Salinity Stress Tolerance in Plants: Physiological, Molecular, and Biotechnological Approaches

Kordrostami, Mojtaba; Rabiei, Babak

doi:10.1007/978-3-030-06118-0_4

Cited by 19 publications

(7 citation statements)

References 107 publications

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“…Furthermore, the perturbation in photosynthesis increases the production of excessive reactive oxygen species (ROS) [singlet oxygen ( 1 O2), superoxide anion (O2 -), hydrogen peroxide (H2O2), and hydroxyl radical (OH -)] through Fenton Haber-Weiss reactions [7,8]. Excessive ROS accumulation is responsible for the oxidation of vital biomolecules [9]. Thus, scavenging of these harmful ROS is crucial for the survival of plants, which is mainly accomplished by the antioxidants.…”

Section: Introductionmentioning

confidence: 99%

Insights into nitric oxide-mediated water balance, antioxidant defence and mineral homeostasis in rice (Oryza sativa L.) under chilling stress

et al. 2020

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Being a chilling-sensitive staple crop, rice (Oryza sativa L.) is vulnerable to climate change. The competence of rice to withstand chilling stress should, therefore, be enhanced through technological tools. The present study employed chemical intervention like application of sodium nitroprusside (SNP) as nitric oxide (NO) donor and elucidated the underlying molecular mechanisms of NO-mediated chilling tolerance in rice. At germination stage, germination indicators were interrupted by chilling stress (5.0 ± 1.0°C for 8 h day -1 ), while pretreatment with 100 μM SNP markedly improved the indicators. At seedling stage (14-dayold), chilling stress caused stunted growth with visible toxicity along with alteration of biochemical markers, for example, increase in oxidative stress markers (superoxide, hydrogen peroxide, and malondialdehyde) and osmolytes (total soluble sugar; proline and soluble protein content, SPC), and decrease in chlorophyll (Chl), relative water content (RWC), and antioxidants. However, NO application attenuated toxicity symptoms with improving growth performance which might be attributed to enhanced activities of antioxidants, mineral contents, Chl, RWC and SPC. Furthermore, principal component analysis indicated that water imbalance and increased oxidative damage were the main contributors to chilling injury, whereas NO-mediated mineral homeostasis and antioxidant defense were the critical determinants for chilling tolerance in rice. Collectively, our findings revealed that NO protects against chilling stress through valorizing cellular defense mechanisms, suggesting that exogenous application of NO could be a potential tool to evolve cold tolerance as well as climate resilience in rice.

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Section: Introductionmentioning

confidence: 99%

Insights into nitric oxide-mediated water balance, antioxidant defence and mineral homeostasis in rice (Oryza sativa L.) under chilling stress

et al. 2020

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“…The superoxide radical, hydroxyl radical, singlet oxygen and hydrogen peroxide are the major ROS which causes oxidative stress to plants (Waszczak et al 2018). The ROS can impair the function and structure of DNA, RNA and protein, thereby intensifying oxidative damage (Hossain et al 2012;Kordrostami and Rabiei 2019). Moreover, higher Na ?…”

Section: Introductionmentioning

confidence: 99%

Physiological mechanisms of exogenous calcium on alleviating salinity-induced stress in rice (Oryza sativa L.)

Roy

Tahjib‐Ul‐Arif

Polash

et al. 2019

Physiol Mol Biol Plants

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Being more sensitive to salt stress among the cereals, growth of rice (Oryza sativa L.) has been habitually affected by salinity. Although, several practices have evolved to sustain the growth of rice under salinity, the enormous role of calcium (Ca 2?) as a signalling molecule in salt stress mitigation is still arcane. Considering this fact, an experiment was performed aiming to explicate the mechanism of salt-induced growth inhibition in rice and its alleviation by exogenous Ca 2?. At germination stage, 10 mM and 15 mM CaCl 2 primed rice (cv. Binadhan-10 & Binadhan-7) seeds were grown in petri dishes for 9 days under 100 mM NaCl stress. At seedling stage, 9-day-old rice seedlings grown on sand were exposed to 100 mM NaCl alone and combined with 10 mM and 15 mM CaCl 2 for 15 days. This research revealed that salinity radically slowed down growth of rice seedlings and Ca 2? treatment noticeably improved growth performances. At germination stage, 10 mM CaCl 2 treatment significantly increased the final germination percentage, germination rate index (in Binadhan-7), shoot, root length (89.20, 67.58% in Bindhan-10 & 84.72, 31.15% in Bindhan-7) and biomass production under salinity. Similarly, at seedling stage, 10 mM CaCl 2 supplementation in salt-stressed plants enhanced shoot length (42.17, 28.76%) and shoot dry weight (339.52, 396.20%) significantly in Binadhan-10 & Binadhan-7, respectively, but enhanced root dry weight (36.76%) only in Binadhan-10. In addition, 10 mM CaCl 2 supplementation on salt-stressed seedlings increased the chlorophyll and proline content, and oppressed the accretion of reactive oxygen species thus protecting from oxidative damage more pronouncedly in Binadhan-10 than Binadhan-7 as reflected by the elevated levels of catalase and ascorbate peroxidase activity. The 15 mM CaCl 2 somehow also enhanced some growth parameters but overall was less effective than 10 mM CaCl 2 to alleviate salt stress, and sometimes showed negative effect. Therefore, supplementary application of calcium-rich fertilizers in saline prone soils can be an effective approach to acclimatize salt stress and cultivate rice successfully.

