Article
Plant Sciences
Neidiquele M. Silveira, Rafael Ribeiro, Sabrina F. N. de Morais, Sarah C. R. de Souza, Simone F. da Silva, Amedea B. Seabra, John T. Hancock, Eduardo C. Machado
Summary: The study demonstrated that spraying arginine improved sugarcane plants' tolerance to water deficit by enhancing leaf gas exchange and root antioxidative protection. While arginine prevented proline accumulation induced by water deficit, its effects on nitric oxide and polyamines levels were slight.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Oussama Kharbech, Marouane Ben Massoud, Abdelilah Chaoui, Luis Alejandro Jose Mur, Wahbi Djebali
Summary: The use of exogenous compounds such as 'gasotransmitter' molecules is an established strategy to improve crop tolerance to environmental stresses. In this study, it was found that exogenous NO can mitigate Cr-induced damage and confer seedling tolerance to Cr through suppression of NADPH oxidase activity and increased GSNO contents.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Plant Sciences
Sadaf Choudhary, Kaiser Iqbal Wani, M. Naeem, M. Masroor A. Khan, Tariq Aftab
Summary: Salinity stress is a major obstacle that affects crop productivity, and plants have evolved physiological and molecular mechanisms to cope with it. Polyamines play a significant role in salt tolerance mechanisms and adaptation strategies, while ion pumps and osmolytes provide protective functions during salt stress.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Environmental Sciences
Min Zhong, Lingqi Yue, Hongyi Qin, Guohu Wang, Liwen Xiao, Qinqin Cheng, Bingfu Lei, Riming Huang, Xian Yang, Yunyan Kang
Summary: In highly intensive greenhouse vegetable production, excessive fertilization leads to soil acidification, which increases cadmium concentrations in vegetables and poses environmental and health risks. The study focuses on the role of transglutaminases (TGases) in Cd tolerance and found that TGase activity and transcript level are upregulated by Cd, leading to an increase in endogenous bound polyamines (PAs) and nitric oxide (NO). TGase-mediated Cd tolerance relies on the synthesis of bound PAs and NO, which enhance thiol and phytochelatins levels, promote Cd accumulation in the cell wall, and regulate Cd uptake and transport genes.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Review
Multidisciplinary Sciences
Disha Dasgupta, Anamika Paul, Krishnendu Acharya, Tatiana Minkina, Saglara Mandzhieva, Andrey Vladimirovich Gorovtsov, Nilanjan Chakraborty, Chetan Keswani
Summary: Bio-inoculation involves the association of plants with beneficial microorganisms, specifically Plant Growth Promoting Rhizobacteria (PGPR), which can directly or indirectly help plants with root development, nitrogen fixation, stress tolerance, and overall soil health improvement. The use of PGPR as biofertilizers and for bioremediation techniques can reduce chemical dependency in agriculture. This review focuses on understanding the convergence strategies of signaling molecules and the ambiguities of signaling activities in plants due to their interaction with PGPR under environmental stressed conditions.
