scholarly journals Gly Betaine Surpasses Melatonin to Improve Salt Tolerance in Dalbergia odorifera

2021 ◽  
Vol 12 ◽  
Author(s):  
El Hadji Malick Cisse ◽  
Ling-Feng Miao ◽  
Fan Yang ◽  
Jin-Fu Huang ◽  
Da-Dong Li ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Plant Growth ◽  
Crop Production ◽  
Growth Parameters ◽  
Soluble Sugar ◽  
Carotenoid Content ◽  
Guaiacol Peroxidase ◽  
Agricultural Crop ◽  
Salt Stress Condition ◽  
Dalbergia Odorifera

Salinity is one of the most serious factors limiting plant growth which can provoke significant losses in agricultural crop production, particularly in arid and semi-arid areas. This study aimed to investigate whether melatonin (MT; 0.05 and 0.1 mM), which has pleiotropic roles, has a better effect than glycine betaine (GB; 10 and 50 mM) on providing salt tolerance in a woody plant Dalbergia odorifera T. Chen. Also, the alternative oxidase activity (AOX) in plant subjected to MT or GB under salinity (150 and 250 mM) was evaluated given that the effect of exogenous MT or GB on AOX has not been reported yet. The results showed that the exogenous application of GB on the seedlings of D. odorifera increased the plant growth parameters, relative water content, total of chlorophyll content, and carotenoid content compared with well-watered and MT treatments. Under severe salinity, the seedlings subjected to GB showed, a significant enhancement in water use efficiency, transpiration, and net photosynthetic rate regardless to MT-treated seedlings. The levels of proline and soluble sugar in the seedlings treated with MT or GB decreased significantly under mild and severe salinity correlated with those in salt-stressed seedlings. Furthermore, GB-treated plants exhibited a significant inhibition of malondialdehyde content compared with MT-treated plants. The concentration of thiols and phenolic compounds were significantly enhanced in the leaves of seedlings treated with MT compared with those treated with GB. Under salt stress condition, GB scavenged significantly higher levels of hydrogen peroxide than MT; while under severe salinity, plants subjected to MT showed better scavenging ability for hydroxyl radicals compared with GB-treated seedlings. The results demonstrated also an enhancement of the levels of superoxide dismutase (SOD), guaiacol peroxidase, and AOX activities in seedlings treated with GB or MT compared with salt-stressed plants. The catalase activity (CAT) was increased by 0.05 mM MT and 0.1 mM GB under mild salinity. Meanwhile, the AOX activity under severe salinity was enhanced only by GB 50 mM. The findings of this study suggested that GB-treated seedlings possessed a better salt tolerance in comparison with MT-treated seedlings.

Physiological and biochemical insights for salt stress tolerance in the habitat-indifferent halophyte Salsola drummondii during the vegetative stage

Botany ◽  
2020 ◽  
Vol 98 (11) ◽  
pp. 673-689 ◽  
Author(s):  
Attiat Elnaggar ◽  
Kareem A. Mosa ◽  
Ali El-Keblawy ◽  
Amel Tammam ◽  
Mohamed El-Naggar
Keyword(s):  
Salt Tolerance ◽  
Growth Parameters ◽  
Element Composition ◽  
Vegetative Stage ◽  
Carotenoid Content ◽  
Guaiacol Peroxidase ◽  
Salt Stress Tolerance ◽  
Sodium Accumulation ◽  
Proline Concentration ◽  
Physiological And Biochemical

We investigated changes in the growth parameters, sodium accumulation, element composition, and antioxidant enzyme activity of habitat-indifferent Salsola drummondii Ulbr. during the vegetative stage. Our results show that S. drummondii grows very well in salt concentrations up to 500 mmol/L NaCl. There were no significant differences in the water content and biomass of shoots, roots, and leaves between the control and plants treated with 500 mmol/L NaCl (equivalent to the salinity of seawater). However, chlorophyll and carotenoid content was reduced at higher salinities, which was associated with a significant increase in H2O2 and malondialdehyde. Our results revealed that S. drummondii can translocate Na+ from the roots to the shoots, with Na+ content in the shoots being higher than that in the roots. In contrast, the S. drummondii plants treated with NaCl exhibited a significant decrease in the levels of essential ions in different plant organs. Proline concentration significantly increased with increasing salinity, and significant changes were observed in guaiacol peroxidase, catalase, and ascorbate peroxidase levels under different salinity treatments. The activity of antioxidant enzymes and proline accumulation in S. drummondii plants correlated with enhanced salt tolerance. Our findings provide novel insights into the salt tolerance of S. drummondii.

