Article
Chemistry, Applied
Miaomiao Yao, Wanying Ge, Qian Zhou, Xin Zhou, Manli Luo, Yingbo Zhao, Baodong Wei, Shujuan Ji
Summary: The study showed that exogenous glutathione treatment can alleviate chilling injury in pepper fruits during cold storage by triggering the AsA-GSH cycle and improving antioxidant capacity.
Article
Food Science & Technology
Jirarat Kantakhoo, Yoshihiro Imahori
Summary: The study found that treating red sweet pepper fruit with hot water for 1 minute can reduce chilling injury, electrolyte leakage, and weight loss. This treatment activates the ascorbate-glutathione cycle by enhancing antioxidant levels and the activity of related enzymes, ultimately increasing the fruit's tolerance to cold damage.
Article
Biochemistry & Molecular Biology
Dongxia Ding, Jing Li, Jianming Xie, Nenghui Li, Emily Patience Bakpa, Kangning Han, Yan Yang, Cheng Wang
Summary: Low temperature and low light conditions have negative effects on the yield and quality of peppers. However, this study found that exogenous zeaxanthin (Z) can alleviate the inhibition of photosynthesis and oxidative stress caused by these conditions. The application of Z improved plant growth and photosynthesis, increased antioxidant enzyme activity, and enhanced the accumulation of antioxidant components, resulting in reduced accumulation of reactive oxygen species (ROS).
CURRENT ISSUES IN MOLECULAR BIOLOGY
(2022)
Article
Agronomy
Huiping Wang, Zeci Liu, Jing Li, Shilei Luo, Jing Zhang, Jianming Xie
Summary: This study investigates the roles of 5-aminolevulinic acid (ALA) and hydrogen sulfide (H2S) in regulating antioxidant activity and mitigating chilling stress in pepper seedlings. The results show that ALA and/or H2S enhance the activities of antioxidant enzymes and promote the ascorbate-glutathione cycle, thereby reducing the inhibitory effects of chilling stress on pepper seedling growth. The combination of ALA and H2S has a better effect compared to using them alone.
Article
Plant Sciences
S. Samanta, A. Banerjee, A. Roychoudhury
Summary: Melatonin acts as a protective agent in plant defence against multiple abiotic stresses, showing promising results in enhancing antioxidant capacity in rice genotypes under arsenate stress. The study reveals that melatonin treatment effectively reduces oxidative damage, enhances antioxidant activity, and regulates antioxidative enzymes in contrasting rice genotypes, providing important insights into improving As tolerance and crop productivity.
Article
Plant Sciences
Amer Morsy Abdelaziz, Mohamed S. Attia, Marwa S. Salem, Dina A. Refaay, Wardah A. Alhoqail, Hoda H. Senousy
Summary: Research has shown that using cyanobacteria, such as Arthrospira platensis, Desmonostoc muscorum, and Anabaena oryzae, through foliar spraying is an effective approach to induce immunity against Fusarium wilt in Capsicum annuum L. These cyanobacterial extracts significantly reduced the risk of infection and improved plant growth, metabolic characteristics, and phenol levels. The application of cyanobacteria also enhanced the activity of antioxidant enzymes and altered the endogenous hormone content in the infected plants.
Article
Biochemistry & Molecular Biology
Nidhi Kandhol, Padmaja Rai, Sangeeta Pandey, Samiksha Singh, Shivesh Sharma, Francisco J. Corpas, Vijay Pratap Singh, Durgesh Kumar Tripathi
Summary: This study investigates the interaction between zinc and cadmium in rice roots and how zinc can protect plants from cadmium stress. The results show that zinc can reduce cadmium accumulation in roots and increase its own accumulation, leading to reduced oxidative stress through modulation of gene expression. These findings are important for improving rice varieties to maintain crop productivity in cadmium-contaminated areas.
