Postdoctoral Research Environmental Science
Resume:
Dr. Sajjad Hassan Askari
PhD Botany
Government College University
Faisalabad, Pakistan
ad0s9n@r.postjobfree.com; ad0s9n@r.postjobfree.com Dear Sir/ Madam,
I am writing to express my strong interest in the Postdoctoral Research fellow in your Lab/ Institution, as advertised. I am highly motivated to continue my academic journey in these fields and believe that my background, research experience, and skillset align perfectly with the criteria you have outlined.
I recently earned my PhD in Botany with a thesis titled "Effect of exogenous application of some selected vitamins on physiological and biochemical responses of wheat (Triticum aestivum L.) under chromium stress." My research has been published in the esteemed Environmental Science and Pollution Research journal as "Askari, S. H., Ashraf, M. A., Ali, S., Rizwan, M., & Rasheed, R. (2021). Menadione sodium bisulfite alleviated chromium effects on wheat by regulating oxidative defense, chromium speciation, and ion homeostasis." This publication highlights my proficiency in conducting research in the environmental sciences, specifically focusing on phytoremediation and plant responses to stressors. In my doctoral research thesis, I conducted comprehensive investigations into the phytotoxic effects of chromium on wheat plants. My research is particularly notable for its multifaceted approach, where I explored the mitigation of chromium phytotoxic effects through the application of various vitamins. One key aspect of my research focused on "Menadione sodium bisulfite alleviated chromium effects on wheat by regulating oxidative defense, chromium speciation, and ion homeostasis," as published in the Environmental Science and Pollution Research journal. This publication showcases my ability to understand and manipulate the complex interactions between plants and metal toxicity.
Additionally, my thesis includes two other crucial components, namely the application of thiamine and tocopherol to mitigate chromium phytotoxic effects on wheat. While these aspects of my research have not yet been published separately, they are integral parts of my overall doctoral work, further demonstrating my proficiency in addressing diverse aspects of plant stress response mechanisms.
I believe that the comprehensive nature of my research, encompassing multiple strategies to mitigate the effects of chromium stress on wheat, showcases my adaptability, creativity, and determination in tackling complex environmental challenges. This experience has equipped me with a diverse skill set that I am eager to apply and expand upon in my postdoctoral research at in your Lab/ Institution. Moreover, I have contributed to the field through a book chapter titled " Recent advances in abiotic stress tolerance of plants through chemical priming: an overview," which demonstrates my ability to synthesize and communicate complex scientific concepts effectively.
In addition to my research, I have gained extensive experience in various aspects of your outlined criteria. I am proficient in using statistical software packages such as Minitab, CoStat, Statistics, RStudio, OriginPro, and Biorender, allowing me to analyze data rigorously and publish research effectively. My experience includes setting up pot experiments, conducting ecological surveys, and using biostatistics to analyze and interpret data. Furthermore, I have presented my research at several national level events, enhancing my oral communication skills and demonstrating my ability to collaborate with peers in a diverse academic environment. I have also guided lab research students during their lab analysis and pot experiment set-up, fostering teamwork and knowledge transfer. In conclusion, my background, research experience, and commitment to fulfilling the outlined criteria make me an ideal candidate for the Postdoctoral Research position in in your Lab/ Institution. I am excited about the prospect of contributing to your institution's research endeavors and furthering my academic career. I look forward to the opportunity to discuss my qualifications and potential contributions in more detail.
Thank you for considering my application. I eagerly anticipate the possibility of joining your esteemed academic community as a postdoctoral researcher. Sincerely,
Dr. Sajjad Hassan Askari
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Surname(s) First name(s)
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Curriculum Vitae
Personal information
Surname(s) / First name(s) Sajjad Hassan Askari
Address(es) Current: Office Department of Botany, GC University, Allama Iqbal Road, Faisalabad, 38000, Punjab, Pakistan.
Permanent: House # 82, Canal Garden Town, Near Allied School, Tandlianwala, Faisalabad. Telephone(s) Land Line: 041******* Mobile: +92-346-*******, +923********* E-mail ad0s9n@r.postjobfree.com; ad0s9n@r.postjobfree.com Nationality Pakistani
Date of birth 30-March-1990
Gender Male
Work experience
Dates Sep-2012 – Till date
Occupation or position held Science Teacher (EST)
Main activities and responsibilities Teaching
Name and address of employer Govt. MC High School Tandlianwala, Faisalabad Type of business or sector School Education Department Education and training
Dates Sep, 2016 – Sep, 2019
Title of qualification awarded Ph.D. (Botany)
Principal subjects/occupational skills
covered
Botany / Antioxidant enzyme activity analysis, CAT, POD, and SOD Isoforms detection by Native- PAGE, Spectrophotometry, Flame-photometry
Thesis Entitled “Effect of Exogenous Application of Some Selected vitamins on Physiological and Biochemical Responses of wheat (Triticum aestivum L.)” under Chromium stress. Name and type of organisation
providing education and training
Department of Botany, Government College University Faisalabad, Pakistan Level in national or international
classification
Doctorate (21 years of Education)
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Surname(s) First name(s)
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Dates
Oct, 2013 – Sep, 2015
Title of qualification awarded M.Phil. (Botany)
Principal subjects/occupational skills
covered
Botany / Antioxidant enzyme activity analysis, CAT, POD, and SOD Isoforms detection by Native- PAGE, Spectrophotometery, Flame-photometry.