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“…Cekaman osmotik terjadi karena meningkatnya kadar NaCl di luar sel, yang akan menghambat proses serapan air sehingga dapat mengakibatkan dehidrasi sel dan penurunan tingkat turgor sel (Sopandie, 2014), yang selanjutnya akan menghambat pertumbuhan. Dilain pihak tanaman merespons cekaman osmotik dengan cara mengakumulasi senyawa organik sebagai osmoregulator atau osmo-protektan yang berguna untuk memelihara turgor sel (Kordrostami & Rabiei, 2019) agar proses metabolisme tidak terganggu. Dengan meningkatnya kadar NaCl, serapan terhadap ion Na + dan Cljuga meningkat, lalu diakumulasi di dalam sel, yang pada akhirnya dapat menimbulkan keracunan (Parihar et al, 2015).…”

Section: Pendahuluanunclassified

“…Cekaman salinitas menyebabkan multi efek yang bersifat merugikan bagi pertumbuhan tanaman. Cekaman salinitas mengakibatkan cekaman osmotik, toksisitas ion, ketidakseimbangan hara, defisit air, cekaman oksidatif, gangguan proses metabolisme, kerusakan membran, dan reduksi sintesis sel (Rasool et al, 2013;Farooq et al, 2015;Zorb et al, 2019;Parihar et al, 2015;Kordrostami & Rabiei, 2019) (Parihar et al, 2015), dan cekaman oksidatif berkaitan dengan over produksi radikal bebas (ROS) (Soundararajan et al, 2019;Ahmad et al, 2019) yang semua proses tersebut walaupun dengan mekanisme yang berbeda, tetapi dapat mengakibatkan kerusakan dan kematian sel. Gangguan akibat cekaman oksidatif diawali dengan terjadinya kerusakan komponen sel oleh radikal bebas (ROS), kerusakan atau kebocoran membran sel, selanjutnya menimbulkan gangguan dan kerusakan pada proses sintesis sel dan aktivitas enzim, yang secara keseluruhan akan menimbulkan gangguan pada proses pertumbuhan bahkan bisa mengakibatkan kematian.…”

Section: Pembahasanunclassified

Mitigasi Cekaman Salinitas pada Fase Perkecambahan Kedelai melalui Invigorasi dengan Ekstrak Kulit Manggis dan Ekstrak Kunyit

2021

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Fase perkecambahan merupakan fase yang peka terhadap cekaman abiotik, termasuk cekaman salintas. Invigorasi dapat mengurangi efek negatif cekaman salinitas dan mempercepat proses perkecambahan. Penelitian ini bertujuan untuk mempelajari perlakuan invigorasi dalam memitigasi cekaman salinitas pada fase perkecambahan. Penelitian dilaksanakan di rumah plastik Fakultas Pertanian Universitas Siliwangi. Penelitian ini menggunakan rancangan acak kelompok dengan pola faktorial yang diulang 3 kali. Faktor 1 = cekaman salinitas air laut, terdiri dari 3 level (0% = DHL = 0,6 mS cm-1; 10% = 7,69 mS cm-1; dan 20% = 11,4 mS cm-1), Faktor 2 = invigorasi, terdiri dari 4 level (air sebagai kontrol, ekstrak kulit manggis, ekstrak kunyit, dan campuran ekstrak kulit manggis dan ekstrak kunyit). Hasil analisis menunjukkan bahwa tidak terjadi efek interaksi secara nyata antara cekaman salinitas dengan invigorasi terhadap semua parameter pengamatan, tetapi masing masing perlakuan secara mandiri memberikan pengaruh yang signifikan. Cekaman salinitas menimbulkan efek negatif pada fase perkecambahan. Invigorasi dengan menggunakan ekstrak kulit manggis atau ekstrak kunyit dapat mempertahankan vigor kedelai pada kondisi cekaman salinitas, sehingga dapat digunakan untuk memitigasi cekaman salinitas pada fase perkecambahan.

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Salinity Stress Tolerance in Plants: Physiological, Molecular, and Biotechnological Approaches

Cited by 19 publications

References 107 publications

Insights into nitric oxide-mediated water balance, antioxidant defence and mineral homeostasis in rice (Oryza sativa L.) under chilling stress

Insights into nitric oxide-mediated water balance, antioxidant defence and mineral homeostasis in rice (Oryza sativa L.) under chilling stress

Physiological mechanisms of exogenous calcium on alleviating salinity-induced stress in rice (Oryza sativa L.)

Mitigasi Cekaman Salinitas pada Fase Perkecambahan Kedelai melalui Invigorasi dengan Ekstrak Kulit Manggis dan Ekstrak Kunyit

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