentiscus under moderate and severe deficit irrigation and salinity: Osmotic and elastic adjustment, growth, ion uptake and photosynthetic activity.AGRICULTURAL WATER MANAGEMENT,202,253-262. |
MLA | Alvarez, S.,et al."Long term responses and adaptive strategies of Pistacia lentiscus under moderate and severe deficit irrigation and salinity: Osmotic and elastic adjustment, growth, ion uptake and photosynthetic activity".AGRICULTURAL WATER MANAGEMENT 202(2018):253-262. |
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