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  1. Article: Editorial: Interactive effects of plant growth-promoting microbes and nanoparticles on the physiology, growth, and yield of crops.

    Ahmad, Aqeel / Akram, Waheed / Sardar, Rehana / Yasin, Nasim Ahmad

    Frontiers in plant science

    2024  Volume 15, Page(s) 1338470

    Language English
    Publishing date 2024-03-07
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2024.1338470
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  2. Article ; Online: Alleviation of salinity stress in zinc oxide nanoparticle-treated

    Javeed, Ayesha / Ahmed, Shakil / Sardar, Rehana

    Functional plant biology : FPB

    2023  Volume 50, Issue 11, Page(s) 941–954

    Abstract: Salt stress is a major abiotic stress that affects the world's agricultural soils and crop yield, the system that ensures food production. In the present study, three different concentrations of zinc oxide nanoparticles (250, 500 and 750ZnONPsmg L-1 ) ... ...

    Abstract Salt stress is a major abiotic stress that affects the world's agricultural soils and crop yield, the system that ensures food production. In the present study, three different concentrations of zinc oxide nanoparticles (250, 500 and 750ZnONPsmg L-1 ) were applied by soil drenching. The treatments aimed to improve the phytochemical characteristics of Lagenaria siceraria L. (bottle gourd) by lowering the oxidative stress brought on by salinity stress (200ppm NaF). Green synthesised ZnO NPs were prepared, having hexagonal and spherical shapes and sizes 16-35nm. Salt stress reduced fresh and dry biomass of plants and improved production of proline. ZnO NPs improved antioxidant response by enhancing catalase, ascorbate peroxidase, superoxide dismutase and peroxidase activities, and protecting cellular structures by eliminating free radicals and reactive oxygen species. The 500mg L-1 ZnO NPs treatment improved total chlorophyll (31%), total soluble sugars (23%) and maintained the gas exchange parameters under salt stress. This treatment also enhanced the biosynthesis of osmotic regulators (proline) by 19%, Na+ by 22% and Zn2+ by 17%, assisting mitigation of salt stress-mediated toxicity in plants. This study demonstrates that ZnO NP-treated seedlings show improved growth attributes, suggesting that ZnO NPs could be advantageous for L. siceraria cultivation in salt polluted areas and could be utilised in place of conventional Zn fertiliser for better crop yield.
    MeSH term(s) Antioxidants/pharmacology ; Zinc Oxide/pharmacology ; Zinc Oxide/chemistry ; Nanoparticles/chemistry ; Salt Stress ; Soil/chemistry ; Proline
    Chemical Substances Antioxidants ; Zinc Oxide (SOI2LOH54Z) ; Soil ; Proline (9DLQ4CIU6V)
    Language English
    Publishing date 2023-10-21
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2071582-1
    ISSN 1445-4416 ; 1445-4408
    ISSN (online) 1445-4416
    ISSN 1445-4408
    DOI 10.1071/FP23069
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  3. Article ; Online: Glutathione primed seed improved lead-stress tolerance in

    Ahmed, Shakil / Khan, Mawra / Sardar, Rehana

    International journal of phytoremediation

    2023  Volume 25, Issue 12, Page(s) 1614–1624

    Abstract: Heavy metal toxicity is a major environmental issue that affects all life forms, including plants. The accumulation of lead (Pb) in agricultural soils is a significant contributor to reduced crop yields, and it poses serious health risks to people who ... ...

    Abstract Heavy metal toxicity is a major environmental issue that affects all life forms, including plants. The accumulation of lead (Pb) in agricultural soils is a significant contributor to reduced crop yields, and it poses serious health risks to people who consume lead-contaminated agricultural products. The current study was undertaken to investigate the beneficial effects of glutathione (GSH) on the amelioration of stress induced by Pb (300 mg kg
    MeSH term(s) Humans ; Lead/toxicity ; Lead/metabolism ; Brassica rapa/metabolism ; Biodegradation, Environmental ; Glutathione/metabolism ; Glutathione/pharmacology ; Seedlings ; Brassica napus/metabolism ; Soil ; Seeds/metabolism ; Antioxidants/metabolism ; Antioxidants/pharmacology
    Chemical Substances Lead (2P299V784P) ; Glutathione (GAN16C9B8O) ; Soil ; Antioxidants
    Language English
    Publishing date 2023-02-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2055357-2
    ISSN 1549-7879 ; 1522-6514
    ISSN (online) 1549-7879
    ISSN 1522-6514
    DOI 10.1080/15226514.2023.2178380
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  4. Article: Titanium dioxide nanoparticles mitigate cadmium toxicity in Coriandrum sativum L. through modulating antioxidant system, stress markers and reducing cadmium uptake

