Influence of Heavy Metal Stress on Growth and Flowering of<i>Salvia Splendens</i>Ker.- Gawl.

Atanassova, B.; Zapryanova, N.

doi:10.1080/13102818.2009.10818393

Cited by 12 publications

(5 citation statements)

References 2 publications

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“…Intriguingly, the presence of these metals also induced B. polystachyon to flower, as shown in Figure 1D. This finding aligns with the previously reported observation that heavy metals can promote flowering, suggesting a more complex interplay between these elements and plant development [69]. Similar to Cyamopsis tetragonoloba L. and Sesamum indicum L. [70], which exhibited tolerance to lead (II), B. polystachyon also demonstrated the ability to tolerate low levels of heavy metals, according to this study.…”

Section: Effect Of Heavy Metal On In Vitro Propagation and Tolerance ...supporting

confidence: 91%

Unveiling the Dual Nature of Heavy Metals: Stressors and Promoters of Phenolic Compound Biosynthesis in Basilicum polystachyon (L.) Moench In Vitro

Das,

Sultana,

Mondal

et al. 2023

Plants

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The global industrial revolution has led to a substantial rise in heavy metal levels in the environment, posing a serious threat to nature. Plants synthesize phenolic compounds under stressful conditions, which serve as protective agents against oxidative stress. Basilicum polystachyon (L.) Moench is an herbaceous plant of the Lamiaceae family. Some species within this family are recognized for their capacity to remediate sites contaminated with heavy metals. In this study, the effects of mercury (II) chloride and lead (II) nitrate on the in vitro propagation of B. polystachyon were investigated. Shoot tips from in vitro plantlets were cultured in Murashige and Skoog’s (MS) media with heavy metals ranging from 1 to 200 µM to induce abiotic stress and enhance the accumulation of phenolic compounds. After three weeks, MS medium with 1 µM of lead (II) supported the highest shoot multiplication, and the maximum number of roots per explant was found in 100 µM of lead (II), whereas a higher concentration of heavy metals inhibited shoot multiplication and root development. The plantlets were hardened in a greenhouse with a 96% field survival rate. Flame atomic absorption spectroscopy (FAAS) was used to detect heavy metal contents in plant biomass. At both 200 µM and 50 µM concentrations, the greatest accumulation of mercury (II) was observed in the roots (16.94 ± 0.44 µg/g) and shoots (17.71 ± 0.66 µg/g), respectively. Similarly, lead (II) showed the highest accumulation in roots (17.10 ± 0.54 µg/g) and shoots (7.78 ± 0.26 µg/g) at 200 µM and 50 µM exposures, respectively. Reverse-phase high-performance liquid chromatography (RP-HPLC) identified and quantified various phenolic compounds in B. polystachyon leaves, including gallic acid, caffeic acid, vanillic acid, p-coumaric acid, ellagic acid, rosmarinic acid, and trans-cinnamic acid. These compounds were found in different forms, such as free, esterified, and glycosylated. Mercury (II)-exposed plants exhibited elevated levels of vanillic acid (1959.1 ± 3.66 µg/g DW), ellagic acid (213.55 ± 2.11 µg/g DW), and rosmarinic acid (187.72 ± 1.22 µg/g DW). Conversely, lead (II)-exposed plants accumulated higher levels of caffeic acid (42.53±0.61 µg/g DW) and p-coumaric acid (8.04 ± 0.31 µg/g DW). Trans-cinnamic acid was the predominant phenolic compound in control plants, with a concentration of 207.74 ± 1.45 µg/g DW. These results suggest that sublethal doses of heavy metals can act as abiotic elicitors, enhancing the production of phenolic compounds in B. polystachyon. The present work has the potential to open up new commercial opportunities in the pharmaceutical industry.