Article
Environmental Sciences
Cengiz Kaya, Ferhat Ugurlar, Muhammed Ashraf, Mohamed A. El -Sheikh, Andrzej Bajguz, Parvaiz Ahmad
Summary: The study observed that hydrogen sulphide (H2S) and nitric oxide (NO) can improve plant growth inhibition and oxidative stress caused by chromium stress in Pepper plants. Hydrogen sulphide and nitric oxide reduce the toxicity of chromium by modulating the AsA-GSH cycle and enhance the plant's growth capacity.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biochemistry & Molecular Biology
Young-Saeng Kim, Seong-Im Park, Jin-Ju Kim, Sun-Young Shin, Sang-Soo Kwak, Choon-Hwan Lee, Hyang-Mi Park, Yul-Ho Kim, Il-Sup Kim, Ho-Sung Yoon
Summary: Abiotic stress can induce the generation of reactive oxygen species (ROS) in plants, leading to oxidative damage. In this study, we developed salt-tolerant transgenic rice plants that overexpressed the OsDHAR1 gene under the control of a stress-inducible promoter. These transgenic plants showed improved environmental adaptability and agronomic traits, including root development and grain yield. Knockdown of the OsDHAR2 gene in plants resulted in sensitivity to salt stress and reduced biomass and grain yield. Microarray analysis revealed the upregulation of genes related to cell growth, plant growth, senescence, and stress response in the transgenic plants. Our findings provide insights into the physiological processes underlying environmental adaptability and have implications for crop breeding and climate change adaptation.
Article
Plant Sciences
Samta Gupta, Chandra Shekhar Seth
Summary: The study showed that exogenous application of SA not only promoted plant growth under Cr stress, but also restored Cr-induced disturbances in plant physiology. By enhancing the plant's antioxidant system, SA application ameliorated the oxidative stress caused by Cr in tomato plants.
PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS
(2021)
Article
Plant Sciences
Ha-il Jung, Tae-Gu Lee, Jinwook Lee, Mi-Jin Chae, Eun-Jin Lee, Myung-Sook Kim, Goo-Bok Jung, Amoakwah Emmanuel, Sangho Jeon, Bok-Rye Lee
Summary: The study demonstrated that exogenously applied GSH can mitigate the phytotoxicity caused by Cd stress in oilseed rape plants by enhancing antioxidant defense and redox regulation, as well as rebalancing hormone levels, leading to improved Cd uptake and accumulation. This suggests that GSH can potentially be used for plant remediation in Cd-polluted soil.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Jing Li, Jianming Xie, Jihua Yu, Jian Lyv, Junfeng Zhang, Dongxia Ding, Nenghui Li, Jing Zhang, Emily Patience Bakpa, Yan Yang, Tianhang Niu, Feng Gao
Summary: Melatonin application in pepper seedlings under low-light stress demonstrated potential mitigating effects by promoting root growth, improving antioxidative defense system, ascorbate-glutathione cycle, and osmotic adjustment.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Neha, Twinkle, Sumanta Mohapatra, Geetika Sirhindi, Vivek Dogra
Summary: Environmental stresses pose a major challenge for plant researchers to fulfill increasing food demand. Researchers are trying to generate high-yielding and stress-tolerant or resistant varieties using classical genetics and modern gene-editing tools; however, both approaches have limitations. Chemical treatments emerged as an alternative to improve yield and impart stress resilience. Brassinosteroids (BRs) are a group of phytohormones that regulate various biological processes, including stress management. With foliar spray methods, BR treatments showed promising results but are not economically feasible. We hypothesize that priming of seeds, which requires lesser amounts of BRs, could be equally effective in promoting growth and stress tolerance. Owing to this notion, we analyzed the impact of priming seeds with selected BRs, namely, 24-epibrassinolide (EBL) and 28-homobrassinolide (HBL), in Brassica juncea under normal and heat shock stress conditions. Seeds primed with BRs and grown until seedlings stage at normal conditions (20?) were subjected to a heat shock (35?) for a few hours, relating to what plants experience in natural conditions. Heat shock reduced the growth and biomass with an increased accumulation of reactive oxygen species. As anticipated, BRs treatments significantly improved the growth and physiological parameters with an enhanced antioxidant defense under both conditions. Transcriptional analyses revealed that BRs concomitantly induce growth and oxidative stress-responsive gene expression via the canonical BR-signaling pathway. Transfer of unstressed and heat-shock-treated seedlings to field conditions demonstrated the long-term effectivity of BR-priming. Our results showed seed priming with BRs could improve growth and resilience against heat shock; hence, it appears to be a viable strategy to enhance crop yields and stress tolerance.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Biology
Dilara Maslennikova, Karina Nasyrova, Olga Chubukova, Ekaterina Akimova, Andrey Baymiev, Darya Blagova, Almaz Ibragimov, Oksana Lastochkina
Summary: The study demonstrated that pre-sowing seed treatment with Rhizobium leguminosarum strains from different leguminous plants could promote wheat plant growth and improve its stress tolerance, with strain Thy2 showing significant enhancement in seed germination and growth parameters under normal conditions. Under Cd stress, Thy2 alleviated the negative effects of Cd on wheat growth and exhibited a protective effect on the antioxidant system.
