Review
Plant Sciences
Sameer H. Qari, Muhammad Umair Hassan, Muhammad Umer Chattha, Athar Mahmood, Maria Naqve, Muhammad Nawaz, Lorenzo Barbanti, Maryam A. Alahdal, Maha Aljabri
Summary: Cold stress is a major constraint for plant growth and development. The application of melatonin, a critical bio-stimulant, has been found to improve plant performance under cold stress by maintaining membrane integrity, water uptake, photosynthetic efficiency, and antioxidant activities.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Waseem Ashfaq, Sigfredo Fuentes, Graham Brodie, Dorin Gupta
Summary: The study concludes that pre-sowing silicon treatment can significantly improve the morpho-physiological and biochemical characteristics of wheat under drought and heat stress. Silicon treatment also enhances the abiotic stress tolerance of wheat by increasing antioxidant activity and osmolyte concentration, and improving water stress indices.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Pavel Kerchev, Frank Van Breusegem
Summary: Reactive oxygen species (ROS), once considered harmful metabolic byproducts, are now seen as integral to cellular programs, activating signaling pathways that regulate plant growth, development, and defense. Adverse environmental conditions can lead to excessive ROS levels, causing oxidative stress and negative impacts on cellular components. Research efforts have focused on enhancing antioxidant mechanisms to improve oxidative stress resilience in both model and crop species.
Article
Plant Sciences
Alok Ranjan, Ragini Sinha, Meenu Bala, Ashwani Pareek, Sneh L. Singla-Pareek, Anil Kumar Singh
Summary: Silicon is a beneficial macronutrient for plants that can mitigate abiotic and biotic stresses by regulating physiological, biochemical, and molecular mechanisms. The uptake and transport of silicon in plants are facilitated by specific transporters, leading to enhanced production of antioxidants and gene expression under stress conditions, ultimately improving stress tolerance in plants.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Amirhossein Kazemzadeh Haghighi, Maryam Rezayian, Vahid Niknam, Mohammad Reza Ganjali, Masoud Mirmasoumi
Summary: This study aimed to investigate the positive and negative impacts of cerium and samarium on two cultivars of wheat plants, as well as the associated stress markers and antioxidant enzymes. The results showed that cerium and samarium had a hormesis effect on the growth of wheat plants, but also induced oxidative stress. The sensitivity to samarium and cerium varied between the two cultivars, with samarium affecting the Arta cultivar more and cerium affecting the Baharan cultivar more. Furthermore, the study found that the accumulation of proline in wheat plants was influenced by the dosage of cerium and samarium, and that these metals blocked the enzymatic antioxidant system in wheat.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Rabia Naz, Sana Batool, Muhammad Shahid, Rumana Keyani, Humaira Yasmin, Asia Nosheen, Muhammad Nadeem Hassan, Saqib Mumtaz, Manzer Hussain Siddiqui
Summary: This study found that concurrent application of H2S and Si can significantly improve wheat growth, reduce disease incidence, and enhance tolerance and defense mechanisms under drought and pathogen (P. triticina) stress conditions.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Satish Kumar Sanwal, Hari Kesh, Arvind Kumar, Bhanu Kumar Dubey, Anil Khar, Youssef Rouphael, Pradeep Kumar
Summary: This study aimed to identify salt-tolerant onion genotypes by studying the physiological and biochemical mechanisms under salt stress. The results showed differences in growth and yield reduction among different onion varieties under salt stress. Salt-tolerant varieties exhibited higher physiological traits and better antioxidant capacity, while salt-sensitive varieties showed more membrane injury and higher salt accumulation.
