The role of silicon in physiology of the medicinal plant (Lonicera japonica L.) under salt stress

Gengmao, Zhao; Shihui, Li; Sun, Xu; Wang, Yizhou; Zipan, Chang

doi:10.1038/srep12696

Cited by 78 publications

(44 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For example, 85.73 mM NaCl increased the water saturation deficit in weak roots and limited the biomass accumulation of individual R. pseudoacacia [11]. The growth of the medicinal plant, L. japonica, was reduced by 200 mM NaCl because of negative effects on the ionic uptake and their distribution to plant organs [12]. Oxidative factors are prevalent in both lower and higher salinity conditions.…”

Section: Introductionmentioning

confidence: 99%

The Positive Effect of Different 24-epiBL Pretreatments on Salinity Tolerance in Robinia pseudoacacia L. Seedlings

Yue

Zhang

et al. 2018

Forests

View full text Add to dashboard Cite

As a brassinosteroid (BR), 24-epibrassinolide (24-epiBL) has been widely used to enhance the resistance of plants to multiple stresses, including salinity. Black locust (Robinia pseudoacacia L.) is a common species in degraded soils. In the current study, plants were pretreated with three levels of 24-epiBL (0.21, 0.62, or 1.04 µM) by either soaking seeds during the germination phase (Sew), foliar spraying (Spw), or root dipping (Diw) at the age of 6 months. The plants were exposed to salt stress (100 and 200 mM NaCl) via automatic drip-feeding (water content~40%) for 45 days after each treatment. Increased salinity resulted in a decrease in net photosynthesis rate (P n ), stomatal conductance (G s ), intercellular:ambient CO 2 concentration ratio (C i /C a ), water-use efficiency (WUE i ), and maximum quantum yield of photosystem II (PSII) (F v /F m ). Non-photochemical quenching (NPQ) and thermal dissipation (H d ) were elevated under stress, which accompanied the reduction in the membrane steady index (MSI), water content (RWC), and pigment concentration (Chl a, Chl b, and Chl). Indicators of oxidative stress (i.e., malondialdehyde (MDA) and antioxidant enzymes (peroxidase (POD) and superoxide dismutase (SOD)) in leaves and Na + content in chloroplasts increased accompanied by a reduction in chloroplastid K + and Ca 2+ . At 200 mM NaCl, the chloroplast and thylakoid ultrastructures were severely disrupted. Exogenous 24-epiBL improved MSI, RWC, K + , and Ca 2+ content, reduced Na + levels, maintained chloroplast and thylakoid membrane structures, and enhanced the antioxidant ability in leaves. 24-epiBL also substantially alleviated stress-induced limitations of photosynthetic ability, reflected by elevated chlorophyll fluorescence, pigment levels, and P n . The positive effects of alleviating salt stress in R. pseudoacacia seedlings in terms of treatment application was Diw > Sew > Spw, and the most positive impacts were seen with 1.04 µM 24-epiBL. These results provide diverse choice for 24-epiBL usage to defend against NaCl stress of a plant.

show abstract

Section: Introductionmentioning

confidence: 99%

The Positive Effect of Different 24-epiBL Pretreatments on Salinity Tolerance in Robinia pseudoacacia L. Seedlings

Yue

Zhang

et al. 2018

Forests

View full text Add to dashboard Cite

show abstract

“…Also, the results of increasing total chlorophylls in salinity stressed plants due to nano silicon application are in harmony with those reported by Kalteh et al (2014). Other studies (Bayat et al 2013 ;Mateos-Naranjo et al 2013;Gengmao et al 2015 andEsmaeili et al 2015) reported that application of Si in bulk materials (potassium silicate) resulted in increasing total chlorophylls or K% in salinity stressed plants.…”

Section: Chemical Constituentsmentioning

confidence: 99%

“…Also, the slight increases (insignificant) in vegetative growth and flowering parameters of salt stressed plants due to nano silicon treatments are in agreement with those reported by Kalteh et al (2014) who found that nano silicon application increased leaves fresh and dry weights of basil salinity stressed plants. Furthermore, previous studies (Rahimi et al 2011;Bayat et al 2013 ;Mateos-Naranjo et al 2013;Gengmao et al 2015 andEsmaeili et al 2015) reported that application of Si in bulk materials (potassium silicate or sodium silicate) increased growth and flowering parameters of salt stressed ornamental plants.…”