    Sardar, Rehana / Ahmed, Shakil / Yasin, Nasim Ahmad

    Environmental pollution. 2022 Jan. 01, v. 292

    2022  

    Abstract: Anthropogenic activities are the foremost reason of metal pollution in soils of the cultivated areas, resulting abnormal physiochemical processes in plants. Among metals contaminants, cadmium (Cd) is one of the most injurious contaminants that ... ...

    Abstract Anthropogenic activities are the foremost reason of metal pollution in soils of the cultivated areas, resulting abnormal physiochemical processes in plants. Among metals contaminants, cadmium (Cd) is one of the most injurious contaminants that deleteriously affect physiological activities, growth and yield of the crop plants. Keeping in view the stress mitigation potential of titanium dioxide (TiO₂), the existing research work was premeditated to inspect the beneficial role of seed priming with titanium dioxide nanoparticles (TiO₂-NPs) on biochemical, morphological and physiological characteristics of Coriandrum sativum L. (coriander) plants under Cd stress. For this purpose, C. sativum seeds were primed with 0, 40, 80 and 160 mg L⁻¹ TiO₂-NPs. Cadmium stress triggered a significant decrease in chlorophyll a content (49%), chlorophyll b content (44%), photosynthetic rate (62%) and plant growth (51%) as compared with control. Tanium dioxide nanoparticles treated seedlings exhibited reduced Cd contents besides improved agronomic traits (seedlings biomass, number of seeds and yield). The TiO₂-NPs treatment declined the magnitude of EL and MDA by 1.5 fold and 1.71 fold, respectively. Furthermore, TiO₂-NPs diminished oxidative injuries in plants exposed to Cd stress. Additionally, TiO₂-NPs enhanced the biosynthesis of osmatic regulators (proline) by 47% which helped in the mitigation of Cd persuaded toxicity in plants. Briefly, treatment of 80 mg L⁻¹ TiO₂-NPs perhaps ameliorates the deleterious influence of Cd stress and enhance the yield of coriander.
    Keywords Coriandrum sativum ; antioxidants ; biomass ; biosynthesis ; cadmium ; chlorophyll ; photosynthesis ; plant growth ; proline ; titanium dioxide
    Language English
    Dates of publication 2022-0101
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2021.118373
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    In stock of ZB MED Bonn / Germany

    Z 4136: Show issues

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  5. Article: Role of exogenously applied putrescine in amelioration of cadmium stress in Coriandrum sativum by modulating antioxidant system

    Sardar, Rehana / Ahmed, Shakil / Yasin, Nasim Ahmad

    International journal of phytoremediation. 2022 July 29, v. 24, no. 9

    2022  

    Abstract: Abiotic stress reduces the plant growth and biomass production. Putrescine (Put) may be applied to alleviate numerous types of abiotic stresses in plants. The present research was intended to evaluate the role of exogenously applied Put in extenuation of ...