scholarly journals Agro-Nanotechnology as an Emerging Field: A Novel Sustainable Approach for Improving Plant Growth by Reducing Biotic Stress

2021 ◽  
Vol 11 (5) ◽  
pp. 2282
Author(s):  
Masudulla Khan ◽  
Azhar U. Khan ◽  
Mohd Abul Hasan ◽  
Krishna Kumar Yadav ◽  
Marina M. C. Pinto ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Yield ◽  
Biotic Stress ◽  
Crop Production ◽  
Plant Disease ◽  
Yield Loss ◽  
Growth Parameters ◽  
Plant Diseases ◽  
High Yield ◽  
Plant Disease Management

In the present era, the global need for food is increasing rapidly; nanomaterials are a useful tool for improving crop production and yield. The application of nanomaterials can improve plant growth parameters. Biotic stress is induced by many microbes in crops and causes disease and high yield loss. Every year, approximately 20–40% of crop yield is lost due to plant diseases caused by various pests and pathogens. Current plant disease or biotic stress management mainly relies on toxic fungicides and pesticides that are potentially harmful to the environment. Nanotechnology emerged as an alternative for the sustainable and eco-friendly management of biotic stress induced by pests and pathogens on crops. In this review article, we assess the role and impact of different nanoparticles in plant disease management, and this review explores the direction in which nanoparticles can be utilized for improving plant growth and crop yield.

scholarly journals Salicylic acid pre-treatment induced physiological and biochemical changes in Solanum lycopersicum L. under salinity stress

2021 ◽  
Vol 13 (2) ◽  
pp. 10917
Author(s):  
Venu SREELAKSHMY ◽  
Gunasekar ANBARASI ◽  
Benaltraja VISHNUPRIYA
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Plant Growth ◽  
Solanum Lycopersicum ◽  
Crop Production ◽  
Plant Biomass ◽  
Salt Water ◽  
Radical Scavenging ◽  
Agricultural Crop ◽  
Pre Treatment

Agricultural crop production around the world is adversely affected by excess salt accumulation in the soil. Plants initiate broad range of signal transduction pathways to respond any stress. Salicylic acid (SA) is an endogenous plant growth regulator that acts as a signal molecule to modulate plant response by reducing the effects of abiotic stress on plants. The main objective of this study is to examine whether exogenous salicylic acid pre-treatment may reduce the adverse effects of salt stress and enhance salt tolerance in Solanum lycopersicum. For this experiment, two weeks old seedlings were subjected to salt stress by adding salt water (100 mM NaCl) for three days with or without salicylic acid pre-treatment. After salt stress exposure plant leaves were harvested and the various measures were recorded. Results of this study exhibited that salicylic acid pre-treatment mitigates various advers effects of salt stress on plant growth by stimulating plant biomass, water relations, protein content, chlorophyll pigment, and inorganic osmolytes accumulation. Simultaneously, an increase in activity of antioxidant enzymes of SOD, CAT and POX were also triggered.  This current study suggested that pre-treating of Solanum lycopersicum with salicylic acid attenuates the depressive effect of salinity by accelerating the osmolyte accumulation and triggering activity of free radical scavenging enzymes.

scholarly journals PENGARUH PGPR AKAR BAMBU APUS DAN PUPUK LIMBAH CAIR NANAS TERHADAP PERTUMBUHAN BAWANG DAUN UNTUK INFORMASI MASYARAKAT

BIOLOVA ◽  
2020 ◽  
Vol 1 (2) ◽  
pp. 96-107
Author(s):  
Elza - Yulistiana ◽  
Hening Widowati ◽  
Agus Sutanto
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Public Information ◽  
Liquid Waste ◽  
Plant Growth Promoting Rhizobacteria ◽  
Agricultural Crop ◽  
Plant Family ◽  
Average Percentage ◽  
Plant Growth Promoting ◽  
Growth Promoting

