Visual Quality and Morphological Responses of Rosemary Plants to UV-B Radiation and Salinity Stress

Moghaddam, Abolghasem Hamidi; Arouiee, Hossein; Moshtaghi, Nasrin; Azizi, Majid; Sefidkon, Fatemeh

doi:10.12911/22998993/94920

Cited by 7 publications

(6 citation statements)

References 48 publications

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“…Such conflicting results have been reported in many previous studies focusing on UV-B [ 6 , 28 , 29 , 30 , 31 , 32 , 33 ]. Exposure to a UV-B dose of 1.2, 4.3, 5.0, and 8.5 kJ d −1 was not found to affect growth in sunflower ( Helianthus annuus ), rosemary ( Rosmarinus officinalis ), soy bean ( Glycine max ), and basil ( Ocimum basilicum ), respectively [ 6 , 28 , 30 , 33 ]. However, biomass accumulation was inhibited in sugar beet ( Beta vulgaris ), soy bean and Arabidopsis, and maca ( Lepidium meyenii ), under 9.1, 10.0, and 18.2 kJ d −1 of UV-B, respectively [ 28 , 29 , 31 , 32 ].…”

Section: Discussionmentioning

confidence: 71%

“…It is known that exposure to high UV-B energy acts as a distress and negatively affects plant growth via ROS-mediated signaling pathway. Conversely, low UV-B energy acts as a eustress, has less harmful effects on plant growth, and renders plants tolerance against stress by increasing leaf thickness and activating defense mechanisms via specific UVR8 response pathway [ 6 , 9 , 28 ]. Such conflicting results have been reported in many previous studies focusing on UV-B [ 6 , 28 , 29 , 30 , 31 , 32 , 33 ].…”

Section: Discussionmentioning

confidence: 99%

“…Conversely, low UV-B energy acts as a eustress, has less harmful effects on plant growth, and renders plants tolerance against stress by increasing leaf thickness and activating defense mechanisms via specific UVR8 response pathway [ 6 , 9 , 28 ]. Such conflicting results have been reported in many previous studies focusing on UV-B [ 6 , 28 , 29 , 30 , 31 , 32 , 33 ]. Exposure to a UV-B dose of 1.2, 4.3, 5.0, and 8.5 kJ d −1 was not found to affect growth in sunflower ( Helianthus annuus ), rosemary ( Rosmarinus officinalis ), soy bean ( Glycine max ), and basil ( Ocimum basilicum ), respectively [ 6 , 28 , 30 , 33 ].…”

Section: Discussionmentioning

confidence: 99%

“…It has the potential to alter morphological, physiological, biochemical, and genetic properties of plants, and can induce oxidative stress in plants due to its strong energy [ 1 , 2 , 3 , 4 ]. As the ozone layer is depleted, increasing amounts of UV-B radiation are reaching the Earth’s surface, and studies on UV-B perception and signaling in plants have been actively conducted for the last 20 years [ 1 , 5 , 6 , 7 ]. These studies have demonstrated that high energy UV-B radiation generates reactive oxygen species (ROS) in chloroplast, mitochondria, nucleus, and apoplast, damaging DNA, protein, cell membrane, and chloroplast, subsequently inhibiting plant growth.…”

Section: Introductionmentioning

confidence: 99%

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Physiologic and Metabolic Changes in Crepidiastrum denticulatum According to Different Energy Levels of UV-B Radiation

Park

Lee

et al. 2020

IJMS

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Ultraviolet B (UV-B) light, as a physical elicitor, can promote the secondary metabolites biosynthesis in plants. We investigated effects of different energy levels of UV-B radiation on growth and bioactive compounds of Crepidiastrum denticulatum. Three-week-old seedlings were grown in a plant factory for 5 weeks. Plants were subjected to different levels of UV-B (0, 0.1, 0.25, 0.5, 1.0, and 1.25 W m−2), 6 h a day for 6 days. All UV-B treatments had no negative effect on the shoot dry weight; however, relatively high energy treatments (1.0 and 1.25 W m−2) inhibited the shoot fresh weight. UV-B light of 0.1, 0.25, and 0.5 W m−2 did not affect total chlorophyll and H2O2 contents; however, they increased total carotenoid content. On 4 days, 0.25 W m−2 treatment increased antioxidant capacity, total hydroxycinnamic acids (HCAs) content, and several sesquiterpenes. Treatments with 1.0 and 1.25 W m−2 increased total carotenoid, total HCAs, and H2O2 contents, and destroyed chlorophyll pigments, reducing maximum quantum yield of photosystem II and causing visible damage to leaves. Partial least squares discrimination analysis (PLS-DA) showed that secondary metabolites were distinguishably changed according to energy levels of UV-B. The potential of 0.25 W m−2 UV-B for the efficient production of bioactive compounds without growth inhibition in C. denticulatum was identified.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physiologic and Metabolic Changes in Crepidiastrum denticulatum According to Different Energy Levels of UV-B Radiation

Park

Lee

et al. 2020

IJMS

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“…

This study aims to assess the effect of salt stress by using concentrations of sodium chloride (0, 40,20, 60) mmol. L -1 .

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mentioning

confidence: 99%

The Impact of Salinity, Putrescin, and Melatonin Interactions on Green Bean Vegetative Indicators

Maola

Jaber

Ayied

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to assess the effect of salt stress by using concentrations of sodium chloride (0, 40, 20, 60) mmol. L-1. Putrescine (0.2 and 0.4) mmol. L-1 and Melatonin (0.2, 0.4) mmol. L-1 and their overlap in some physiological and phenotypic traits of a green bean plant. The experiment was carried out using a complete randomized design (CRD) as a two-factor experiment (putrescine and melatonin x sodium chloride salt concentrations). The results were statistically analyzed with 10 replications that included 20 root tips for each treatment, and the averages were compared using the least significant difference at the 0.05 probability. The results showed that the effect of salt stress led to a significant decrease in most of the studied traits, a concentration of 60 mmol. L-1 led to a decrease in the percentage of plant survival by average branch length, number of shoots, dry weight percentage, and chlorophyll content. Also, adding melatonin significantly increased most of the studied traits using concentrations of 0.2 and 0.4 mmol. L-1 compared to adding putrescin (0.2), as the average branch length increased by increase, the number of shoots, the survival rate of plants, the dry weight, and the percentage of chlorophyll. The experiment’s results also showed a significant effect of the interaction between salt stress and melatonin on most of the vegetative growth characteristics of green beans. The effect of putrescine led to a decrease in vegetative indicators due to its high concentration in the medium used in the experiment.

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Assessment of trace element and macronutrient accumulation capacity of two native plant species in three different Egyptian mine areas for remediation of contaminated soils

Rizwan

Elshamy

Abdel-Aziz

2019

Ecological Indicators

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Visual Quality and Morphological Responses of Rosemary Plants to UV-B Radiation and Salinity Stress

Cited by 7 publications

References 48 publications

Physiologic and Metabolic Changes in Crepidiastrum denticulatum According to Different Energy Levels of UV-B Radiation

Physiologic and Metabolic Changes in Crepidiastrum denticulatum According to Different Energy Levels of UV-B Radiation

The Impact of Salinity, Putrescin, and Melatonin Interactions on Green Bean Vegetative Indicators

Assessment of trace element and macronutrient accumulation capacity of two native plant species in three different Egyptian mine areas for remediation of contaminated soils

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