Phytostabilization and Physicochemical Responses of Korean Ecotype Solanum nigrum L. to Cadmium Contamination

Khan, Abdur Rahim; Ullah, Ihsan; Khan, Abdul Latif; Hong, Sung-Jun; Waqas, Muhammad; Park, Gun-Seok; Kwak, Yunyoung; Choi, Jin Woo; Jung, Byung-Kwon; Park, Man; Lee, In‐Jung; Shin, Jae‐Ho

doi:10.1007/s11270-014-2147-y

Cited by 46 publications

(19 citation statements)

References 43 publications

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“…Most of the phytoremediating plants suffer from low biomass, which often hinders their potential to perform the bioremediation potential from the contaminated sites. It was found that it can accumulate 192 mg kg −1 dry weight (DW) in leaves and still maintain its growth (Khan et al 2014). Valuable endophytic microbes that promote plant growth and detoxify hazardous heavy metals are essential to c o n s i d e r a s s u s t a i n a b l e t e c h n i q u e t o i m p r o v e phytoremediation efficiency (Sheng et al 2008;Chen et al 2010).…”

Section: Responsible Editor: Elena Maestrimentioning

confidence: 99%

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Improvement in phytoremediation potential of Solanum nigrum under cadmium contamination through endophytic-assisted Serratia sp. RSC-14 inoculation

Khan

Ullah

Khan

et al. 2015

Environ Sci Pollut Res

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The growth of hyperaccumulator plants is often compromised by increased toxicity of metals like cadmium (Cd). However, extraction of such metals from the soil can be enhanced by endophytic microbial association. Present study was aimed to elucidate the potential of microbe-assisted Cd phytoextraction in hyperaccumulator Solanum nigrum plants and their interactions under varied Cd concentrations. An endophytic bacteria Serratia sp. RSC-14 was isolated from the roots of S. nigrum. In addition to Cd tolerance up to 4 mM, the RSC-14 exhibited phosphate solubilization and secreted plant growth-promoting phytohormones such as indole-3-acetic acid (54 μg/mL). S. nigrum plants were inoculated with RSC-14 and were grown in different concentrations of Cd (0, 10, and 30 mg Cd kg(-1) sand). Results revealed that Cd treatment caused significant cessation in plant growth, biomass, and chlorophyll content, whereas significantly higher malondialdehyde (MDA) and electrolyte production in leaves were observed in a dose-dependent manner. Conversely, RSC-14 inoculation relived the toxic effects of Cd-induced stress by significantly increasing root/shoot growth, biomass production, and chlorophyll content and decreasing MDA and electrolytes contents. Ameliorative effects on host growth were also observed by the regulation of metal-induced oxidative stress enzymes such as catalase, peroxidase, and polyphenol peroxidase. Activities of these enzymes were significantly reduced in RSC-14 inoculated plants as compared to control plants under Cd treatments. The lower activities of stress responsive enzymes suggest modulation of Cd stress by RSC-14. The current findings support the beneficial uses of Serratia sp. RSC-14 in improving the phytoextraction abilities of S. nigrum plants in Cd contamination.

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Section: Responsible Editor: Elena Maestrimentioning

confidence: 99%

“…At the same time, S. nigrum seeds of local Korean ecotype as previously mentioned in Khan et al (2014) were surface sterilized with 2 % sodium hypochlorite for 30 min. This was followed by rinsing three times with 70 % ethanol and finally washed extensively with sterilized distilled water.…”

Section: Plant Experiments Setup and Plant Inoculationmentioning

confidence: 99%

Improvement in phytoremediation potential of Solanum nigrum under cadmium contamination through endophytic-assisted Serratia sp. RSC-14 inoculation

Khan

Ullah

Khan

et al. 2015

Environ Sci Pollut Res

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“…In addition to its economic importance as a medicinal plant, S. nigrum was characterized as a hyperaccumulator of cadmium (Cd) (Wei et al 2004;Khan et al 2014a). A previous study demonstrated that Microsphaeropsis sp.…”

Section: Introductionmentioning

confidence: 99%

Plant growth-promoting potential of endophytic fungi isolated from Solanum nigrum leaves

Khan

Ullah

Waqas

et al. 2015

World J Microbiol Biotechnol

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125

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Fungal endophytes have been characterized as producers of phytohormones and potent promoters of plant growth. In this study, two fungal endophytes, Fusarium tricinctum RSF-4L and Alternaria alternata RSF-6L, were isolated from the leaves of Solanum nigrum. Culture filtrates (CFs) from each isolate were initially screened for indole compounds, and assayed for their ability to promote the growth of Dongjin rice plants. Nearly all plant growth attributes examined (i.e., chlorophyll content, root-shoot length, and biomass production) were significantly enhanced upon treatment with fungal CFs. Subsequently, gas chromatography/mass spectrometry analyses were utilized to confirm the presence of phytohormones in the CF of each fungal endophytic isolate. These analyses revealed that RSF-4L and RSF-6L produced 54 and 30 µg/mL indole acetic acid, respectively, within their respective cultures. These findings suggest that the endophytes isolated in this study synthesize bioactive compounds that could play important roles in promoting plant growth.

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“…Due to its potent anticancer properties, recent studies have focused on its medicinal components, especially its phytochemical constituents (Ewais et al 2015), antimicrobial activities (Khan et al 2015) and anticancer mechanisms (Jawad et al 2015). In addition to its economic importance as a medicinal plant, S. nigrum was characterized as a newly discovered hyperaccumulator of cadmium (Cd) (Jiang et al 2016;Khan et al 2014) and the mechanisms of Cd accumulation have attracted increasing attention (Soares et al 2016;UdDin et al 2015). The plant is not cultivated, nevertheless, it is extensively harvested from the wild, leading to the possibility of its becoming an endangered species in the near future.…”

Section: Introductionmentioning

confidence: 99%

A Protocol for Rapid and High-Frequency In Vitro Propagation of Solanum nigrum L.

Zou¹,

Yang²,

Wu³

2017

JSM

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Phytostabilization and Physicochemical Responses of Korean Ecotype Solanum nigrum L. to Cadmium Contamination

Cited by 46 publications

References 43 publications

Improvement in phytoremediation potential of Solanum nigrum under cadmium contamination through endophytic-assisted Serratia sp. RSC-14 inoculation

Improvement in phytoremediation potential of Solanum nigrum under cadmium contamination through endophytic-assisted Serratia sp. RSC-14 inoculation

Plant growth-promoting potential of endophytic fungi isolated from Solanum nigrum leaves

A Protocol for Rapid and High-Frequency In Vitro Propagation of Solanum nigrum L.

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