Article
Plant Sciences
Hadi Pirasteh-Anosheh, Gholamhassan Ranjbar, Mirza Hasanuzzaman, Kanika Khanna, Renu Bhardwaj, Parvaiz Ahmad
Summary: The study found that salinity decreased plant yield components and altered ion concentrations, but foliar application of salicylic acid induced plant yield components and improved salt tolerance in wheat and barley plants. Optimum concentrations of salicylic acid significantly increased grain and biological yield in both non-saline and saline conditions.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Review
Biochemistry & Molecular Biology
Priya Yadav, Mohammad Wahid Ansari, Babeeta C. Kaula, Yalaga Rama Rao, Moaed Al Meselmani, Zahid Hameed Siddiqui, Shashi Bhushan Brajendra, Shashi Bhushan Kumar, Varsha Rani, Abhijit Sarkar, Randeep Rakwal, Sarvajeet Singh Gill, Narendra Tuteja
Summary: The tomato, known for its anti-oxidative and anti-cancer properties, is an important cash crop that brings various health benefits to humans. However, environmental stresses, particularly abiotic stresses, have a negative impact on tomato growth and productivity. This review examines how salinity stress affects tomato growth and development through toxicity by ethylene and cyanide, as well as ionic, oxidative, and osmotic stresses. The authors highlight the role of salicylic acid, compatible solutes, polyamines, and ethylene inhibitors in regulating ethylene and cyanide metabolism in response to salinity stress. They also discuss the cooperation between ethylene, salicylic acid, and polyamines with mitochondrial alternating oxidase, salt overly sensitive pathways, and the antioxidants system in enhancing salinity stress resistance in tomatoes.
Article
Biochemistry & Molecular Biology
Cristiano Soares, Pedro Nadais, Bruno Sousa, Edgar Pinto, Isabel M. P. L. V. O. Ferreira, Ruth Pereira, Fernanda Fidalgo
Summary: The foliar application of silicon, either as bulk or nano forms, was found to enhance Solanum lycopersicum L. tolerance to glyphosate by reducing oxidative stress and upregulating antioxidant enzymes. Both sources of silicon showed potential in alleviating glyphosate-induced toxicity, with no significant differences in efficacy observed.
Article
Plant Sciences
Zornitsa Katerova, Iskren Sergiev, Dessislava Todorova, Elena Shopova, Ljudmila Dimitrova, Liliana Brankova
Summary: Waterlogging impairs crop development and wheat is sensitive to it. Selective herbicide Serrate (Syngenta) did not affect wheat phenotype but waterlogging caused yellowing and wilting. The combination of herbicide and waterlogging increased stress markers and antioxidant activity in wheat compared to waterlogging alone.
Article
Horticulture
Golam Jalal Ahammed, Xin Li
Summary: Dopamine, a natural amine compound, has strong antioxidant capacity and can enhance plant tolerance to abiotic stressors. It promotes photosynthetic pigment concentrations, CO2 assimilation, and plant growth. Additionally, dopamine alleviates oxidative stress and aids nutrient acquisition by regulating ion transporters. It also activates xenobiotic detoxification pathways under organic pollutant stress.
SCIENTIA HORTICULTURAE
(2023)
Article
Engineering, Environmental
Jozef Kovacik, Slawomir Dresler, Maciej Strzemski, Ireneusz Sowa, Petr Babula, Magdalena Wojciak-Kosior
Summary: The study found that in the medicinal plant Hypericum perforatum L., strontium can be mitigated by organic nitrogen forms, and even have a stimulatory effect. Additionally, the effects of strontium on the plant mainly manifest in changes in primary and secondary metabolites, as well as in mineral elements.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biology
Mohamed M. Ali, Kaouthar Jeddi, Mohamed S. Attia, Salah M. Elsayed, Mohammad Yusuf, Mahmoud S. Osman, Mona H. Soliman, Kamel Hessini
Summary: The study investigated the ameliorative capabilities of Wuxal amino under salt stress in tomato plants through adaptive mechanisms and antioxidant potential. Results showed that salt stress reduced growth parameters and photosynthetic pigments while increasing certain metabolites and antioxidant enzymes. Application of Wuxal amino improved morphological traits, photosynthetic pigments, and antioxidant enzymes activity in salt-stressed plants, reducing the deleterious impact of salinity.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Forestry
Wenguang Shi, Jing Li, Donxu Kan, Wenjian Yu, Xin Chen, Yuhong Zhang, Chaofeng Ma, Shurong Deng, Jing Zhou, Payam Fayyaz, Zhi-Bin Luo
Summary: This study investigated the physiological processes modulating lead tolerance capacities in two contrasting poplar species. The results showed differences in lead tolerance capacities, nutrient concentrations, organic acid accumulation, and phytohormone regulation between Populus x canescens and Populus nigra. Sulfur metabolism, organic acid accumulation, and phytohormone regulation were identified as key physiological processes modulating the different lead tolerance capacities between the two poplar species.
