abiotic constraints such as salinity, drought and toxic cation of S. portulacastrum in the arid and semiarid

Overview

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Key numbers

The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:

• Sustainable Development, 2013, 33 (2), pp.329-348. ⟨10.1007/s13593-012-0113-x⟩. ⟨hal-01201356⟩
• HAL Id: hal-01201356
• https://hal.science/hal-01201356v1
• S. portulacastrum grows luxuriantly at 100–400 mM NaCl
• 1000 mM NaCl without any toxic symptoms on the tolerance . Environmental protection . Halophyte .
• leaves. The plant also produces 20-hydroxyecdysone, an 20-Hydroxyecdysone . Desalination . Phytoremediation
• 20E 20-Hydroxyecdysone
• FBA Fructose-1,6-bisphosphate aldolase
• Tal. Junnar, Dist. Pune 410 502, India KUE Potassium use efficiency
• Navi Mumbai 400614, India NADP Nicotinamide adenine dinucleotide phosphate
• Biotechnology Division, Bhabha Atomic Research Centre, PC3 Phytochelatin 3
• 330 P. Suprasanna et al.
• 1. Introduction… … … … … … … … … … 2 and glycophytes are alike but subtle variations in the regulation
• 2. Morphology, habitat, and distribution… … … … 3 of these pathways have contributed to their survival in saline
• 3. Stress tolerance … … … … … … … … … 3 soils (Zhu 2001). Some halophytes consistently require a par-
• 3.1 Growth and halosucculence … … … … … . . 3 ticular concentration of salt in the growth medium, (called as
• 3.2 Photosynthesis … … … … … … … … .4 ‘obligate halophytes’ or ‘true mangroves’) whereas, apart from
• 3.3 Ion transport and osmolytes accumulation … … 5 their growth in highly saline environment, some halophytes
• 3.4 Tolerance to oxidative stress … … … … … 9 have capacity to grow on the soil devoid of salt or soil with
• 3.5 Redox homeostasis and energetic status … … . . 9 mild levels of NaCl (called as ‘facultative halophytes’ or
• 3.6 Other mechanisms of stress tolerance … … … . 9 ‘mangrove associates’). This presence or absence of substrate
• 3.7 Tolerance to heavy metals … … … … … . 11 in the form of salt offers benefit for facultative halophytes in
• 4. Molecular studies … … … … … … … … .13 the competition with salt-sensitive plants (glycophytes).
• 5. Biotechnological implications … … … … … . 13 Among the different halophytic species (Mesembryanthemum
• 6. Metabolites … … … … … … … … … . . .14 crystallinum, Suaeda salsa, Thellungiella halophila, Atriplex
• 7. Potential applications of Sesuvium portulacastrum . 15 sps. etc.), Sesuvium portulacastrum L., commonly called
• 7.1 Medicinal uses … … … … … … … . . 15 “Sea purslane”, is an important halophyte of the family
• 7.2 Source of nutritious food and fodder … … … 15 Aizoaceae. This plant has a distinct molecular and phys-
• 7.3 Source of organic fertiliser and preservative … 15 iological flexibility that enables it to adapt and survive
• 8. Pioneer role in environment protection … … . . .16 under various abiotic stress conditions (Venkatesalu et
• 9. Summary and conclusions… … … … … … . 16 al. 1994a, b; Messedi et al. 2004; Ghnaya et al. 2005,
• 2007a,b; Ramani et al. 2004a, b, c, 2006; Slama et al.
• 2006, 2007a, b, 2008; Rabhi et al. 2010a, b; Lokhande
• 1 Introduction et al. 2009a, b, 2010a, b, c, Lokhande et al. 2011a, b, c;
• Moseki and Buru 2010; Zaier et al. 2010a, b). In the past
• 2000; Munns and Tester 2008). These osmotic and ionic vium, mechanisms of halophytic behaviour, different
• molecular features. It has been estimated that more than 800
• million hectares of land considering 20 % of all cultivated and
• nearly half of irrigated land throughout the world is affected 2 Morphology, habitat and distribution
• by salt (FAO 2008) and this accounts for more than 6 % of the
• world’s total land area (Munns and Tester 2008). Experimen- S. portulacastrum (Fig. 1a) is a herbaceous, perennial,
• tivity of the saturated paste extract is 4 dS m−1 or more, which belonging to family Aizoaceae (Lonard and Judd 1997;

Methods (brief)

• Padmashree Dr. D. Y. Patil University,
• (Padmakumar and Ayyakkannu 1997). microflora such as bacteria, fungi and actinomycetes and soil
• content of hydrocarbon compounds such as O-cymene, 2- 2.5 dS m−1, while in the plant sample, the EC was increased
• Premnathan et al. 1995; Padmakumar and Ayyakkannu Kanth et al. (2009a, b) suggested that Sesuvium can be
• incubation. The UV–visible spectrophotometer, HPLC and ical studies (such as establishment of hairy roots and cell
• Padmakumar K, Ayyakkannu K (1997) Seasonal variation of antibac- physiology. Marcel Dekker, New York, pp 563–581
• Plant 67:173–181. doi:10.1111/j.1399-3054.1986.tb02440.x of flight–mass spectrometry. Anal Chim Acta 671(1–2):48–54.

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Update history

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