Article
Construction & Building Technology
Cong Song, Haowei Sang, Yanfeng Liu, Dengjia Wang, Baimu Suolang, Guannan Duan, Ruixuan Cao
Summary: This study classified the intensities of thermal and humid stresses caused by migration, conducted a nationwide questionnaire survey to obtain subjective evaluations, and found that previous exposure significantly influenced people's thermal and humid expectation levels.
BUILDING AND ENVIRONMENT
(2023)
Article
Plant Sciences
Tomoki Oshita, Joongeun Sim, Taufika Islam Anee, Hanako Kiyono, Chihiro Nozu, Nobuhiro Suzuki
Summary: This study investigated the effects of heat, cadmium (Cd), and their combination on the growth and physiological characteristics of Arabidopsis thaliana. The combination of heat and Cd stress had more negative effects on Arabidopsis plants compared to individual stresses, despite similar Cd accumulation. This stress combination caused a reduction in photosynthetic proteins and increased lipid peroxidation, indicating oxidative damage. Interestingly, mutants deficient in jasmonic acid (JA) synthesis showed reduced negative effects of the stress combination on growth and photosystem II efficiency.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Plant Sciences
Mohd Fauzihan Karim, Giles N. Johnson
Summary: The dynamic acclimation of photosynthesis is crucial for enhancing a plant's fitness under varying light conditions. Plants lacking GPT2 show increased susceptibility to oxidative stress due to defective acclimation to changes in light intensity.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Environmental Sciences
Simone Messina, David Costantini, Marcel Eens
Summary: The global climate change in the Anthropocene poses a significant threat to species survival. Ectotherms are highly sensitive to the stressors induced by carbon dioxide emissions, resulting in oxidative damages and changes in immune function. A meta-analysis of 56 studies involving 1259 effect sizes revealed that CO2-induced stressors increase oxidative damages in ectothermic vertebrates and upregulate antioxidant enzyme activity at higher temperatures. Temperature and water acidification have weak impacts on immune function, showing inconsistent responses among immune traits. The intensity and duration of temperature treatments enhance the physiological response of ectotherms, particularly in extreme warming events, while adult individuals have lower antioxidant enzymatic responses compared to early life stages.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Physiology
Huamin Wang, Ying Wang, Minghui Niu, Linghong Hu, Liangbiao Chen
Summary: The study found that cold acclimation can improve the low temperature tolerance of fish cells, which is associated with changes in the oxidative stress pathway and the occurrence of apoptosis within the cells.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Plant Sciences
Lou Lambert, Felix de Carpentier, Phuc Andre, Christophe H. Marchand, Antoine Danon
Summary: This study investigates the mechanisms of programmed cell death in a unicellular photosynthetic organism using Chlamydomonas as a model organism. The research reveals that light-dependent programmed cell death in Chlamydomonas relies on the generation of reactive oxygen species through photosynthesis and is executed by a key protein called type II metacaspase.
Article
Environmental Sciences
Sanaz Hazraty-Kari, Masaya Morita, Parviz Tavakoli-Kolour, Takashi Nakamura, Saki Harii
Summary: As global temperatures rise, the impact of heat stress on coral remains poorly understood. In this study, Acropora tenuis juveniles were exposed to varying temperatures over three consecutive years. The results showed that while survival rates initially remained high, they gradually declined over time, particularly in groups exposed to heat stress multiple times. Symbiotic algal density and photosynthetic activity also decreased. Overall, this study highlights the vulnerability of juvenile corals to heat stress and the potential long-term consequences for reef ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Wagner Romulo Lima Lopes Filho, Flavio Henrique Santos Rodrigues, Izabely Vitoria Lucas Ferreira, Lorena Oliveira Correa, Roberto Lisboa Cunha, Hugo Alves Pinheiro
Summary: The study reveals that repetitive water deficit events induce acclimation of the photosynthetic machinery in oil palm through adjustments in various parameters related to photosynthesis and by attenuating oxidative damages, helping the plants adapt to this environmental stress.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Biology