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Section: Effect Of Heavy Metal On In Vitro Propagation and Tolerance ...supporting

confidence: 91%

Unveiling the Dual Nature of Heavy Metals: Stressors and Promoters of Phenolic Compound Biosynthesis in Basilicum polystachyon (L.) Moench In Vitro

Das,

Sultana,

Mondal

et al. 2023

Plants

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“…In consonant with our findings, Al Khateeb and Al-Qwasemeh [ 12 ] observed a negative correlation of Zn at high concentration to the growth parameters (shoot length, number of roots and leaves, and fresh weight) of Solanum nigrum . As a consequence of the toxicity of the metal at the leaf level, crops may have fewer leaves, smaller stem diameters, and fewer buds due to altered biochemical and physiological activities [ [ [13] , [14] , [15] ]]. The transportation of the minerals occurs via the xylem in ionic form [ 16 ] with the help of organic acids [ 17 ].…”

Section: Resultsmentioning

confidence: 99%

“…Plants which accumulate high quantities of HMs are therefore useful in operations to reclaim HM polluted environments. Accumulation of HMs has been recorded to have an adverse effect on the growth of crops especially plants that do not have the hyperaccumulating ability [ 15 ]. The correlation of the growth parameters of tomato and the HM accumulation factors of the root was done ( Table 2 ).…”

Section: Resultsmentioning

confidence: 99%

Relationship between different physiological processes of Tomato seedlings exposed to acid mine water Uncovered using correlation analysis

Ogugua

Kanu

Ntushelo

2023

Heliyon

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“…Although essential heavy metals are also classified as micronutrients playing important roles in physiological and biochemical processes in plants, at high concentrations in soils they usually have toxic effects on plants, e.g., low biomass accumulation, chlorosis, suspension of growth and photosynthesis, changes in water balance and nutrient absorption and even senescence, leading to plant death [8,9]. In humans, Cu and Zn are generally considered non-toxic metals, with toxic effects such as intravascular hemolysis, liver and kidney failure [10] in the case of Cu, and nausea, vomiting, epigastric pain, lethargy, and fatigue symptoms for Zn occurring extremely rarely [11].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Heavy Metal Accumulation on Some Physiological Parameters in Silphium perfoliatum L. Plants Grown in Hydroponic Systems

Sumalan¹,

Nescu²,

Berbecea³

et al. 2023

Plants

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Heavy metals like cadmium (Cd), copper (Cu), lead (Pb), and zinc (Zn), resulting from anthropogenic activities, are elements with high persistence in nature, being able to accumulate in soils, water, and plants with significant impact to human and animal health. This study investigates the phytoremediation capacity of Silphium perfoliatum L. as a specific heavy metal hyperaccumulator and the effects of Cu, Zn, Cd, and Pb on some physiological and biochemical indices by growing plants under floating hydroponic systems in nutrient solutions under the presence of heavy metals. One-year-old plants of S. perfoliatum grown for 20 days in Hoagland solution with the addition of (ppm) Cu-400, Zn-1200, Cd-20, Pb-400, and Cu+Zn+Cd+Pb (400/1200/20/400) were investigated with respect to the control. The level of phytoremediation, manifested by the ability of heavy metal absorption and accumulation, was assessed. In addition, the impact of stress on the proline content, photosynthetic pigments, and enzymatic activity, as being key components of metabolism, was determined. The obtained results revealed a good absorption and selective accumulation capacity of S. perfoliatum plants for the studied heavy metals. Therefore, Cu and Zn mainly accumulate in the stems, Cd in the roots and stems, while Pb mainly accumulates in the roots. The proline tended to increase under stress conditions, depending on the pollutant and its concentration, with higher values in leaves and stems under the associated stress of the four metals and individually for Pb and Cd. In addition, the enzymatic activity recorded different values depending on the plant organ, its type, and the metal concentration on its substrate. The obtained results indicate a strong correlation between the metal type, concentration, and the mechanisms of absorption/accumulation of S. perfoliatum species, as well as the specific reactions of metabolic response.

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Influence of Heavy Metal Stress on Growth and Flowering ofSalvia SplendensKer.- Gawl.

Cited by 12 publications

References 2 publications

Unveiling the Dual Nature of Heavy Metals: Stressors and Promoters of Phenolic Compound Biosynthesis in Basilicum polystachyon (L.) Moench In Vitro

Unveiling the Dual Nature of Heavy Metals: Stressors and Promoters of Phenolic Compound Biosynthesis in Basilicum polystachyon (L.) Moench In Vitro

Relationship between different physiological processes of Tomato seedlings exposed to acid mine water Uncovered using correlation analysis

The Impact of Heavy Metal Accumulation on Some Physiological Parameters in Silphium perfoliatum L. Plants Grown in Hydroponic Systems

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