Article
Plant Sciences
Yuan Wen, Lingyan Zha, Wenke Liu
Summary: The study revealed that under different dark period light intensities of continuous light, hydroponic lettuce biomass, ascorbate contents, metabolism-related enzyme activities, chlorophyll fluorescence parameters, and H2O2 contents were regulated.
Article
Plant Sciences
Cengiz Kaya
Summary: The study revealed that nitrate reductase (NR) plays a significant role in salicylic acid (SA)-enhanced water stress tolerance in pepper plants, and the synergistic effect of nitrate reductase and nitric oxide (NO) has positive impacts on plant resilience under drought conditions.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Cengiz Kaya, Ferhat Ugurlar, Muhammad Ashraf, Ahmed Noureldeen, Hadeer Darwish, Parvaiz Ahmad
Summary: The main findings of the study show that exogenous application of methyl jasmonate and nitric oxide-donor sodium nitroprusside alleviated the cadmium-induced adverse effects on growth of wheat plants by modulating key physiological processes and up-regulating enzymatic antioxidants and the ascorbic acid-glutathione cycle-related enzymes.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Environmental Sciences
Cengiz Kaya, Muhammad Ashraf
Summary: The study aimed to evaluate the combined application of hydrogen sulfide and silicon on improving tolerance of tomato plants to arsenic stress. The results showed that arsenic stress inhibited plant growth and key biochemical processes, while the joint supplementation of hydrogen sulfide and silicon enhanced antioxidant biomolecules and reduced arsenic content, indicating a collaborative role of both molecules in improving tolerance to arsenic toxicity in tomato plants.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Cengiz Kaya, Ali Sarioglu, Muhammad Ashraf, Mohammed Nasser Alyemeni, Parvaiz Ahmad
Summary: The joint application of melatonin and salicylic acid improved the tolerance of pepper plants to arsenic toxicity by enhancing nitrogen metabolism and reducing tissue arsenic content.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Cengiz Kaya, Ferhat Ugurlar, Muhammed Ashraf, Mohammed Nasser Alyemeni, Andrzej Bajguz, Parvaiz Ahmad
Summary: Melatonin (MT) and hydrogen sulphide (H2S) can enhance the tolerance of plants to arsenic toxicity, with MT improving plant growth and antioxidant enzyme activity, and H2S playing a key role in MT-induced tolerance enhancement.
Article
Plant Sciences
Cengiz Kaya, Ferhat Ugurlar, Muhammed Ashraf, Parvaiz Ahmad
Summary: Salicylic acid (SA) is a potential plant growth regulator (PGR) that regulates plant growth and development by triggering physiological and metabolic processes. It plays a crucial role in plant defense mechanisms against environmental stimuli. However, it is not fully understood how different concentrations of SA affect plant growth under stressful conditions and its interactions with other PGRs and signaling molecules within the plant body. This review discusses the crosstalk between SA and other key PGRs and signaling components in plants exposed to environmental cues, as well as the role of exogenously applied SA in regulating growth and enhancing the oxidative defense system under abiotic stresses.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Plant Sciences
Cengiz Kaya, Ferhat Ugurlar, Muhammed Ashraf, Pravej Alam, Parvaiz Ahmad
Summary: The study investigated the involvement of nitric oxide (NO) in wheat plant tolerance to salinity stress (SS) induced by hydrogen sulphide (H2S) through modifying the ascorbate-glutathione (AsA-GSH) cycle. Plants subjected to SS were treated with either 0.2 mM sodium hydrosulfide (NaHS; H2S donor) or NaHS plus 0.1 mM sodium nitroprusside (SNP; a NO donor). Salinity stress resulted in negative effects on plant growth, leaf water status, leaf K+, and glyoxalase II (gly II), while causing an increase in proline content, leaf Na+ content, oxidative stress, methylglyoxal (MG), glyoxalase I (gly I), and the activities of superoxide dismutase, catalase, and peroxidase, as well as the levels of endogenous NO and H2S. NaHS supplementation improved plant development, reduced leaf Na+ content and oxidative stress, and altered leaf water status, leaf K+, and the levels of enzymes involved in AsA-GSH, H2S, and NO. The positive effects of NaHS on these traits in the SS-plants were enhanced by SNP supplementation. Moreover, the addition of 0.1 mM cPTIO, a scavenger of NO, counteracted the beneficial effects of NaHS by lowering NO levels. The restoration of beneficial effects by SNP and NaHS + cPTIO together, by increasing NO content, suggested the importance of NO in SS tolerance in wheat plants induced by H2S through the activation of enzymes connected to the AsA-GSH cycle.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Plant Sciences