Article
Engineering, Environmental
Yun Wang, Bingfang Luo, Siyu Zhang, Yaxin Zhu, Shaoting Du
Summary: This study reveals that nitrogen supply affects plant resistance to cadmium toxicity. The non-symbiotic hemoglobin gene Hb1 plays an important role in scavenging nitric oxide (NO) in plants. Plants with high AHb1 expression have higher tolerance to cadmium, while plants with silenced AHb1 expression are less affected by cadmium.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Biochemistry & Molecular Biology
Yue Zhang, Ruirui Wang, Xiaodong Wang, Caihong Zhao, Hailong Shen, Ling Yang
Summary: Seed germination plays a significant role in plant development and crop yield. Recent studies have found that nitric oxide (NO) acts as both a nitrogen source during seed development and a participant in stress responses to salt, drought, and high temperature. NO influences seed germination by integrating various signaling pathways. However, the precise network mechanism of NO's regulation of seed germination is still unclear due to the instability of NO gas activity.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Mohammad Suhel, Tajammul Husain, Aparna Pandey, Samiksha Singh, Nawal Kishore Dubey, Sheo Mohan Prasad, Vijay Pratap Singh
Summary: This article reviews the biosynthesis of GABA in plants and its accumulation and role under stressed conditions. GABA regulates multiple physiological processes and interacts with ROS, nitric oxide, Ca+2 ions, phytohormones, and polyamines in stress acclimation.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Review
Plant Sciences
Manuel A. Matamoros, Manuel Becana
Summary: Legumes can reduce the demand for nitrogen fertilizers and contribute to sustainable agriculture by fixing nitrogen in symbiotic root nodules. However, global changes may increase exposure to abiotic stresses and negatively impact crop production. The complex regulation of whole plant physiology and nitrogen fixation in legumes under abiotic stress involves redox-based protein post-translational modifications, which play critical roles in plant acclimation and stress tolerance.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Biochemistry & Molecular Biology
Natalia Napieraj, Malgorzata Janicka, Beata Augustyniak, Malgorzata Reda
Summary: This study reveals the important regulatory role of exogenous putrescine (Put) in nitric oxide (NO) production in cucumber roots under salt stress conditions. Put reduces NO levels in short-term salt stress, but increases NO levels in long-term salt stress. Additionally, Put modulates NO biosynthesis pathways and affects nitrate reductase (NR) activity to regulate salt stress response.
Review
Biology
Zoltan Marton Kohler, Agnes Szepesi
Summary: L-aminoguanidine (AG) is widely used as an inhibitor in studying plant abiotic stress responses, but its exact mode of action is not well understood. It has been used as a specific diamine oxidase inhibitor and for reducing nitric oxide production. Recent studies suggest its antiglycation effect, but this remains unclear in plants. This review provides a summary of current knowledge about the different targets of AG in plants and recommends using it as a modulator of polyamine-related mechanisms.
Review
Biochemistry & Molecular Biology
Yuting Meng, Huaikang Jing, Jing Huang, Renfang Shen, Xiaofang Zhu
Summary: Nitric oxide (NO) is a crucial signaling molecule in plants, playing roles in regulating plant growth and development, and responding to stress. Cadmium (Cd) pollution is a widespread environmental hazard that inhibits plant growth and threatens human health. Plants have evolved mechanisms to cope with Cd stress, and NO is known to be involved in these responses. However, the mechanisms by which Cd stress affects the accumulation of endogenous NO in plants and the role of exogenous NO in plant responses to Cd stress remain unclear.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Plant Sciences
P. Mathur, S. Roy, M. Nasir Khan, S. Mukherjee
Summary: This review discusses the important role of hydrogen sulphide (H2S) in root development, stress alleviation, and signal transduction in plants. H2S regulates root development, lateral root formation, and stress tolerance, and interacts with signaling molecules like nitric oxide and ethylene.
Review
Plant Sciences
Nkulu Rolly Kabange, Bong-Gyu Mun, So-Myeong Lee, Youngho Kwon, Dasol Lee, Geun-Mo Lee, Byung-Wook Yun, Jong-Hee Lee
Summary: The molecule nitric oxide (NO) plays a crucial role in plant physiology and biological processes, especially in response to abiotic and biotic stresses. It interacts with various signaling networks to regulate stress tolerance in plants. Greenhouse gases (GHGs), including carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone (O3), have been found to trigger similar signaling pathways in plants as commonly studied abiotic stresses. This review focuses on the role of NO signaling and its interaction with calcium and hormonal signaling pathways under elevated GHGs levels, and explores the mechanisms underlying GHGs-induced stress in plants.