    Abstract Abiotic stress reduces the plant growth and biomass production. Putrescine (Put) may be applied to alleviate numerous types of abiotic stresses in plants. The present research was intended to evaluate the role of exogenously applied Put in extenuation of cadmium (Cd) stress in coriander plants. Coriander seeds primed with 0.25, 0.5, and1 mM Put were allowed to grow in 50 mg kg⁻¹ Cd contaminated soil for one month. Put treatment improved seed germination, gas exchange attributes, root growth and shoot growth of coriander. The improved activity of stress-responsive enzymes such as superoxide dismutase, catalase and peroxidase, besides amplification of proline was observed in Put treated seedlings under Cd stress. In addition, a reduced amount of total soluble protein and sugars content were noticed in Cd stressed seedlings. Nevertheless, Put reduced MDA level in treated plants. Our results demonstrated that Put mitigated Cd induced stress by modulating antioxidants and photosynthetic activity of coriander plants. Novelty statement Most of the researchers have studied the role of endogenous putrescine in alleviation of plant stress. However, during current study, we primed coriander seeds with putrescine. Our results elucidated very promising role of exogenously applied putrescine in stress mitigation and growth improvement of coriander seedlings under Cd stress. The findings of current study advocate the application of putrescine for stress alleviation in crop plants.
    Keywords Coriandrum sativum ; abiotic stress ; antioxidants ; biomass production ; cadmium ; catalase ; gas exchange ; peroxidase ; photosynthesis ; phytoremediation ; plant stress ; polluted soils ; proline ; putrescine ; root growth ; seed germination ; superoxide dismutase
    Language English
    Dates of publication 2022-0729
    Size p. 955-962.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 2055357-2
    ISSN 1549-7879 ; 1522-6514
    ISSN (online) 1549-7879
    ISSN 1522-6514
    DOI 10.1080/15226514.2021.1985961
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  6. Article ; Online: Triacontanol priming as a smart strategy to attenuate lead toxicity in Brassica oleracea L

    Ahmed, Shakil / Ahmad, Maria / Sardar, Rehana / Ismail, Muhammad Amir

    International Journal of Phytoremediation. 2023 July 29, v. 25, no. 9, p. 1173-1188

    2023  , Page(s) 1173–1188

    Abstract: The most prevalent heavy metal pollutant in the environment is lead (Pb). Lead potentially contribute 10% of overall heavy metal contamination. Lead uptake by plants has been found to have an impact on their metabolic functions, photosynthetic activity, ... ...

    Abstract The most prevalent heavy metal pollutant in the environment is lead (Pb). Lead potentially contribute 10% of overall heavy metal contamination. Lead uptake by plants has been found to have an impact on their metabolic functions, photosynthetic activity, growth, and productivity. The current experiment was conducted to investigate the impact of triacontanol (Tria) for attenuating Pb stress in Brassica oleracea var. italic (broccoli). Three different Tria concentrations (10, 20 and 30 µmol L⁻¹) were used to prime broccoli seeds. Growth of broccoli was reduced when exposed to Pb-driven toxicity. Additionally, Pb had a deleterious impact on the protein quantity, stomatal conductance, transpiration and photosynthetic rate. Nevertheless, plants grown from seeds primed with Tria2 (20 µmol L⁻¹ Tria) exhibited improved morphological characteristics, uptake of mineral content (Mn⁺², Zn⁺², K⁺¹, Na⁺¹) along with biomass production. There was 1.6-fold increase in photosynthetic rate, the phenol (1.3 folds), and DPPH activity (1.2 folds) in seed primed with Tria2. Additionally, plants treated with Tria2 demonstrated enhanced MTI and gas exchange characteristics that improves plant stress tolerance under Pb stress. Seed priming with Tria can be used to increase plant tolerance to Pb stress as evidenced by the improved growth and biochemical characteristics of broccoli seedlings.
    Keywords Brassica oleracea ; biomass production ; broccoli ; gas exchange ; heavy metals ; lead ; mineral content ; phenol ; photosynthesis ; phytoremediation ; plant stress ; pollutants ; stomatal conductance ; stress tolerance ; toxicity ; triacontanol ; DPPH activity ; growth ; gas exchange activity ; lead stress ; seed priming
    Language English
    Dates of publication 2023-0729
    Size p. 1173-1188
    Publishing place Taylor & Francis
    Document type Article ; Online
    ZDB-ID 2055357-2
    ISSN 1549-7879 ; 1522-6514
    ISSN (online) 1549-7879
    ISSN 1522-6514
    DOI 10.1080/15226514.2022.2143478
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    In stock of ZB MED Bonn / Germany

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  7. Article: Editorial: Environmental extremes threatening food crops.