Increasing agricultural crop production, especially onion, can be done by improving the optimal growing environment for plants. Plant roots can be optimized for the absorption of nutrients and water in the process of photosynthesis. One way that can be used is by applying Plant Growth Promoting Rhizobacteria (PGPR). In addition to increasing the content of micro and macro elements in the soil can also support the growth of leek plants obtained by applying Pineapple Liquid Waste (LCN) made using bacterial isolation and can meet the needs of nutrients in plants. This study aims to determine the effect Plant Growth Promoting Rhizobacteria (PGPR) from Apus (Gigantochola apus) bamboo root and Pineapple Liquid Waste (LCN) fertilizer on the growth of leeks (Allium fistulosum L.), then the results of this study are treated as community information in the form of Leaflets. The method used in this study was an experiment using a Completely Randomized Design (CRD) system consisting of 4x4 factorials with 3 replications. Based on the results of calculations and data analysis, the results show that there is an effect of PGPR and LCN on the growth of scallions on the height and number of tillers per scallion plant family, but there is no influence on pseudo stem circumference and wet weight per scallion plant family, and the results of this study can be used as a source of public information in the form of leaflets with an average percentage included in good eligibility criteria.

scholarly journals Foliar Application of 24-Epibrassinolide Improved Salt Stress Tolerance of Perennial Ryegrass

HortScience ◽  
2015 ◽  
Vol 50 (10) ◽  
pp. 1518-1523 ◽  
Author(s):  
Shanshan Sun ◽  
Mengying An ◽  
Liebao Han ◽  
Shuxia Yin
Keyword(s):  
Salt Stress ◽  
Salt Tolerance ◽  
Stress Tolerance ◽  
Perennial Ryegrass ◽  
Foliar Application ◽  
Soluble Sugar ◽  
Salt Stress Tolerance ◽  
Salt Stress Condition ◽  
Relative Water ◽  
Antioxidant Defense Systems

Perennial ryegrass (Lolium perenne L.) is a widely used turfgrass. In this study, the effect of exogenously applied 24-epibrassinolide (EBR) on salt stress tolerance of perennial ryegrass was investigated. The results indicated that pretreatment with four concentrations of EBR (0, 0.1, 10, 1000 nM) improved salt tolerance of perennial ryegrass. Exogenous EBR treatment decreased electrolyte leakage (EL), malondialdehyde (MDA), and H2O2 contents and enhanced the leaf relative water content (RWC), proline, soluble sugar, and soluble protein content under salt stress condition. Meanwhile, EBR reduced the accumulation of Na+ and increased K+, Ca2+, and Mg2+ contents in leaves after salt treatment. Moreover, EBR pretreatment also increased superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) activity, as well as ascorbic acid (AsA) and glutathione contents. These results suggested that EBR improved salt tolerance by enhancing osmotic adjustment and antioxidant defense systems in perennial ryegrass.

scholarly journals Effect of Arka microbial consortium on growth and germination percentage of French bean and Amaranthus seeds

2020 ◽  
Vol 7 (8) ◽  
pp. 16-21
Author(s):  
Priyadarshini Pillai ◽  
M. Punitha ◽  
S. Ranjitha ◽  
R. Ragavi ◽  
G. Roopa ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Microbial Consortium ◽  
Growth Parameters ◽  
Block Design ◽  
Organic Fertilizer ◽  
Integrated Approach ◽  
Germination Percentage ◽  
French Bean ◽  
Seed Vigour

Composting is an alternative for recycling biodegradable organic waste, transforming it into organic fertilizer that can be used as agricultural nutrients, avoiding its disposal in landfills. This study evaluated the composting of Jyoti Nivas college hostel kitchen waste using Arka Microbial Consortium, with a view to its applications on Germination percentage, Seed Vigour Index and plant growth parameters of French bean (Arka arjun) and Amaranthus (Arka arunima) seeds. Arka microbial consortium (AMC) is carrier based product which contain nitrogen fixing, potassium and zinc solubilizing plant growth promoting microbes used as decomposers. The experiment was conducted under greenhouse conditions in a randomized block design, with two treatments and three replicates. Assessments of plant growth parameters were performed and results suggest that using Arka Microbial Consortium with bio compost is suitable for better production French bean (Arka arjun) and Amaranthus (Arka arunima) seeds that may increase soil fertility and this integrated approach could be contributed to improve crop production.

scholarly journals Interactive Role of Silicon and Plant–Rhizobacteria Mitigating Abiotic Stresses: A New Approach for Sustainable Agriculture and Climate Change

