A comparison study on the effect of some growth regulators on the nutrients content of maize plant under salinity conditions

Rashad, Rama T.; Hussien, Rashad A.

doi:10.1016/j.aoas.2014.06.013

Cited by 20 publications

(9 citation statements)

References 34 publications

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“…Our results showed the negative effect of salt stress on the growth of the aerial and root part of S. offcinalis, confirming the results of Aftab et al [1] in Artemisia annua L. This reduction in growth can be attributed to the toxicity of Na + ions accumulated in plants [1,11] which leads to a nutritional imbalance [30,37,43]. These high concentrations of Na + accumulated in the plant decreased the Ca, P and K levels.…”

Section: Discussionsupporting

confidence: 87%

Improving salinity tolerance in Salvia officinalis L. by foliar application of salicylic acid

Es-sbihi

Hazzoumi

Aasfar

et al. 2021

Chem. Biol. Technol. Agric.

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Background Higher absorption and translocation of sodium (Na) and chlorine (Cl) ions in plant tissue can lead to serious physiological and biochemical changes. However, salicylic acid (SA) is a natural signaling molecule responsible for the induction of environmental stress tolerance in plants. Spraying SA could provide protection against several types of stress such as salinity. This study aimed to show the influence of SA spraying (0.5 and 1 mM) on the damaging effects of NaCl toxicity (150 mM) in Salvia officinalis L. plants. Results The results showed that salinity strongly inhibited the growth of aerial and root parts and this inhibition was accompanied by a significant decrease in the production of chlorophyll pigments (by 63%). There was also a significant accumulation of Na, mainly in the roots. This accumulation of Na+ ions was accompanied by a decrease of calcium (Ca), potassium (K) and phosphorus (P) concentrations. However, SA mainly at 0.5 mM, greatly improved plant growth, essential oils and chlorophyll pigments synthesis. Besides, SA led to a decrease in Na content and an improvement in Ca, K and P content in the leaves and roots. Salt stress decreased the essential oil yield from 1.2% (control) to 0.4% (NaCl). Furthermore, gas chromatography–mass spectrometry analysis of essential oils exhibited that the 1,8-cineol, α-thujone, and camphor were identified as the main components of essential oils under all treatments. However, we noted in stressed plant treated or not with SA the appearance of the new majority compound thujanone. Salt stress decreased the major compounds content. SA spray under stress condition increased the content of major compounds compared to stressed plants untreated with SA. The histological study in scanning electron microscopy showed the peltate glands density decreased strongly under NaCl toxicity. However, SA application on stressed plants increased peltate glands density. On the other hand, the glands of stressed plants often show certain anomalies in the morphology: the first anomaly observed was the presence of glandular structures characterized by deformations in the form of small protuberances located on the head of the gland. The second, a less common abnormality is the morphological change in certain glands that change from a spherical to an ovoid shape. On another hand, all these anomalies were not detected in stressed plants sprayed with SA. Therefore, the absence of these anomalies under the effect of SA showed the repairing effect of this growth regulator. Conclusion The findings of the present work suggest that spraying of SA may be useful for improving the plant growth in NaCl-contaminated areas.

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Section: Discussionsupporting

confidence: 87%

Improving salinity tolerance in Salvia officinalis L. by foliar application of salicylic acid

Es-sbihi

Hazzoumi

Aasfar

et al. 2021

Chem. Biol. Technol. Agric.

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“…Of them, salicylic acid (SA) and thiourea (TU) play a vital role in oxidative stress response. SA being an endogenously produced phenolic compound helps plants in tolerating oxidative (Noreen et al 2009), salinity (Arfan et al 2007), and heavy metal stresses (Wang et al 2004), along with affecting photosynthesis in plants (Rashad and Hussien 2014). SA is reported to conceal ROS production by enhancing the enzymatic antioxidant activities such as superoxide dismutase (SOD) and catalase (CAT) (He et al 2005), whereas chilling temperature stress tolerance in maize seedlings was related to enhanced CAT activities (Prasad 1997).…”

