Climate Change vis-a-vis Saline Agriculture: Impact and Adaptation Strategies

Dagar, J. C.; Sharma, Parbodh Chander; Chaudhari, S.K.; Jat, H.S.; Ahamad, Sharif

doi:10.1007/978-81-322-2770-0_2

Cited by 29 publications

(14 citation statements)

References 136 publications

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“…At present, it is an indisputable fact that global climate has changed, posing a potential threat to the sustainable development of agriculture and food security [1]. Increasing global temperatures cause sea level to rise, which in turn increases the salinity of groundwater in coastal and arid areas [1]. Salt-alkali land is widely distributed around the world, covering about 100 million hectares [2].…”

Section: Introductionmentioning

confidence: 99%

De novo transcriptome sequencing and analysis of salt-, alkali-, and drought-responsive genes in Sophora alopecuroides

et al. 2020

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Background: Salinity, alkalinity, and drought stress are the main abiotic stress factors affecting plant growth and development. Sophora alopecuroides L., a perennial leguminous herb in the genus Sophora, is a highly salt-tolerant sand-fixing pioneer species distributed mostly in Western Asia and northwestern China. Few studies have assessed responses to abiotic stress in S. alopecuroides. The transcriptome of the genes that confer stress-tolerance in this species has not previously been sequenced. Our objective was to sequence and analyze this transcriptome. Results: Twelve cDNA libraries were constructed in triplicate from mRNA obtained from Sophora alopecuroides for the control and salt, alkali, and drought treatments. Using de novo assembly, 902,812 assembled unigenes were generated, with an average length of 294 bp. Based on similarity searches, 545,615 (60.43%) had at least one significant match in the Nr, Nt, Pfam, KOG/COG, Swiss-Prot, and GO databases. In addition, 1673 differentially expressed genes (DEGs) were obtained from the salt treatment, 8142 from the alkali treatment, and 17,479 from the drought treatment. A total of 11,936 transcription factor genes from 82 transcription factor families were functionally annotated under salt, alkali, and drought stress, these include MYB, bZIP, NAC and WRKY family members. DEGs were involved in the hormone signal transduction pathway, biosynthesis of secondary metabolites and antioxidant enzymes; this suggests that these pathways or processes may be involved in tolerance towards salt, alkali, and drought stress in S. alopecuroides. Conclusion: Our study first reported transcriptome reference sequence data in Sophora alopecuroides, a non-model plant without a reference genome. We determined digital expression profile and discovered a broad survey of unigenes associated with salt, alkali, and drought stress which provide genomic resources available for Sophora alopecuroides.

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Section: Introductionmentioning

confidence: 99%

De novo transcriptome sequencing and analysis of salt-, alkali-, and drought-responsive genes in Sophora alopecuroides

et al. 2020

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“…Results showed that these trees acts as carbon sink by virtue of their high growth rate, attractive wood and bio drainage properties. Eucalyptus tereticornis plantation was able to sequester 9.5 to 22.5 Mg ha −1 carbon in different spacing and 90.6 Mg ha −1 in block plantations along the canal after 6 years of planting in waterlogged saline soils of northwestern India [88][89][90]. Six years old Eucalyptus tereticornis plantation in sodic land showed a cumulative carbon stock (above ground biomass C+ below ground biomass C + soil carbon) of 122.6 Mg ha −1 with CO 2 mitigation capability of 369.2 Mg ha −1 .…”

Section: Carbon Sequestration Potential Of Halophytesmentioning

confidence: 99%

Ecological and Economic Potential of Major Halophytes and Salt Tolerant Vegetation in India

Kumar¹,

Shukla²,

Chinchmalatpure³

et al. 2021

Abiotic Stress in Plants

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Soil salinization is a global and climatic phenomenon that affects various spheres of life. The present rate of salinization is perilously fast because of global climate change and associated events leading to enhanced land degradation, loss of soil fertility and crop productivity. In this chapter, we tried to focus on the arid and semiarid regions of India along with our coastal zone which are economically fragile regions and need much closer attention. In future, India will face extreme pressure on its land resources in agriculture because of likely rapid degradation of these resources. Thus, salt affected soils must be brought under cultivation by adopting site specific strategies to ensure national food and nutritional security. In this regard, a comprehensive review of the major halophytes of these ecological zones, its mechanism of salt tolerance, ecological and economic potential is done. The potential applications of saline land vegetation including halophytes in climate change mitigation, phytoremediation, desalination, food, secondary metabolite and nutraceutical production, medicine, and saline agriculture have been discussed. Further, we tried to focus on popular farmer adopted halophytic species including edible ones, their uses, products of economic significance etc. which is highly imperative for effective utilization of these saline soils leading to improved livelihood and sustenance of resource poor farmers along with improved ecological balance.

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“…Growing economy in many ways has led to climatic change by increasing global temperature, thereby rise in sea level resulting in increased salinity of groundwater and arid land [1]. Also, increase in global temperature has increased frequency of drought [2] posing a big challenge for agriculture [3].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of ESTs Induced under Drought and Salinity Stress in Hyacinth Bean (<i>Lablab purpureus</i>)

Kokila¹,

Devaraj²

2021

AJPS

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Abiotic stressors like drought and salinity are major causes for loss of agricultural productivity. Comparison of expressed sesquence tags (ESTs) under different abiotic stresses provides insight into underlying mechanism of stress response, and candidate genes to improve tolerance to abiotic and biotic stresses via breading and transgenic methods. In order to identify and compare stress-specific ESTs from drought and salinity stressed Hyacinth Bean, ten days old seedlings were subjected to respective stresses and RNA was extracted from control and stressed leaves for EST identification. 31 and 12 ESTs, respectively, were characterized from leaves of drought and salinity How to cite this paper: Kokila, S.K. and Devaraj, V.R. (2021) A Comparative Study of ESTs Induced under Drought and Salinity Stress in Hyacinth Bean (Lablab purpureus).

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Climate Change vis-a-vis Saline Agriculture: Impact and Adaptation Strategies

Cited by 29 publications

References 136 publications

De novo transcriptome sequencing and analysis of salt-, alkali-, and drought-responsive genes in Sophora alopecuroides

De novo transcriptome sequencing and analysis of salt-, alkali-, and drought-responsive genes in Sophora alopecuroides

Ecological and Economic Potential of Major Halophytes and Salt Tolerant Vegetation in India

A Comparative Study of ESTs Induced under Drought and Salinity Stress in Hyacinth Bean (<i>Lablab purpureus</i>)

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Climate Change vis-a-vis Saline Agriculture: Impact and Adaptation Strategies

Cited by 29 publications

References 136 publications

De novo transcriptome sequencing and analysis of salt-, alkali-, and drought-responsive genes in Sophora alopecuroides

De novo transcriptome sequencing and analysis of salt-, alkali-, and drought-responsive genes in Sophora alopecuroides

Ecological and Economic Potential of Major Halophytes and Salt Tolerant Vegetation in India

A Comparative Study of ESTs Induced under Drought and Salinity Stress in Hyacinth Bean (&lt;i&gt;Lablab purpureus&lt;/i&gt;)

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A Comparative Study of ESTs Induced under Drought and Salinity Stress in Hyacinth Bean (<i>Lablab purpureus</i>)