Ornamental characters, ion accumulation and water status in Arbutus unedo seedlings irrigated with saline water and subsequent relief and transplanting

Navarro, Alejandra; Bañón, S.; Conejero, Wenceslao; Sánchez-Blanco, María Jesús

doi:10.1016/j.envexpbot.2007.10.010

Cited by 48 publications

(46 citation statements)

References 25 publications

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“…Such osmotic adjustment made it possible for C. citrinus plants to maintain turgor potential throughout saline treatment, despite only moderate osmotic adjustment (0.2 MPa). This behaviour and the osmotic adjustment values observed are within the range of those reported in other studies on Mediterranean ornamental plants submitted to saline stress [69,120,147].…”

Section: Plant Osmotic Regulationsupporting

confidence: 90%

“…Early responses to water and salt stress are very similar, because salts hinder the absorption of water through the root system due to the osmotic effect [120]. However, different plant responses have been observed in the long term [42].…”

Section: Water Relations Gas Exchange and Osmotic Regulation And Relmentioning

confidence: 99%

“…These mechanisms are based on stomatal closure and a reduced leaf area, in order to minimise water loss via transpiration [134]. Other resistance mechanisms include the development of osmotic adjustments, mainly involving the intake of inorganic solutes from the soil under salt stress situations to facilitate the maintenance of leaf turgor [69,120,147].…”

Section: Effects Of Salinity On Leaf Water Relations and Gas Exchangementioning

confidence: 99%

“…Common responses in species exposed to saline or drought stress are an increase in osmotic adjustment, changes in the cell wall elasticity, decrease in saturation weight/ dry weight ratio and increase in the percentage of water apoplastic, which minimizes the saline effects by maintaining the foliar turgidity. According to Navarro et al [120], Zheng et al [163] and Suárez [164] osmotic and/or elasticity adjustment result in the turgor loss point being reached at a lower leaf water potential and at a lower relative water content. The degree of osmotic adjustment differs among plant species.…”

Section: Plant Osmotic Regulationmentioning

confidence: 99%

“…Limited osmotic adjustment has been observed in Mediterranean ornamental plants submitted to saline stress [116,120]. C. citrinus, for example, may behave as a typical Cl − includer (accumulator), compartmentalising Cl − within the leaf vacuoles, where it may be used as an osmolyte to lower the osmotic potential necessary for the maintenance of leaf turgor [13].…”

Section: Plant Osmotic Regulationmentioning

confidence: 99%

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Plant Responses to Salt Stress: Adaptive Mechanisms

Acosta‐Motos¹,

Ortuño²,

Bernal‐Vicente³

et al. 2017

Preprint

378

200

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This review deals with the adaptive mechanisms that plants can implement to cope with the challenge of salt stress. Plants tolerant to NaCl implement a series of adaptations to acclimate to salinity, including morphological, physiological and biochemical changes. These changes include increases in the root/canopy ratio and in the chlorophyll content in addition to changes in the leaf anatomy that ultimately lead to preventing leaf ion toxicity, thus maintaining the water status in order to limit water loss and protect the photosynthesis process. Furthermore, we deal with the effect of salt stress on photosynthesis and chlorophyll fluorescence and some of the mechanisms thought to protect the photosynthetic machinery, including the xanthophyll cycle, photorespiration pathway, and water-water cycle. Finally, we also provide an updated discussion on salt-induced oxidative stress at the subcellular level and its effect on the antioxidant machinery in both salt-tolerant and salt-sensitive plants. The aim is to extend our understanding of how salinity may affect the physiological characteristics of plants.

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Section: Plant Osmotic Regulationsupporting

confidence: 90%

Section: Water Relations Gas Exchange and Osmotic Regulation And Relmentioning

confidence: 99%