Gibberellic acid and 6-benzylaminopurine delays yellowing of pak choi (Brassica rapa subsp. chinensis) by inhibiting lipid peroxidation and chlorophyll degradation DOI Creative Commons
Liuli Song, Rui Zhao, Wenhui Hu

et al.

Scientia Horticulturae, Journal Year: 2024, Volume and Issue: 340, P. 113919 - 113919

Published: Dec. 19, 2024

Language: Английский

Metals in Motion: Understanding Labile Metal Pools in Bacteria DOI Creative Commons
John D. Helmann

Biochemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Metal ions are essential for all life. In microbial cells, potassium (K+) is the most abundant cation and plays a key role in maintaining osmotic balance. Magnesium (Mg2+) dominant divalent required nucleic acid structure as an enzyme cofactor. Microbes typically require transition metals manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), although precise set of metal needed to sustain life variable. Intracellular pools can be conceptualized chemically complex mixture rapidly exchanging (labile) ions, complemented by those reservoirs that exchange slowly relative cell metabolism (sequestered). Labile buffered transient interactions with anionic metabolites macromolecules, ribosome playing major role. Sequestered include many metalloproteins, cofactors, storage depots, some redeployed upon depletion. Here, I review size, composition, dynamics intracellular highlight gaps understanding.

Language: Английский

Citations

3

Response to Water Stress of Eight Novel and Widely Spread Citrus Rootstocks DOI Creative Commons
Giulia Modica,

Fabio Arcidiacono,

Ivana Puglisi

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 773 - 773

Published: March 3, 2025

Drought is a problematic abiotic stress affecting citrus crops in the Mediterranean basin and rootstock plays fundamental role adopting adaptive mechanisms response to water deficit. The aim of this study evaluate eight rootstocks under three treatments imposed: control (100% reference evapotranspiration, Et0), 66% Et0 50% Et0. genotypes studied were C35 citrange, Bitters, Carpenter Furr which have been recently spread so far, little investigated, while others widely used especially industry, i.e., Citrus macrophylla, C. volkameriana, Swingle citrumelo Carrizo citrange. Morphological analyses, leaf chlorophyll content determination, physiological measurement, proline accumulation, malondialdehyde determination antioxidant enzyme activities measured. results exhibited that Bitters showed an increment area reduce effects drought conditions. A decrement gas exchanges xylem potential was noticed citrange at both shortage treatments. significant increase stresses (90.3 103.3%, for 66 Et0). performed better than other with regard enzymatic hormonal assays. Specifically, reduction CAT (−68.6%), SOD (−82.5%) APX (−36.7%). Furthermore, closely related morphological parameters, e.g., root length, measurements. volkameriana decrease potential, overall citranges susceptible reducing

Language: Английский

Citations

1

A new biochemical pathway in chlorophyll degradation in melon fruit DOI

Maria Serra,

Antonio Pérez‐Gálvez, María Roca

et al.

Food Chemistry, Journal Year: 2025, Volume and Issue: 475, P. 143316 - 143316

Published: Feb. 11, 2025

Language: Английский

Citations

0

Transcriptomic Profiling Reveals Key Genes Underlying Cold Stress Responses in Camphora DOI Creative Commons

Bowen Shi,

Linlin Zheng, Yifeng Wang

et al.

Life, Journal Year: 2025, Volume and Issue: 15(2), P. 319 - 319

Published: Feb. 19, 2025

The genus Camphora encompasses species of significant ecological and economic importance, such as C. parthenoxylon officinarum, which exhibit distinct phenotypic traits stress responses. This study seeks to elucidate the molecular basis cold tolerance through comparative transcriptomic analysis complemented by physiological characterization. RNA sequencing revealed 6123 differentially expressed genes between two species, with enriched pathways related stress, oxidative carotenoid biosynthesis, photosynthesis. Key genes, annexin D5, chlorophyll a/b-binding protein, early light-induced protein 1, 9-cis-epoxycarotenoid dioxygenase, were identified critical regulators frost resistance, photosynthetic efficiency, biosynthesis. Functional enrichment analyses highlighted involvement signal transduction, membrane stabilization, secondary metabolism in adaptive Physiological assays supported these findings, showing higher content enhanced antioxidative enzyme activities parthenoxylon. These results provide valuable insights into genetic biochemical mechanisms underlying adaptation offer promising targets for enhancing resilience economically plants.

Language: Английский

Citations

0

Kinetics of Chlorophyll Degradation in Japanese Maple (Acer palmatum) Leaves with In Situ Heating Visible and Near-Infrared Spectroscopic Monitoring DOI Creative Commons
Satοru Nakashima, Hideo Yamasaki,

Shigeto Kanda

et al.

Life, Journal Year: 2025, Volume and Issue: 15(3), P. 335 - 335

Published: Feb. 21, 2025

Decreases in chlorophyll control the degradation of green plants during leaf senescence and fruit ripening processes. Our previous daily monitoring natural processes Japanese maple (Acer palmatum) leaves demonstrated initial slow later fast (Chl) decrease rates. In this study, Chl were monitored by situ visible near-infrared spectroscopy heating to 30–200 °C. The decreases with time 640–720 nm band area, due mainly a after water decrease, fitted first-order kinetics. obtained rate constants k1 from 200 60 °C showed quasi-linear trend on an Arrhenius plot activation energy Ea 38 kJ·mol−1, while those 30 had different 91 kJ·mol−1. Since faster rates are extension higher-temperature trend, process might occur without protection proteins photosynthetic system. On other hand, slower lower-temperature have protein protection.