Cengiz Kaya, Sergey Shabala
Summary: This study investigated the potential of sodium hydrosulfide (NaHS) to improve drought tolerance in pepper plants by upregulating nitrogen metabolism-related enzymes. It provides insights into the specific mechanism by which hydrogen sulfide (H2S) mediates plant tolerance to abiotic stress.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Javaid Akhter Bhat, Farwa Basit, Mohammed Nasser Alyemeni, Sheikh Mansoor, Cengiz Kaya, Parvaiz Ahmad
Summary: It has been discovered that gibberellic acid (GA) can enhance soybean tolerance against nickel (Ni) stress by reducing Ni uptake and distribution, as well as increasing antioxidant enzyme and glyoxalase activities. GA also regulates gene expression to sequester excessive Ni in vacuoles and efflux Ni out of cells, reducing Ni translocation towards shoots.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Review
Plant Sciences
Cengiz Kaya, M. Ashraf
Summary: This article reviews recent developments in the field of foliar fertilization for increased salt tolerance, discussing the processes, problems, and commercial fertilizers associated with this technique. It highlights the need for further research to enhance nutrient absorption efficiency and administration strategies.
CRITICAL REVIEWS IN PLANT SCIENCES
(2023)
Article
Environmental Sciences
Cengiz Kaya, Muhammed Ashraf, Mohammed Nasser Alyemeni, Jorg Rinklebe, Parvaiz Ahmad
Summary: Research has found that the interaction between Aminolevulinic acid (ALA) and heme can enhance the antioxidant capacity of plants exposed to arsenic. Applying ALA to pepper plants increased the content of chlorophyll and heme, enhanced the activity of antioxidant enzymes, and promoted plant growth.
ENVIRONMENTAL POLLUTION
(2023)
Review
Agronomy
Cengiz Kaya
Summary: This review explores the proteomic and metabolomic changes in plants triggered by drought stress and their interactions with microbiota. Microbial mediation plays a crucial role in hormone signaling, proteomic, and metabolomic dynamics during drought adaptation. Understanding these complex interactions provides insights into the molecular basis of a plant's ability to endure water scarcity and offers opportunities to enhance drought tolerance through microbiota-mediated mechanisms.
FOOD AND ENERGY SECURITY
(2023)
Article
Plant Sciences
Cengiz Kaya, Sergey Shabala
Summary: This study investigated the mechanisms by which melatonin (MT) improves drought tolerance in pepper plants. The plants were treated with a foliar spray of 0.1 mM MT and grown under 80% and 40% field capacity for 3 days. Drought stress significantly decreased plant dry weight, water content, PSII efficiency, chlorophyll, protein, and nitrogen content, while increasing oxidative stress markers and enzyme activities. MT pre-treatment alleviated oxidative stress and improved nitrogen metabolism by activating various enzymes. It also reduced nitrogen content and enhanced plant growth and photosynthesis.
FUNCTIONAL PLANT BIOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Cengiz Kaya, Ferhat Ugurlar, Ioannis-Dimosthenis S. Adamakis
Summary: This comprehensive review explores the molecular interactions involved in plant-PGPM partnerships during drought stress and discusses the challenges and prospects associated with optimizing and deploying PGPMs to mitigate drought effects in agriculture.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agriculture, Multidisciplinary
Irfan OZBERK, Fethiye OZBERK, Cengiz KAYA, I. Halil BATMAZ, A. Ayse SOLMAZ, Zeki CENGIZER, Meral YILDIRIM, Merve GOK
Summary: Through surveys on 50 farmers in the dryland conditions of Sanliurfa, it was found that farmers adopted new high-yielding varieties, shifted seeding time, had sufficient agricultural machinery, managed disease and pests effectively, and achieved higher barley yield compared to wheat. However, climatological factors, high fertilizer input prices, and low marketing prices were identified as major constraints for cereal cultivation.
KSU TARIM VE DOGA DERGISI-KSU JOURNAL OF AGRICULTURE AND NATURE
(2022)
