Salinity Tolerance in Brassica Oilseeds

Ashraf, Muhammad; McNeilly, T.

doi:10.1080/07352680490433286

Cited by 281 publications

(181 citation statements)

References 102 publications

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“…] and B. carinata A.Br.) (Ashraf and McNeilly, 2004). The species B. napus and B. rapa account for most of the oilseed production in Europe and North America, whereas B. carinata is mainly grown in North Africa.…”

Section: Description Of Brassicamentioning

confidence: 99%

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Towards salinity tolerance in Brassica: an overview

Purty

Kumar

Singla‐Pareek

et al. 2008

Physiol Mol Biol Plants

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Among the various abiotic stresses limiting the crop productivity, salinity stress is a major problem, which needs to be addressed and answered urgently. Since members of Brassicaceae are important contributor to total oilseed production, there is an immediate need being felt to raise Brassica plants which would be more suitable for saline and dry lands in years to come. One of the suggested way to develop salinity tolerant Brassica plants is to make use of the broad gene pool available within the family. Efforts of breeders have been successful in such endeavors to a large extent and several salinity tolerant Brassica genotypes have been developed within India and elsewhere. On the other hand, transgenic technology will undoubtedly continue to aid the search for the cellular mechanisms that confer tolerance, but the complexity of the trait is likely to mean that the road to engineer such tolerance into sensitive species will not be easy. However, with increasing number of reports available for suitable genetic transformation for various Brassica genotypes, there is a hope that salinity tolerance can be improved in this important crop plant. In this direction, the complete genome sequence of related wild plants such as Arabidopsis or crop plants such as rice can also serve as a platform for identification of "candidate genes". Recently, complete genome sequencing of the Brassica genomes has also been initiated with the view that availability of such useful information can pave way towards raising Brassica with improved tolerance towards these stresses. In the present paper, we discuss the success obtained so far; in raising brassica genotypes with improved salinity tolerance employing both plant breeding and/or genetic engineering tools.

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Section: Description Of Brassicamentioning

confidence: 99%

“…have been reported to be relatively more sensitive towards salinity (Ashraf and McNeilly 2004). There is significant inter and intraspecific variation for salt tolerance within Brassica, which needs to be exploited through selection and breeding for enhancing salt tolerance.…”

mentioning

confidence: 99%

Towards salinity tolerance in Brassica: an overview

Purty

Kumar

Singla‐Pareek

et al. 2008

Physiol Mol Biol Plants

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“…Salinity is a major environmental cue, which considerably suppresses crop production worldwide through its injurious effects on plant growth and development (Ashraf and McNeilly 2004;Ahanger and Agarwal 2017). Globally, high salinity affects over 20% of arable land; it exacerbates industrialization and urbanization in most parts of the world.…”

Section: Introductionmentioning

confidence: 99%

Zinc application mitigates the adverse effects of NaCl stress on mustard [Brassica juncea (L.) Czern & Coss] through modulating compatible organic solutes, antioxidant enzymes, and flavonoid content

Ahmad

Ahanger

Alyemeni

et al. 2017

Journal of Plant Interactions

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“…According to Ashraf and McNeilly (2004), most of the Brassica species have been categorized as moderately salt tolerant, with a significant interspecific and intraspecific variation for salt tolerance. However, contradictory findings exist regarding the reaction of these species to salt stress at different plant developmental stages, while most others indicate that these species maintain their degree of salt tolerance consistently throughout the plant ontogeny.…”

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confidence: 99%

Effects of salt stress on water status, photosynthesis and chlorophyll fluorescence of rocket

Hniličková¹,

Hnilička²,

Martinková³

et al. 2017

Plant Soil Environ.

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Salinity is one of the significant factors affecting the productivity of plants. Considerable attention is paid to the study of salt stress effects on the physiological symptoms in various types of plants (Munns and Gilliham 2015, Negrão et al. 2017). High salt concentrations decrease the osmotic potential of soil, which decreases the availability of water and disrupts the transport of water and nutrients to plant roots (Munns 2002, Tester andDavenport 2003). Salinity causes both water stress and osmotic stress in plants and the accumulated salt ions have a toxic effect on plants. Water deficit causes a leaf turgor decrease, further causing stomata closure and decreases of stomatal conductance (g s ); one of the factors limiting photosynthesis rates (Chaves et al. 2009). There is also an ion imbalance due to the excessive collection of Na + and Cl -along with decreased absorption of other ions such as K + , Ca 2+ and Mn 2+ (Flowers and Colmer 2008).Photosynthesis is the most significant physiological process and, in all its phases, is affected by stress factors. Ashraf and Harris (2013) state that the mechanism of photosynthesis involves various components, including photosynthetic pigments and photosystems, the electron transport system, and CO 2 reduction pathways. Any damage at any level caused by a stress factor may reduce the overall photosynthetic capacity of a green plant.Rocket, commonly also known as arugula, roquette and rucola (Eruca sativa (L.) Mill.), is an annual species belonging to the mustard family (Brassicaceae), traditionally grown in the Mediterranean region. Thanks to its excellent nutritional properties, it is increasingly becoming important for its content Salinity is a significant environmental factor affecting physiological processes in plants. This study monitors the effect of salt stress induced by the NaCl solution (0 -deionized water; 50, 100, 200, 300 mmol/L) in rocket (Eruca sativa (L.) Mill.) cv. Astro over the course of 50 days. Salt stress significantly affected the monitored parameters. The osmotic potential decreased with increasing NaCl concentrations, while relative water content decrease did not take place until 200 mmol/L NaCl. Compared to the control group, transpiration (E) decreased at the concentration of 50 mmol/L NaCl and stomatal conductance (g s ) and net photosynthetic rate (P n ) decreased at 100 mmol/L NaCl. Further increase of salt concentrations did not affect P n and no significant differences g s , E and substomatal concentration CO 2 were measured between the concentrations of 200 and 300 mmol/L NaCl. A decrease of F v /F m took place from the concentration of 100 mmol/L NaCl, while differences between 200 and 300 mmol/L NaCl were also not significant. The obtained results therefore prove the tolerance of the E. sativa cv. Astro to salt stress. Effects of salt stress on water status, photosynthesis and chlorophyll fluorescence of rocket

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Salinity Tolerance in Brassica Oilseeds

Cited by 281 publications

References 102 publications

Towards salinity tolerance in Brassica: an overview

Towards salinity tolerance in Brassica: an overview

Zinc application mitigates the adverse effects of NaCl stress on mustard [Brassica juncea (L.) Czern & Coss] through modulating compatible organic solutes, antioxidant enzymes, and flavonoid content

Effects of salt stress on water status, photosynthesis and chlorophyll fluorescence of rocket

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