Thesis Entitled “Microwave assisted modulation in colorant characteristics of Guava leaves and their use in textile Industry
Name and type of organisation
providing education and training
Department of Botany, Government College University Faisalabad, Pakistan Dates Sep, 2009 – Aug, 2011
Title of qualification awarded
Principal subjects/occupational skills
covered
M.Sc. (Botany)
Botany / Plant ions and heavy metal analysis from dry material, Atomic Absorption Spectrophotometery, Infra-Red Gas Analyzer, Chloride meter, Spectrophotometery and, Flame- photometry.
Thesis Entitled “Exogenous Application of Salicylic acid and Ascorbic acid to mitigate the impact of Sewage water on Allium cepa L.’
Name and type of organisation
providing education and training
Department of Botany, Government College University Faisalabad, Pakistan Level in national or international
classification
Masters (16 Years of Education)
Dates Sep, 2007 – Aug, 2009
Title of qualification awarded B.Sc.
Principal subjects/occupational skills
covered
Botany, Geography, Chemistry. (Two years course-work based degree) Name and type of organisation
providing education and training
University of Punjab, Lahore, Pakistan.
Level in national or international
classification
Bachelors (14 Years of Education)
Personal skills and
competences
Mother tongue(s) Punjabi, Urdu
Other language(s) English
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Surname(s) First name(s)
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Additional information
Research Publications
Conferences / Seminars Attended
References
1- Askari, S. H., Ashraf, M. A., Ali, S., Rizwan, M., & Rasheed, R. (2021). Menadione sodium bisulfite alleviated chromium effects on wheat by regulating oxidative defense, chromium speciation, and ion homeostasis. Environmental Science and Pollution Research, 28, 362**-*****.
2- Ashraf, M. A., Akbar, A., Askari, S. H., Iqbal, M., Rasheed, R., & Hussain, I.
(2018). Recent advances in abiotic stress tolerance of plants through chemical priming: an overview. Advances in seed priming, 51-79.
12th National and 3rd International Conference of Botany, held at Quaid-e-Azam University, Islamabad, Pakistan on 1-3rd September, 2012.
2nd International Conference of Plant Scientists” held at Department of Botany, GC University, Lahore, Pakistan, on February 22-24, 2011.
Dr. Syed Hammad Raza, Associate Professor, Department of Botany, Government College University,
Faisalabad, Pakistan. Off. Ph No. +923*********.
E-mail: ad0s9n@r.postjobfree.com
Dr. M. Arslan Ashraf, Associate Professor, Department of Botany, Government College University, Faisalabad, Pakistan. Ph No. +923*********. E-mail: ad0s9n@r.postjobfree.com
Prof. Dr. Rizwan Rasheed, Department of Botany, Government College University, Faisalabad, Pakistan. Ph No. +923*********.
E-mail: ad0s9n@r.postjobfree.com
Annexes References can be furnished on demand.