Samuel J. Gurr, Shelly A. Trigg, Brent Vadopalas, Steven B. Roberts, Hollie M. Putnam
Summary: The study shows that conditioning to moderate P-CO2 stress followed by exposure to severe and moderate P-CO2 stress can increase tolerance in pediveliger Pacific geoduck clams, as indicated by higher respiration rate, organic biomass, and shell size. Additionally, stress-acclimated clams exhibit lower antioxidant capacity compared to clams under ambient conditions, suggesting that stress during postlarval-to-juvenile development impacts oxidative status later in life. Time series and stress intensity-specific approaches can help identify beneficial phenotypic variations in different life stages and exposure magnitudes.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Review
Plant Sciences
Andrew P. Scafaro, Yuzhen Fan, Bradley C. Posch, Andres Garcia, Onoriode Coast, Owen K. Atkin
Summary: Mitochondrial respiration is central to plant physiology and responds dynamically to daily temperature changes, but is more susceptible to short-term heatwaves. As leaf temperature rises, catalysis increases driving faster metabolism, despite declines in photosynthesis, leading to protein denaturation and inactivation of respiratory enzymes. Under extreme heat, membranes become overly fluid and enzymes are impaired, ultimately leading to the breakdown of leaf respiration and limiting leaf survival.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Biology
Anurak Khieokhajonkhet, Suthipat Sangphrom, Niran Aeksiri, Pattaraporn Tatsapong, Kunlayaphat Wuthijaree, Gen Kaneko
Summary: This study found that long-term exposure to high temperatures affects the growth and physiological parameters of hybrid catfish. The best performance was observed at 32 degrees C, while fish acclimated at 37 degrees C showed decreased growth and feed utilization. Increasing temperatures also led to skin darkening, decreased fat content, altered blood parameters, and changes in gill and liver histology. Additionally, fish acclimated at higher temperatures exhibited increased operculum movement and gasping for air, indicating physiological stress. Overall, a maximum temperature of 37 degrees C may pose risks to hybrid catfish.
JOURNAL OF THERMAL BIOLOGY
(2022)
Review
Horticulture
Wallace de Paula Bernado, Anne Reis Santos, Ellen Moura Vale, Saulo Pireda, Laisa Zanelato Correia, Guilherme Augusto Rodrigues desouza, Deivisson Pelegrino de Abreu, Leticia Karen Oliveira Carvalho, Felipe Astolpho Almeida, Danilo Forca Baroni, Fabio Luiz Partelli, Ricardo Henrique Bressan-Smith, Miroslava Rakocevic, Jose Cochicho Ramalho, Eliemar Campostrini, Weverton Pereira Rodrigues
Summary: Coffee, the second most consumed beverage in the world, plays a vital role in the global economy. However, studies have shown that climate change-induced increase in UV radiation can significantly impact coffee crops. UV radiation can negatively affect the morphology, anatomy, physiology, and biochemistry of coffee plants, leading to growth and yield limitations. On the other hand, plants can respond positively to UV radiation through increased environmental resistance and growth promotion.
SCIENTIA HORTICULTURAE
(2024)
Article
Plant Sciences
Constanza Carmach, Monica Castro, Patricia Penaloza, Leda Guzman, Maria Jose Marchant, Samuel Valdebenito, Ivan Kopaitic
Summary: This study demonstrates that the use of green and red photo-selective filters significantly affects the process of graft union formation in tomato plants. The green filter enhances cell proliferation and early differentiation of vascular tissue cells, leading to increased overall growth. The results suggest that green filters have a positive impact on oxidative stress, anatomical development, and overall growth of grafted tomato plants.
Article
Biology
Xuejing Zhang, Yonggang Niu, Haiying Zhang, Tisen Xu, Qiangcheng Zeng, Kenneth B. Storey, Qiang Chen
Summary: The research reveals the changes in antioxidant defense system of high-altitude frogs during long-term cold acclimation, indicating that cold acclimation leads to increased oxidative stress and damage, as well as an overall suppression of antioxidant enzyme activities.
JOURNAL OF THERMAL BIOLOGY
(2021)
Article
Environmental Sciences
Sritama Baag, Sayantan Mahapatra, Sumit Mandal
Summary: This study investigated the effects of chlorpyrifos on Bellamya bengalensis, finding that long-term exposure significantly altered growth conditions, while both acute and long-term exposure enhanced antioxidant and detoxification enzyme activity. DNA damage increased significantly under long-term exposure, but also escalated under acute severe warming.