The development of halophyte-based agriculture: past and present

Ventura, Yvonne; Eshel, Amram; Pasternak, D.; Sagi, Moshe

doi:10.1093/aob/mcu173

Cited by 214 publications

(122 citation statements)

References 102 publications

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“…The most recent case of emergent success is Salicornia L. spp., which have shown high levels of omega-3 polyunsaturated fatty acids and β-carotene antioxidants, and are already being produced in commercial-scale agriculture operations in the USA and Europe (Boer 2008, Lu et al 2010, Panta et al 2014, Ventura et al 2015. Moreover, halophytes can also be used as bioenergy sources (Abideen et al 2011, Ventura et al 2015, Sharma et al 2016) and nutraceutical products, such as mineral-rich herbal salts (Kim & Kim 2013).…”

Section: Halophytes -The New Players In Sustainable Marine Aquaculturementioning

confidence: 99%

Unravelling the potential of halophytes for marine integrated multi-trophic aquaculture (IMTA)— a perspective on performance, opportunities and challenges

Custódio¹,

Villasante²,

Cremades³

et al. 2017

Aquacult. Environ. Interact.

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The present study critically analyses peer-reviewed literature addressing the potential of halophytes to remediate nutrient-rich effluents from marine and coastal aquaculture, as well as the potential for their economic valorization, from human consumption to an untapped source of valuable secondary metabolites with pharmaceutical potential. The growing body of evidence discussed in this review supports the perspective that halophytes can become a new source of nutrition and other high-value compounds and be easily incorporated into saltwater-based integrated multi-trophic aquaculture (IMTA) systems. In this context, halophytes act as extractors of dissolved inorganic nutrients, primarily nitrogen and phosphate, usually wasted in marine aquaculture farms. Phytoremediation using halophytes has been proven to be an efficient solution, and several ways exist to couple this practice with land-based marine aquaculture systems, namely through constructed wetlands and aquaponics. Focusing research on ecosystem-based approaches to aquaculture production will provide valuable data for producers and policy makers in order to improve decision making towards a sustainable development of this economic sector. Ecointensification of aquaculture through IMTA will potentially increase the overall productivity and resilience of the sector, and halophytes, in particular, are on the verge of becoming key players for the diversification and promotion of land-based IMTA. This work specifically documents the uncharted potential of Halimione portulacoides, an important halophyte in European salt marsh ecosystems, as a new extractive species for IMTA.

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Section: Halophytes -The New Players In Sustainable Marine Aquaculturementioning

confidence: 99%

Unravelling the potential of halophytes for marine integrated multi-trophic aquaculture (IMTA)— a perspective on performance, opportunities and challenges

Custódio¹,

Villasante²,

Cremades³

et al. 2017

Aquacult. Environ. Interact.

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“…Halophytes have been studied extensively for their ecological, physiological, anatomical, and biochemical responses toward salinity (Flowers and Colmer, 2008; Aslam et al, 2011; Shabala, 2013; Ventura et al, 2015). Furthermore, halophytes were also explored for saline agriculture and examined as bioenergy crop (Rozema and Schat, 2013; Sharma et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Halophytes: Potential Resources for Salt Stress Tolerance Genes and Promoters

2017

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Halophytes have demonstrated their capability to thrive under extremely saline conditions and thus considered as one of the best germplasm for saline agriculture. Salinity is a worldwide problem, and the salt-affected areas are increasing day-by-day because of scanty rainfall, poor irrigation system, salt ingression, water contamination, and other environmental factors. The salinity stress tolerance mechanism is a very complex phenomenon, and some pathways are coordinately linked for imparting salinity tolerance. Though a number of salt responsive genes have been reported from the halophytes, there is always a quest for promising stress-responsive genes that can modulate plant physiology according to the salt stress. Halophytes such as Aeluropus, Mesembryanthemum, Suaeda, Atriplex, Thellungiella, Cakile, and Salicornia serve as a potential candidate for the salt-responsive genes and promoters. Several known genes like antiporters (NHX, SOS, HKT, VTPase), ion channels (Cl−, Ca2+, aquaporins), antioxidant encoding genes (APX, CAT, GST, BADH, SOD) and some novel genes such as USP, SDR1, SRP etc. were isolated from halophytes and explored for developing stress tolerance in the crop plants (glycophytes). It is evidenced that stress triggers salt sensors that lead to the activation of stress tolerance mechanisms which involve multiple signaling proteins, up- or down-regulation of several genes, and finally the distinctive or collective effects of stress-responsive genes. In this review, halophytes are discussed as an excellent platform for salt responsive genes which can be utilized for developing salinity tolerance in crop plants through genetic engineering.

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“…This factor has likely contributed to the difficulty in identifying stress tolerance genes, which can be applied commercially in breeding procedures (Bressan et al 2001). On the other hand, halophytes that are able to grow and reproduce in saline growth media, could represent a treasure trove of genes for improving crop tolerance to salt and for developing halophyte-based agriculture (Bressan et al 2013;Shabala 2013;Cheeseman 2015;Ventura et al 2015). Although the definition of a halophyte depends upon the threshold salt concentration used for that definition, it has been estimated that there are 350 known species that can tolerate at least 200 mM salt (Flowers et al 2010a).…”

Section: Salt-tolerant Extremophytesmentioning

confidence: 99%

Extremophyte adaptations to salt and water deficit stress

Barak

Farrant

2016

Functional Plant Biol.

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Abstract. Plants that can survive and even thrive in extreme environments (extremophytes) are likely treasure boxes of plant adaptations to environmental stresses. These species represent excellent models for understanding mechanisms of stress tolerance that may not be present in stress-sensitive species, as well as for identifying genetic determinants to develop stress-tolerant crops. This special issue of Functional Plant Biology focuses on physiological and molecular processes that enable extremophytes to naturally survive high levels of salt or desiccation.

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The development of halophyte-based agriculture: past and present

Cited by 214 publications

References 102 publications

Unravelling the potential of halophytes for marine integrated multi-trophic aquaculture (IMTA)— a perspective on performance, opportunities and challenges

Unravelling the potential of halophytes for marine integrated multi-trophic aquaculture (IMTA)— a perspective on performance, opportunities and challenges

Halophytes: Potential Resources for Salt Stress Tolerance Genes and Promoters

Extremophyte adaptations to salt and water deficit stress

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