Effect of salt on physiological responses of barley to iron deficiency

Yousfi, Sabah; M’sehli, Wissal; Mahmoudi, Henda; Abdelly, Chédly; Gharsalli, Mohamed

doi:10.1016/j.plaphy.2007.03.013

Cited by 90 publications

(65 citation statements)

References 27 publications

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“…In this study, we also found that Ca, Cu, Fe, Mg, and K contents decreased in roots, stems and leaves under salt stress. Similar results have also been reported in which salt stress affects the uptake of Mg [27], Fe [30], Ca [72], and K [73], among others, by plants.…”

Section: Discussionsupporting

confidence: 90%

“…Therefore, understanding the mechanisms of ionic detoxification and balance is indispensable for improving the salt tolerance of plants. A great number of studies have focused on researching the change in ion concentrations under salt stress; however, most of those studies only involved one or a few elements, e.g., Na, K, Fe, and S [28][29][30]. There are interactions between different elements, so research on various elements is becoming increasingly necessary.…”

Section: Introductionmentioning

confidence: 99%

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De Novo Transcriptome Characterization, Gene Expression Profiling and Ionic Responses of Nitraria sibirica Pall. under Salt Stress

Tang

Zhu

et al. 2017

Forests

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Nitraria sibirica Pall., a typical halophyte of great ecological value, is widely distributed in desert, saline, and coastal saline-alkali environments. Consequently, researching the salt tolerance mechanism of N. sibirica Pall. has great significance to the cultivation and utilization of salt-tolerant plants. In this research, RNA-seq, digital gene expression (DGE), and high flux element analysis technologies were used to investigate the molecular and physiological mechanisms related to salt tolerance of N. sibirica Pall. Integrative analysis and de novo transcriptome assembly generated 137,421 unigenes. In total, 58,340 and 34,033 unigenes were annotated with gene ontology (GO) terms and mapped in Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, respectively. Three differentially expressed genes (DEGs) libraries were subsequently constructed from the leaves of N. sibirica Pall. seedlings under different treatments: control (CK), light short-term salt stress (CL2), and heavy long-term salt stress (CL6). Eight hundred and twenty-six, and 224 differentially expressed genes were identified in CL2 and CL6 compared to CK, respectively. Finally, ionomic analysis of N. sibirica Pall. seedlings treated with 0, 100, 200 or 300 mM concentrations of NaCl for one day showed that the uptake and distribution of Ca, Cu, Fe, Mg and K in different organs of N. sibirica Pall. were significantly affected by salt stress. Our findings have identified potential genes involved in salt tolerance and in the reference transcriptome and have revealed the salt tolerance mechanism in N. sibirica Pall. These findings will provide further insight into the molecular and physiological mechanisms related to salt stress in N. sibirica Pall. and in other halophytes.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

De Novo Transcriptome Characterization, Gene Expression Profiling and Ionic Responses of Nitraria sibirica Pall. under Salt Stress

Tang

Zhu

et al. 2017

Forests

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“…Chlorosis might be the unfortunate consequence of the limited Fe supply in plants under salinity (Yousfi et al, 2007). Several studies showed adverse effects of salinity on Fe acquisition in plants.…”

Section: Iron and Abiotic Stress Tolerance In Plants Iron And Salinitmentioning

confidence: 99%

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Tripathi

Singh

Gaur

et al. 2018

Front. Environ. Sci.

166

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Iron (Fe) is a micronutrient that plays an important role in agriculture worldwide because plants require a small amount of iron for its growth and development. All major functions in a plant's life from chlorophyll biosynthesis to energy transfer are performed by Fe (Brumbarova et al., 2008;Gill and Tuteja, 2011). Iron also acts as a major constituent of many plant proteins and enzymes. The acquisition of Fe in plants occurs through two strategies, i.e., strategy I and strategy II (Marschner and Römheld, 1994). Under various stress conditions, Nramp and the YSL gene families help in translocation of Fe, which further acts as a mineral regulatory element and defends plants against stresses. Iron plays an irreplaceable role in alleviating stress imposed by salinity, drought, and heavy metal stress. This is because it activates plant enzymatic antioxidants like catalase (CAT), peroxidase, and an isoform of superoxide dismutase (SOD) that act as a scavenger of reactive oxygen species (ROS) (Hellin et al., 1995). In addition to this, their deficiency as well as their excess amount can disturb the homeostasis of a plant's cell and result in declining of photosynthetic rate, respiration, and increased accumulation of Na + and Ca − ions which culminate in an excessive formation of ROS. The short-range order hydrated Fe oxides and organic functional groups show affinities for metal ions. Iron plaque biofilm matrices could sequester a large amount of metals at the soil-root interface. Hence, it has attracted the attention of plant physiologists and agricultural scientists who are discovering more exciting and hidden applications of Fe and its potential in the development of bio-factories. This review looks into the recent progress made in putting forward the role of Fe in plant growth, development, and acclimation under major abiotic stresses, i.e., salinity, drought, and heavy metals.

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“…Iron is very important for chlorophyll synthesis, and plants subjected to iron deficiency exhibited severe chlorosis, accompanied by a significant biomass reduction [1]. Iron chlorosis is very common in alkaline soils such as calcareous ones, since iron availability is limited by high pH.…”

Section: Introductionmentioning

confidence: 99%

Model Examination for the Effect of Treading Stress on Young Green Barley (<i>Hordeum vulgare</i>)

Koga¹,

Meng²,

Nakamura³

et al. 2013

AJPS

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Treading barley ("Mugifumi" in Japanese) is a barley culturing process that is unique and indispensable in Japan. Generally, roller machines or human feet are used to tread young barley several times (Figure 1). As a model examination, a stainless steel instrument was used for treading barley in this study (Figure 2(a)). Treading damages plants and decreases growth, such as the height and weight of aerial parts, which then recover gradually. In our study, the total amino acid contents increased with the treading stress. The treading stress induced a 1.7-fold increase in aspartic acid contents and an approximately 1.6-fold increase in glutamic acid, proline, cystine, and methionine contents. Isolation and purification suggested that the main components of the methanol-eluted fraction from the young green barley were six known phenolic compounds. Saponarin and lutonarin were the main components. The saponarin content was about 160 mg/g (methanol-soluble fraction) at 10 days after germination. We found that the higher antioxidant activity was due to the increased lutonarin/saponarin ratio from 10% to 24%. Therefore, our results suggest that treading stress is useful for young green barley.

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Effect of salt on physiological responses of barley to iron deficiency

Cited by 90 publications

References 27 publications

De Novo Transcriptome Characterization, Gene Expression Profiling and Ionic Responses of Nitraria sibirica Pall. under Salt Stress

De Novo Transcriptome Characterization, Gene Expression Profiling and Ionic Responses of Nitraria sibirica Pall. under Salt Stress

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Model Examination for the Effect of Treading Stress on Young Green Barley (<i>Hordeum vulgare</i>)

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Effect of salt on physiological responses of barley to iron deficiency

Cited by 90 publications

References 27 publications

De Novo Transcriptome Characterization, Gene Expression Profiling and Ionic Responses of Nitraria sibirica Pall. under Salt Stress

De Novo Transcriptome Characterization, Gene Expression Profiling and Ionic Responses of Nitraria sibirica Pall. under Salt Stress

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Model Examination for the Effect of Treading Stress on Young Green Barley (&lt;i&gt;Hordeum vulgare&lt;/i&gt;)

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Model Examination for the Effect of Treading Stress on Young Green Barley (<i>Hordeum vulgare</i>)