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1055
Author(s):  
Krishan K. Verma ◽  
Xiu-Peng Song ◽  
Dong-Mei Li ◽  
Munna Singh ◽  
Vishnu D. Rajput ◽  
...  
Keyword(s):  
Plant Growth ◽  
Abiotic Stresses ◽  
Crop Production ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Agricultural Crop ◽  
Plant Growth Promoting ◽  
Microbe Interactions ◽  
Stimulate Plant Growth ◽  
Excess Quantity

Abiotic stresses are the major constraints in agricultural crop production across the globe. The use of some plant–microbe interactions are established as an environment friendly way of enhancing crop productivity, and improving plant development and tolerance to abiotic stresses by direct or indirect mechanisms. Silicon (Si) can also stimulate plant growth and mitigate environmental stresses, and it is not detrimental to plants and is devoid of environmental contamination even if applied in excess quantity. In the present review, we elaborate the interactive application of Si and plant growth promoting rhizobacteria (PGPRs) as an ecologically sound practice to increase the plant growth rate in unfavorable situations, in the presence of abiotic stresses. Experiments investigating the combined use of Si and PGPRs on plants to cope with abiotic stresses can be helpful in the future for agricultural sustainability.

scholarly journals The Short-Term Effects of Mineral- and Plant-Derived Fulvic Acids on Some Selected Soil Properties: Improvement in the Growth, Yield, and Mineral Nutritional Status of Wheat (Triticum aestivum L.) under Soils of Contrasting Textures

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 205
Author(s):  
Mahendar Kumar Sootahar ◽  
Xibai Zeng ◽  
Yanan Wang ◽  
Shiming Su ◽  
Permanand Soothar ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Growth Parameters ◽  
Sandy Loam ◽  
Inorganic Compounds ◽  
Chemical Properties ◽  
Growth Yield ◽  
Fulvic Acids ◽  
Silty Clay ◽  
Available N

Fulvic acids (FAs) improve the structure and fertility of soils with varying textures and also play a crucial role in increasing crop production. The pot experiment was carried out using wheat grown on three soils with a silty clay, sandy loam, and clay loam texture, respectively. The soils were treated with FAs derived from plant and mineral materials. Plant-derived solid (PSFA), mineral-derived liquid (NLFA), and plant-derived liquid (PLFA) were applied at a rate of 2.5, 5, and 5 g kg−1 and control applied at 0 g kg−1. The results showed that in treated soils, the heavy fraction C was higher by 10%–60%, and the light fraction C increased by 30%–60%. Similarly, the available N content significantly increased in treated soils by 30%–70% and the available K content increased by 20%–45%, while P content significantly increased by 80%–90% in Aridisols and Vertisols and decreased by 60%–70% in Mollisols. In contrast, for P, the organic–inorganic compounds were greater in Aridisols and Vertisols and lower in Mollisols. However, organic–inorganic composites decreased in Vertisols relative to the other two soils. Further results showed that PSFA and NLFA accelerated the plant growth parameters in Mollisols and Aridisols, respectively. Our study demonstrates that the application of PSFA and NLFA had a positive effect on the physical and chemical properties and plant growth characteristics of Mollisol and Vertisol soils. Moreover, the application of solid-state FA yields better results in Mollisols. However, liquid FA increases the nutrient availability and the effects on the chemical, biological, and physical properties of Aridisol and Vertisol soils.

scholarly journals Harnessing the genetic potential of the plant microbiome

2020 ◽  
Vol 42 (4) ◽  
pp. 20-25
Author(s):  
Nicole R. Wang ◽  
Cara H. Haney
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Plant Growth Promoting Rhizobacteria ◽  
Growth Conditions ◽  
Healthy Plant ◽  
Agricultural Crop ◽  
Growth And Survival ◽  
Genetic Potential ◽  
The Impact ◽  
Plant Microbiome

Plant-associated microorganisms, such as bacteria and fungi, can grow on and survive in healthy plant tissues, making up the plant microbiome. Members of the plant microbiome can provide benefits to their host, and emerging research suggests that plants can reshape the composition of their microbiomes in response to environmental cues. The plant microbiome collectively acts as a reservoir for genes that may improve plant growth and survival in response to challenges, therefore contributing to the total genetic potential of the plant. Understanding the impact of the plant microbiome has unlocked new strategies for improving crop production, especially as climate change threatens to increase the prevalence of pathogens and stressful growth conditions. Applying microbiome engineering strategies, such as inoculation with plant growth-promoting rhizobacteria (PGPR), and incorporating the microbiome into the breeding process show promise for improving future agricultural crop production.

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