Section: Interaction Between Effects Of Irrigation Water Salinity Andmentioning

confidence: 99%

See 1 more Smart Citation

Response of Jatropha integerrima Plants Irrigated with Different Levels of Saline Water to Nano Silicon and Gypsum

Ashour¹,

Mahmoud²

2017

JAS

View full text Add to dashboard Cite

An open field experiment was carried out during 2015 and 2016 seasons at the experimental nursery of the Ornamental Horticulture Department, Faculty of Agriculture, Cairo University, Egypt. The purpose of present research was to investigate the effect of foliar application of nano silicon with different concentrations and gypsum soil application on growth, flowering and chemical constituents of Jatropha integerrima plants irrigated with different levels of saline water. The concentrations of saline water were (1000, 2000 and 4000 ppm), in addition to tap water (270 ppm) as a control, simultaneously plants were received monthly foliar application of nano silicon 1 and 2 mM or soil application of gypsum at 20 g/plant, either applied individually or in combination.The results showed that, elevating salt concentration in irrigation water decreased vegetative growth characteristics, flowering traits, leaves anatomy and chemical constituents. In contrast, increasing salinity of irrigation water boosted contents of proline, Ca%, Na%, Cl%, total phenolic and flavonoids. On the other hand, foliar application of nano silicon and soil addition of gypsum treatments either individually or in combination had favorable effects on enhancing vegetative parameters and chemical constitutes, meanwhile decreasing accumulation of Na%, ISSN 2166-0379 2017 http://jas.macrothink.org 137 Cl%, total phenolic and flavonoids in leaves. It can be concluded that, foliar spray of nano silicon combined with soil addition of gypsum was the best effective and economic treatment recommended for mitigating the harmful effect of salinity stress on Jatropha plants irrigated with saline water at concentration up to 4000 ppm. Journal of Agricultural Studies

show abstract

“…Similarly, chlorogenic acid is an important intermediate in lignin biosynthesis and was reported to be a chemical sensitizer responsible for human respiratory allergy against certain types of plant materials [24]. Review articles report modest blood pressure lowering effects from chlorogenic acid administration [25]. Interestingly, cinnamic acid is a precursor to the sweetener aspartame via enzyme-catalyzed amination to phenylalanine and its major use in the manufacturing of the methyl, ethyl, and benzyl esters for the perfume industry.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Phenolic Acids and Antioxidant Activities of Young and Mature Leaves of Tectona Grandis L F

Murukan

Murugan

2018

Asian J Pharm Clin Res

View full text Add to dashboard Cite

Objective: The present study aims in comparison of phenolic acids and its antioxidant potentialities of young and mature leaf extract of Tectona grandis L f. Methods:Various phenolic acids present in methanolic leaf extract of young and mature leaves of T. grandis were analyzed by reversed-phase highperformance liquid chromatography analysis. The antioxidant potentiality of the extracts was determined by various analytical methods such as 2,2-diphenyl-1-picrylhydrazyl, ferric reducing/antioxidant power, and metal chelating activity.Results: Methanolic leaf extracts of young and mature leaf of T. grandis showed a pool of phenolic compounds such as gallic, vanillic, p-hydroxybenzoic, ferulic, chlorogenic, sinapic, p-coumarate, and cinnamic acids. Irrespective of the methods used for analyzing antioxidant capacity, young leaf extract showed potent antioxidant potentiality when compared with the mature leaf extract. Conclusion:The methanolic extract of teak leaves is rich source of many phenolic compounds, and these compounds attribute to the antioxidant capacity of the leaves. Meanwhile, by comparing the young and mature leaves, the young leaves showed much more potential than the other. It is, therefore, concluded that the young teak leaves can be used as a good source of natural antioxidant.

show abstract

The role of silicon in physiology of the medicinal plant (Lonicera japonica L.) under salt stress

Cited by 78 publications

References 36 publications

The Positive Effect of Different 24-epiBL Pretreatments on Salinity Tolerance in Robinia pseudoacacia L. Seedlings

The Positive Effect of Different 24-epiBL Pretreatments on Salinity Tolerance in Robinia pseudoacacia L. Seedlings

Response of Jatropha integerrima Plants Irrigated with Different Levels of Saline Water to Nano Silicon and Gypsum

Comparison of Phenolic Acids and Antioxidant Activities of Young and Mature Leaves of Tectona Grandis L F

Contact Info

Product

Resources

About