RESEARCH ARTICLE
Menadione sodium bisulfite alleviated chromium effects on wheat by regulating oxidative defense, chromium speciation, and ion homeostasis
Sajjad Hassan Askari1
& Muhammad Arslan Ashraf1
& Shafaqat Ali2,3
& Muhammad Rizwan2
& Rizwan Rasheed1
Received: 12 January 2021 /Accepted: 25 February 2021
# The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract
Menadione sodium bisulfite (MSB) is a crucial growth regulator mediating plant defense response. MSB-mediated regulation of defense mechanisms in wheat under chromium (Cr) toxicity has not been reported in the literature. Therefore, the present study was undertaken to appraise the efficacy of exogenous MSB on circumventing Cr phytotoxic effects on wheat. We also compared the effects of water-soluble MSB with that of water-insoluble menadiol diacetate (MD). The levels used in the present investigation for MSB and MD were 100 and 200 mg L
−1. Wheat plants grown in soil contaminated with 25 mg kg
−1 Cr in the form of K2Cr2O7
showed a notable reduction in growth, chlorophyll molecules, relative water contents, grain yield, total soluble sugars, phenolics, flavonoids, ascorbic acid, activities of antioxidant enzymes (SOD, POD, CAT), and uptake of essential nutrients (K, P, and Ca). Cr toxicity caused a noticeable accretion in total free amino acids, proline, malondialdehyde, H2O2,O2
•−
, relative membrane perme-
ability, methylglyoxal contents, activities of enzymes (lipoxygenase, glutathione-S-transferase, and ascorbate peroxidase), nitric oxide and H2S contents, glutathione and oxidized glutathione contents, total Cr contents, and Cr6+ and Cr3+ accumulation. MSB application significantly reduced lipid peroxidation, ROS overproduction, methylglyoxal levels, total Cr contents, and maintained higher Cr3+:Cr6+ ratio in aerial parts. Besides, Cr-mediated inhibition in essential nutrient uptake was significantly circumvented by exogenous MSB. Consequently, MSB enhanced wheat growth by lessening oxidative damage, total Cr contents in aerial parts, and strengthening antioxidant enzyme activities. MD was not effective in mediating defense responses in wheat under Cr toxicity. Keywords Nutrient acquisition . Secondary metabolism . Signaling molecules . Methylglyoxal . Glutathione . Superoxide radical . Heavy metals
Introduction
Plants growing under natural environmental conditions often face several abiotic stresses, including heavy metal stress, drought, salinity, temperature, and nutrients stress (Rasheed et al. 2018; Qureshi et al. 2020). These environmental hazards severely impede plant growth and development, leading to food insecurity, particularly in developing countries (Ashraf et al. 2018). Heavy metals toxicity has emerged as the primary concern for agricultural productivity over the last decade (Arif et al. 2019). Effluents from different industries and agricultur- al wastes that include pesticides, herbicides, and different kinds of fertilizers add to the soil metal toxicity (Neilson and Rajakaruna 2015; Seneviratne et al. 2019). Heavy metals are non-degradable that enables them to leave long-term effects on ecosystem health. The agrochemicals are rich in different heavy metals, entailing copper (Cu), arsenic (As), and cadmi- um (Cd), while industrially contaminated soils are rich in mer- cury (Hg), chromium (Cr), lead (Pb), and As (Wuana and Okieimen 2011). Plants grown in heavy metal–tainted soil manifest growth suppression, disturbances in important Responsible Editor: Gangrong Shi
* Muhammad Arslan Ashraf
ad0s9n@r.postjobfree.com; ad0s9n@r.postjobfree.com
1 Department of Botany, Government College University Faisalabad, Faisalabad 38000, Pakistan
2 Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, 38000, Pakistan
3 Department of Biological Sciences and Technology, China Medical University (CMU), Taichung 40402, Taiwan
Environmental Science and Pollution Research
https://doi.org/10.1007/s11356-021-13221-0
© Springer Nature Singapore Pte Ltd. 2018 51
A. Rakshit, H. B. Singh (eds.), Advances in Seed Priming, https://doi.org/10.1007/978-***-**-****-5_4
M. A. Ashraf · A. Akbar · S. H. Askari · M. Iqbal · R. Rasheed · I. Hussain Department of Botany, Government College University Faisalabad, Faisalabad, Pakistan Recent Advances in Abiotic Stress 4
Tolerance of Plants Through Chemical
Priming: An Overview
Muhammad Arslan Ashraf, Ali Akbar, Sajjad Hassan Askari, Muhammad Iqbal, Rizwan Rasheed, and Iqbal Hussain
Abstract
Plants under natural conditions often face multiple environmental constraints in terms of submergence, temperature extremes, salinity, and drought stress. Plant growth and productivity is negatively influenced by these abiotic stresses. Presently, a variety of approaches are being used to overcome abiotic stresses in plants. Recently, seed soaking with various priming agents has emerged as a promising strategy to induce tolerance in plants against abiotic stresses. In seed priming, seeds are treated with synthetic or natural compounds prior to germina- tion so as to initiate specific physiological state in plants. Seed priming could also be defined as physiological state which enables plants to more quickly respond to abiotic stresses. Plants raised from seeds treated with various priming agents tend to show greater abiotic stress tolerance over unprimed seeds. Induction of abiotic stress tolerance through priming is an intricate process that involves various metabolic events. Primed seeds show early and uniform germi- nation and seedling emergence. Seed priming enables plants to survive adverse environmental conditions and gives appropriate yield. In this book chapter, we have discussed a wide range of chemical which are extensively being used for seed priming.
Keyword
Seed preconditioning · Chemical priming · Hormonal priming · Redox priming · Hydropriming
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