    Yasin, Nasim Ahmad / Khan, Tanveer Alam / Ali, Aamir / Ahmed, Mukhtar / Sardar, Rehana

    Frontiers in plant science

    2023  Volume 14, Page(s) 1172539

    Language English
    Publishing date 2023-04-14
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2023.1172539
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  8. Article: Seed Priming with Triacontanol Alleviates Lead Stress in

    Ahmed, Shakil / Amjad, Minahil / Sardar, Rehana / Siddiqui, Manzer H / Irfan, Mohammad

    Plants (Basel, Switzerland)

    2023  Volume 12, Issue 8

    Abstract: Worldwide, crop productivity is highly influenced by heavy metal toxicity. Lead (Pb) the is second-most toxic heavy metal that has high persistence in soil. Lead is translocated in plants from rhizosphere soil and enters the food chain, where it poses a ... ...

    Abstract Worldwide, crop productivity is highly influenced by heavy metal toxicity. Lead (Pb) the is second-most toxic heavy metal that has high persistence in soil. Lead is translocated in plants from rhizosphere soil and enters the food chain, where it poses a significant hazard to the health of humans. In the present investigation, seed priming with triacontanol (Tria) was used to mitigate Pb phytotoxicity in
    Language English
    Publishing date 2023-04-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants12081672
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  9. Article: Exogenous application of glutathione enhanced growth, nutritional orchestration and physiochemical characteristics of

    Ahmad, Maria / Ahmed, Shakil / Yasin, Nasim Ahmad / Wahid, Abdul / Sardar, Rehana

    Physiology and molecular biology of plants : an international journal of functional plant biology

    2023  Volume 29, Issue 8, Page(s) 1103–1116

    Abstract: A major obstacle to agricultural production and yield quality is heavy metal contamination of the soil and water, which leads to lower productivity and quality of crops. The situation has significantly worsened as a result of the growing population and ... ...

    Abstract A major obstacle to agricultural production and yield quality is heavy metal contamination of the soil and water, which leads to lower productivity and quality of crops. The situation has significantly worsened as a result of the growing population and subsequent rise in food consumption. The growth of nutrient-rich plants is hampered by lead (Pb) toxicity in the soil.
    Language English
    Publishing date 2023-08-26
    Publishing country India
    Document type Journal Article
    ZDB-ID 2487126-6
    ISSN 0974-0430 ; 0971-5894
    ISSN (online) 0974-0430
    ISSN 0971-5894
    DOI 10.1007/s12298-023-01346-0
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  10. Article ; Online: Titanium dioxide nanoparticles mitigate cadmium toxicity in Coriandrum sativum L. through modulating antioxidant system, stress markers and reducing cadmium uptake.

    Sardar, Rehana / Ahmed, Shakil / Yasin, Nasim Ahmad

    Environmental pollution (Barking, Essex : 1987)

    2021  Volume 292, Issue Pt A, Page(s) 118373

    Abstract: Anthropogenic activities are the foremost reason of metal pollution in soils of the cultivated areas, resulting abnormal physiochemical processes in plants. Among metals contaminants, cadmium (Cd) is one of the most injurious contaminants that ... ...

    Abstract Anthropogenic activities are the foremost reason of metal pollution in soils of the cultivated areas, resulting abnormal physiochemical processes in plants. Among metals contaminants, cadmium (Cd) is one of the most injurious contaminants that deleteriously affect physiological activities, growth and yield of the crop plants. Keeping in view the stress mitigation potential of titanium dioxide (TiO
    MeSH term(s) Antioxidants ; Cadmium/toxicity ; Chlorophyll A ; Coriandrum ; Nanoparticles ; Oxidative Stress ; Titanium/toxicity
    Chemical Substances Antioxidants ; Cadmium (00BH33GNGH) ; titanium dioxide (15FIX9V2JP) ; Titanium (D1JT611TNE) ; Chlorophyll A (YF5Q9EJC8Y)
    Language English
    Publishing date 2021-10-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2021.118373
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