Article
Biochemistry & Molecular Biology
Angelo Del Mondo, Annamaria Vinaccia, Luigi Pistelli, Christophe Brunet, Clementina Sansone
Summary: Phytohormones are secondary metabolites with diverse chemical structures, which include auxins, cytokinins, gibberellins, and brassinosteroids. They play active roles in plant growth and defense, and some phytohormones have potential benefits for human health protection. By analyzing the interactions between 53 selected naturally occurring phytohormones and specific targets related to human metabolism and health protection/disease, this study identified 28 human targets. The bioprospecting study revealed that many phytohormones may have beneficial effects on human health, potentially influencing cellular processes such as immune response and cell cycle progression.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2023)
Review
Biotechnology & Applied Microbiology
Jorge Poveda, Fernando Gonzalez-Andres
Summary: Microbial plant biostimulants (MPBs) enhance crop productivity and quality by activating plant physiological and molecular processes through phytohormone production. Bacillus species, a bacterial genus used as biopesticides, protect plants from pests and pathogens while promoting plant growth through various mechanisms, including increasing tolerance to stress conditions and improving plant nutrition. The production of phytohormones by Bacillus species plays a key role in increasing plant growth, development, and stress response.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Plant Sciences
Klaus-Peter Goetz, Frank-M Chmielewski, Danuse Tarkowska, Ales Pencik, Ondrej Novak
Summary: This study was conducted to assess the involvement of gibberellins (GAs), cytokinins (CKs), and auxins (AX) in the dormancy of sweet cherry buds. The results showed that these hormone groups did not exhibit significant changes during the transition between different dormancy phases. However, there were specific changes in the content of bioactive molecules during ontogenetic development.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Agronomy
Julia Stachurska, Iwona Sadura, Magdalena Rys, Michal Dziurka, Anna Janeczko
Summary: The aim of this study was to investigate hormonal imbalances and changes in protective heat shock proteins (HSP) during deacclimation in various cultivars of oilseed rape. Samples were collected from plants that were not acclimated, cold acclimated, and then deacclimated. Hormones such as abscisic acid, jasmonic acid, salicylic acid, gibberellins, auxins, and cytokinins were analyzed. Results showed a significant increase in abscisic acid concentration during cold acclimation, which decreased during deacclimation. Deacclimation also led to higher levels of growth hormones. The accumulation of HSP70 and HSP90 increased in three of the four tested cultivars during cold acclimation, but decreased during deacclimation. The changes in hormones and proteins are discussed in relation to frost tolerance.
Review
Biochemistry & Molecular Biology
Andrzej Bajguz, Alicja Piotrowska-Niczyporuk
Summary: Phytohormones have diverse chemical structures, primarily originating from three key metabolic precursors: amino acids, isoprenoids, and lipids. Specific amino acids contribute to the production of various phytohormones, while isoprenoids form the foundation of five phytohormone categories. Lipids function as a precursor for one type of phytohormone. Understanding the intricately complex biosynthesis routes of these plant hormones is crucial for understanding their regulation of plant growth, development, and physiology.
Article
Plant Sciences
Gerardo Nunez-Lillo, Lissette Ulloa-Zepeda, Catalina Pavez, Anibal Riveros, Francisca Blanco-Herrera, Reinaldo Campos-Vargas, Romina Pedreschi, Claudio Meneses
Summary: Research shows that the NAC072 gene plays a regulatory role in auxin-related genes and terpene biosynthesis genes in fruit development, while the defect in slow-ripening fruit may be caused by the absence of this gene.
Article
Plant Sciences
Malik G. Al-Ajlouni, Yahia A. Othman, Tala S. A'saf, Jamal Y. Ayad
Summary: The aim of this study was to assess the effect of five plant growth regulators (PGRs) on the growth, anatomy, yield, and flower quality of lily. The results showed that the application of BA and GA3 at a concentration of 50 mg l-1 significantly increased leaf area and flower number per stem, as well as extended vase life. Additionally, Ancymidol at a concentration of 50 mg l-1 reduced stem elongation without adverse effects on leaf and flower quality. Overall, foliar application of PGRs at a concentration of 50 mg l-1 holds promise for improving flower quality of lily cultivars.