Section: Introductionmentioning

confidence: 97%

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

Waqas

Khan

Akhter

et al. 2017

Environ Sci Pollut Res

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Chilling stress hampers the optimal performance of maize under field conditions precipitously by inducing oxidative stress. To confer the damaging effects of chilling stress, the present study aimed to investigate the effects of some natural and synthetic plant growth regulators, i.e., salicylic acid (SA), thiourea (TU), sorghum water extract (SWE), and moringa leaf extract (MLE) on chilling stress tolerance in autumn maize hybrid. Foliar application of growth regulators at low concentrations was carried out at six leaf (V6) and tasseling stages. An increase in crop growth rate (CGR), leaf area index (LAI), leaf area duration (LAD), plant height (PH), grain yield (GY), and total dry matter accumulation (TDM) was observed in exogenously applied plants as compared to control. In addition, improved physio-biochemical, phenological, and grain nutritional quality attributes were noticed in foliar-treated maize plots as compared to non-treated ones. SA-treated plants reduced 20% electrolyte leakage in cell membrane against control. MLE and SA were proved best in improving total phenolic, relative water (19-23%), and chlorophyll contents among other applications. A similar trend was found for photosynthetic and transpiration rates, whereas MLE and SWE were found better in improving CGR, LAI, LAD, TDM, PH, GY, grains per cob, 1000 grain weight, and biological yield among all treatments including control. TU and MLE have significantly reduced the duration in phenological events of crop at the reproductive stage. MLE, TU, and SA also improved the grain protein, oil, and starch contents as compared to control. Enhanced crop water productivity was also observed in MLE-treated plants. Economic analysis suggested that MLE and SA applications were more economical in inducing chilling stress tolerance under field conditions. Although eliciting behavior of all growth regulators improved morpho-physiological attributes against suboptimal temperature stress conditions, MLE and SA acted as leading agents which proved to be better stress alleviators by improving plant physio-biochemical attributes and maize growth.

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“…Kinetin (10 ppm) was the most stimulating, followed by 2,4,5-trichlorophenoxyacetic acid (5 ppm), 2,3,5-triiodobenzoic acid (25 ppm), and gibberellic acid (25 ppm) (Singh and Jain 1981). A stimulating effect of auxin NAA on chlorophyll production was also observed in Vigna mungo (Jeyakumar et al 2008) and in maize by Rashad and Hussien (2014), who suggested the compensative effect of gibberellic acid (100 mg/L) against chlorophyll degradation in leaves caused by the irrigation of saline water.…”

Section: Discussionmentioning

confidence: 73%

LED illumination and plant growth regulators’ effects on growth and phenolic acids accumulation in Moluccella laevis L. in vitro cultures

et al. 2020

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Moluccella laevis L. (Lamiaceae) is an annual ornamental plant, naturally occurring in the areas of Western and Central Asia (Irano-Turanian area). It is a popular ornamental species, but its phytochemical profile remains poorly studied. This study presents the first report on in vitro cultures of M. laevis. The influence of two types of illumination and plant growth regulators (PGRs) supplementation on the morphogenetic response and the content of phenolic compounds were examined. Shoots were cultured on Murashige and Skoog (MS) solid basal medium. White light or photosynthetic active radiation (PAR) as well as three concentrations of 6-benzylaminopurine (BA) 2, 3 or 4 µM and one of the three auxins: 1-naphthaleneacetic acid (NAA), indole-3-acetic acid (IAA) or 4-amino-3,5,6-trichloropicolinic acid (picloram-PIC) at concentration of 0.5 µM were used for shoot proliferation. The highest number of axillary shoots per explant (3.4) was obtained for shoots grown on MS medium supplemented with 3-µM BA and 0.5-μM NAA under PAR light. However, the effect of PGRs treatment on shoot growth and development was stronger than the influence of light. The phytochemical analysis using Ultra-Performance Liquid Chromatography-Mass Spectrometry allowed identification of four hydroxycinnamic acids (caffeic, ferulic, rosmarinic, chlorogenic) and two cyanidin glycosides (cyanidin 3-O-galactoside, and cyanidin 3-O-malonylglucoside) in shoot clusters and callus tissue.

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A comparison study on the effect of some growth regulators on the nutrients content of maize plant under salinity conditions

Cited by 20 publications

References 34 publications

Improving salinity tolerance in Salvia officinalis L. by foliar application of salicylic acid

Improving salinity tolerance in Salvia officinalis L. by foliar application of salicylic acid

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

LED illumination and plant growth regulators’ effects on growth and phenolic acids accumulation in Moluccella laevis L. in vitro cultures

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