Language: Английский

Citations

0

Semi-Field Evaluation and Genotoxicity of Chlorophyllin Applied Against Aedes aegypti Larvae (Diptera, Culicidae) DOI Creative Commons

Magda H. Rady,

Asmaa Ammar, Areej A. Al-Khalaf

et al.

Insects, Journal Year: 2025, Volume and Issue: 16(3), P. 255 - 255

Published: March 1, 2025

Dengue fever is a mosquito-borne viral infection that recently appeared in Upper Egypt. Globally, more than 50 million new infections occur annually. It currently lacks effective treatment, necessitating vector control strategies targeting Aedes aegypti. This study investigates the potential of chlorophyllin as agent against dengue vectors. Chlorophyllin was characterized by FTIR analysis. The singlet oxygen quantum yield determined comparing luminescence intensity at 1270 nm with phenalenone, yielding value 0.18. LC50 and LC90 values were calculated for chlorophyllin. Its larvicidal efficacy assessed, revealing an 0.47 ppm controlled laboratories 93.3 semi-field conditions, demonstrating its superior potency aegypti compared to pheophorbide Bacillus sphaericus. Genotoxicity analyzed through Random Amplified Polymorphic DNA (RAPD)-PCR, histopathological changes documented microscopic examination. genotoxicity results revealed high similarity configurations chlorophyllin-treated larvae healthy individuals (similarity index 0.8), whereas sphaericus exhibited substantial genetic deviations. Histopathological analysis demonstrated severe disruptions larvae’s gut epithelial cells muscle tissues, including detachment irregular cell shapes. These findings position promising toxin larvicide control, favorable safety profile conventional chemicals.

Language: Английский

Citations

0

Ionizing radiation resilience: how metabolically active lichens endure exposure to the simulated Mars atmosphere DOI Creative Commons
Kaja Skubała, Karolina Chowaniec, Mirosław Kowaliński

et al.

IMA Fungus, Journal Year: 2025, Volume and Issue: 16

Published: March 31, 2025

Language: Английский

Citations

0

Valorization of Fruit and Vegetable Waste: An Approach to Focusing on Extraction of Natural Pigments DOI Creative Commons

Khadija Ramzan,

Syeda Hijab Zehra,

Aistė Balčiūnaitienė

et al.

Foods, Journal Year: 2025, Volume and Issue: 14(8), P. 1402 - 1402

Published: April 18, 2025

The increasing demand for functional foods has spurred interest in bioactive compounds, particularly their role health promotion and disease prevention. This review comprehensively explores the bioavailability, mechanisms of action, potential applications compounds derived from natural food sources. We have systematically compiled synthesized data recent scientific literature, including peer-reviewed journal articles, clinical studies, meta-analyses, to present an in-depth evaluation these compounds’ physicochemical properties, stability, interactions within matrices. Furthermore, this discusses advanced delivery systems, such as nanoencapsulation emulsification, enhancing bioavailability targeted release. By addressing critical gaps understanding technological aspects underscores relevance formulating novel nutraceuticals foods. insights presented herein provide a foundation future research practical industry, ultimately contributing improving human well-being. Although recovering waste is sustainable way reduce use resources, additional required make procedures more efficient on industrial scale.

Language: Английский

Citations

0

Fast Light‐Driven Curling Actuation Based on Agar‐Chlorophyll Film DOI
Hao Wang, Jiwei Jiang,

Yunyu Sun

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(17)

Published: April 28, 2025

Abstract The advanced sensing and driving capabilities of soft actuators have been driven by a range modern society's intelligent requirements. However, many traditional do not account for biocompatibility are challenging to decompose naturally, leading significant issues related resource waste environmental pollution. Here, promising light‐driven curling actuator with excellent degradation performance is reported in this paper. This environmentally friendly film made agar chlorophyll using solution mixing spin coating method. resulting has the Janus structure responds quickly near infrared light (NIR) speed 1 cm −1 2 s due uneven stress distribution caused inhomogeneous thermal expansion. Interestingly, agar‐chlorophyll remote control self‐degradation functions. As proof‐of‐concept application, circuit switches grabbers based on developed enable only remotely switch but also item transport control. Meanwhile, can be degraded soil 10 days without causing We believe biocompatible proposed paper provide new insights development robots other artificial intelligence devices.

Language: Английский

Citations

0

Norfloxacin Oxidative Degradation and Toxicity in Aqueous Media: Reciprocal Effects of Acidity Evolution on Metal Cations and Clay Catalyst Dispersion DOI Open Access

Roumaissa Djidja,

David Dewez, Abdelkrim Azzouz

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(9), P. 4347 - 4347

Published: May 2, 2025

The ozonation of norfloxacin (NOF), a widely used fluoroquinolone antibiotic, in the presence Na+, Fe2+, Cu2+, Ni2+, and Co2+ cations their montmorillonite-supported counterparts was investigated. NOF degradation toxicity ozonized mixtures towards an aquatic organism (Lemna minor) were evaluated terms changes its frond number, chlorophyll content, photosynthesis efficacy, production reactive oxygen species (ROS). evolution over time grade discussed i. observed interactions cation clay catalyst with molecules; ii. pH decay, during ozonation. Ion-exchange Lewis acid–base appear to govern adsorption dispersion correlation progressive formation acidic aqueous media. These findings reveal promising prospects for tailoring optimum oxidative water treatments minimum predicting environmental impacts on

Language: Английский

Citations

0