SOUTH AFRICAN JOURNAL OF BOTANY
(2023)
Article
Plant Sciences
Ling Li, Xiaolong Sun, Wencai Yu, Mingchun Gui, Yanfen Qiu, Min Tang, Hai Tian, Guoping Liang
Summary: This study investigates the potential roles of phytohormones in somatic embryogenesis (SE) in rubber plants. Through analyzing the accumulation of phytohormones and gene expression changes in different stages of anther cultures, the study reveals the differential accumulation of phytohormones and their related genes in two different genotypes. The findings suggest the importance of phytohormones in SE in rubber plants.
Article
Plant Sciences
Miriam Romero-Munoz, Amparo Galvez, Purificacion A. Martinez-Melgarejo, Maria Carmen Pinero, Francisco M. del Amor, Alfonso Albacete, Josefa Lopez-Marin
Summary: There is a positive interaction between water mulching and AMF inoculation in promoting the growth of escarole plants by improving nutrient use efficiency and hormonal balance.
Review
Environmental Sciences
Aziz-Ur-Rahim Bacha, Iqra Nabi, Muhammad Zaheer, Wenbiao Jin, Lei Yang
Summary: Plastic waste has received significant research attention due to its accumulation, environmental issues, and impact on living organisms. There is an urgent need to remove plastic waste from the environment, and biodegradation is a promising treatment method. However, there is limited review on the bio-decomposition of plastics and the existing microbial species involved. This study provides an overview of influencing factors, existing species, and research gaps in biodegradation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Forestry
Ladislav Holik, Jiri Volanek, Valerie Vranova
Summary: The presence of auxins was found to stimulate native proteolytic activity, while cytokinins, ethephon, and chlorocholine chloride inhibited it. These negative phytohormonal effects may slow down organic matter decomposition rates and complicate plant nutrition. This study enhances understanding of the effects of rhizosphere exudates on soil microbial activity and the nitrogen cycle.
Review
Engineering, Environmental
Pankaj Bhatt, Satish Chandra Pandey, Samiksha Joshi, Parul Chaudhary, Vinay Mohan Pathak, Yaohua Huang, Xiaozhen Wu, Zhe Zhou, Shaohua Chen
Summary: Growing human interference has led to an increase in both organic and inorganic contaminants, posing a threat to ecosystems. Removing these toxic pollutants from the environment is challenging. Bioremediation combined with nanotechnology shows promise as a cost-effective method for pollutant removal. Nanomaterials have exceptional properties, such as improved catalysis and adsorption, making them of great interest. By using microbial cultures and nanomaterials, the bioremediation of toxic compounds can be facilitated. Understanding the relationship between microorganisms, contaminants, and nanoparticles is crucial. This review focuses on the removal of toxic pollutants through the combined effects of nanoparticles and microbial technology, highlighting the significance and contribution of this novel nanobioremediation technique to sustainability.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Shuo Li, Yalun Yang, Shanshan Yang, Heshan Zheng, Yongjie Zheng, M. Jun, Dillirani Nagarajan, Sunita Varjani, Jo-Shu Chang
Summary: Plastics have become an essential part of life, but when they enter the environment, they break down into smaller fragments called microplastics (MPs) which are detrimental to the environment and human health. Bioremediation is considered the most environmentally friendly and cost-effective method for MP degradation, but there is limited knowledge about it. This review explores the sources and migration behavior of MPs, discusses biodegradation potential and mechanisms, analyzes the factors influencing biodegradation, and discusses the prospects and challenges of biodegradation technologies for MPs.
Article
Biology
Ainoa Morillas-Espana, Angela Ruiz-Nieto, Tomas Lafarga, Gabriel Acien, Zouhayr Arbib, Cynthia Gonzalez-Lopez
Summary: The world population is expected to grow by over 2 billion people, leading to an increased demand for agricultural production. This study focuses on producing high-quality microalgal biomass using wastewater and assessing its biostimulant capacity. The results show the potential of using microalgae as a sustainable source of biostimulants.
Review
Environmental Sciences
Prateek Gururani, Pooja Bhatnagar, Vinod Kumar, Mikhail S. Vlaskin, Anatoly Grigorenko
Summary: Urbanization, industrialization and other human-related activities contribute to the discharge of toxic substances into the environment. The use of algae in wastewater treatment has been widely studied and it has been found that algae consortium systems are more effective than monocultures. Microorganisms such as bacteria or fungi in wastewater can form symbiotic relationships with algae, aiding in the removal of pollutants. This review explores the symbiotic relationships between algae and other microorganisms and their applications in wastewater treatment.