دورية أكاديمية
أعرض في EDS

Heavy Metal Effects on Biodiversity and Stress Responses of Plants Inhabiting Contaminated Soil in Khulais, Saudi Arabia.

التفاصيل البيبلوغرافية
العنوان: Heavy Metal Effects on Biodiversity and Stress Responses of Plants Inhabiting Contaminated Soil in Khulais, Saudi Arabia.
المؤلفون: Alsherif EA; Biology Department, College of Science and Arts at Khulis, University of Jeddah, Jeddah 21959, Saudi Arabia., Al-Shaikh TM; Biology Department, College of Science and Arts at Khulis, University of Jeddah, Jeddah 21959, Saudi Arabia., AbdElgawad H; Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, 2000 Antwerp, Belgium.; Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt.
المصدر: Biology [Biology (Basel)] 2022 Jan 20; Vol. 11 (2). Date of Electronic Publication: 2022 Jan 20.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI Country of Publication: Switzerland NLM ID: 101587988 Publication Model: Electronic Cited Medium: Print ISSN: 2079-7737 (Print) Linking ISSN: 20797737 NLM ISO Abbreviation: Biology (Basel) Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI, 2012-
مستخلص: Accumulation of heavy metals in soil is becoming an increasingly serious eco-environmental problem. Thus, investigating how plants mitigate heavy metal toxicity is necessary to reduce the associated risks. Here, we aimed to assess the bioremediation and stress defense strategies of tolerant plant species grown under complex heavy metals contamination. To this end, a field study was conducted on the vegetation cover of sites with different soil pollution levels. Forty-two plant species that belong to 38 genera and 21 families were identified. The pollution had a significant impact on plant richness in the polluted sites. Out of several screened plants, Amaranthus retroflexus L. was selected because of its high relative density (16.7) and a high frequency (100%) in the most polluted sites. The selected species showed a high biological concentration factor (BCF) and low translocation factor (TF) for Cu, As and Ni. To control the heavy metal-induced oxidative damage, A. retroflexus invested in detoxification (metallothionein and phytochelatins, glutathione and glutathione-S-transferase (GST). At the organ level, oxidase damage (H 2 O 2 , lipid and protein peroxidation) was observed, particularly in the roots. To mitigate heavy metal oxidative stress, antioxidant mechanisms (e.g., tocopherols, glutathione, peroxidases, catalase, peroxide dismutase and ASC-GSH cycle) were upregulated, mainly in the roots. Overall, our results suggested the potentiality of A. retroflexus as a promising bioremediatory and stress-tolerant plant at the same time; moreover, defense and detoxification mechanisms were uncovered.
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معلومات مُعتمدة: MoE-IF-G-20-01 Ministry of Education in Saudi Arabia
فهرسة مساهمة: Keywords: amaranthus; bioindicator; heavy metal; phytoremediation; sewage; vegetation
تواريخ الأحداث: Date Created: 20220225 Latest Revision: 20220228
رمز التحديث: 20221213
مُعرف محوري في PubMed: PMC8869145
DOI: 10.3390/biology11020164
PMID: 35205031
قاعدة البيانات: MEDLINE
الوصف
تدمد:2079-7737
DOI:10.3390/biology11020164