FRONTIERS IN PLANT SCIENCE
(2022)
Review
Plant Sciences
Zsuzsanna Kolbert, Reka Szollosi, Gabor Feigl, Zoltan Konya, Andrea Ronavari
Summary: Plant nanobiology research provides a scientific basis for the agricultural use of nanoparticles, showing that nanomaterials can stimulate endogenous NO synthesis and signaling in plants and also have stress-alleviating effects. Evaluating the effects of NO-releasing NPs on plants has recently begun, and the development of an NP-based nanosensor for NO detection in plants offers new perspectives for basic research and plant health evaluation in agriculture.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Environmental Sciences
Analia Vazquez, Laura Recalde, Andrea Cabrera, Maria Daniela Groppa, Maria Patricia Benavides
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2020)
Article
Biochemistry & Molecular Biology
Andrea A. E. Mendez, Irene C. Mangialavori, Andrea Cabrera, Maria P. Benavides, Jorge M. Vazquez-Ramos, Susana M. Gallego
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS
(2020)
Article
Biotechnology & Applied Microbiology
Patricia Laura Marconi, Andrea Trentini, Myriam Zawoznik, Carlos Nadra, Juan Manuel Mercade, Juan Gabriel Sanchez Novoa, Daniel Orozco, Maria Daniela Groppa
Article
Ecology
Maria De Las Mercedes Mufarrege, Gisela Alfonsina Di Luca, Hernan Ricardo Hadad, Maria Alejandra Maine
Summary: This study found that adding nutrients can significantly increase the relative growth rate of aquatic plants in high metal concentration solutions, and promote metal removal. Roots are the main accumulation site of metals in tissues, while leaves mainly perform photosynthesis.
ECOLOGICAL ENGINEERING
(2021)
Article
Environmental Sciences
Maria Florencia Iannone, Maria Daniela Groppa, Myriam Sara Zawoznik, Diego Fernando Coral, Marcela Beatriz Fernandez van Raap, Maria Patricia Benavides
Summary: The study indicated that Fe3O4-NPs were taken up by soybean and alfalfa but scarcely translocated to shoots. Addition of Fe3O4-NPs resulted in increased root weight, root surface, and shoot weight, as well as enhanced chlorophyll content. Fe3O4-NPs affected the activity of antioxidant enzyme catalase in roots and shoots, but did not cause oxidative stress or cell damage in the legumes. These nanoparticles behaved as plant growth stimulators rather than exhibiting toxicity to soybean and alfalfa.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Plant Sciences
Nabila M. Gomez Mansur, Liliana B. Pena, Adrian E. Bossio, Dalia M. Lewi, Ailin Y. Beznec, Eduardo Blumwald, Vicent Arbona, Aurelio Gomez-Cadenas, Maria P. Benavides, Susana M. Gallego
Summary: The study analyzed the metabolic changes associated with root growth restriction caused by cadmium in wheat seedlings. The IPT wheat line showed lesser reduction in root elongation compared to the WT when treated with Cd, indicating increased homeostatic range to cope with Cd stress. Hormonal imbalance at the root apex level and activation of phenolic secondary metabolism could enhance antioxidant defenses and contribute to cell wall reinforcement to deal with Cd toxicity.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Biochemistry & Molecular Biology
Analia Vazquez, Myriam Zawoznik, Maria Patricia Benavides, Maria Daniela Groppa
Summary: The study demonstrated that inoculation with the plant growth-promoting rhizobacteria Azospirillum brasilense strain Az39 can alleviate Cd2+ stress in wheat seedlings, promoting plant growth and inhibiting oxidative stress. Additionally, inoculation favored ion homeostasis in the roots of metal-exposed plants.
Article
Plant Sciences
Maria Daniela Groppa, Myriam Sara Zawoznik, Maria Patricia Benavides, Maria Florencia Iannone
Summary: Citric acid-coated magnetite nanoparticles showed promising results in promoting the growth of soybean and alfalfa seedlings, enhancing the symbiotic relationship between microorganisms and plants, increasing nodule formation and biomass, and improving chlorophyll and total nitrogen content.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Engineering, Environmental
Cintya Gordon-Falconi, Maria Florencia Iannone, Myriam Sara Zawoznik, Luis Cumbal, Alexis Debut, Maria Daniela Groppa
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Environmental Sciences
Emanuel Nocetti, Maria Alejandra Maine, Hernan Ricardo Hadad, Maria de Las Mercedes Mufarrege, Gisela Alfonsina Di Luca, Gabriela Cristina Sanchez
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)