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http://dx.doi.org/10.1002/ajb2.16068 | DOI Listing |
BMC Plant Biol
January 2025
Key Comprehensive Laboratory of Forestry, Northwest A&F University, Yangling, Shaanxi Province, 712100, P. R. China.
Background: Study the leaf functional traits is highly important for understanding the survival strategies and climate adaptability of old trees. In this study, the old (over 100 years old) and mature trees (about 50 years old) of Pinus tabulaeformis in the Loess Plateau were studied, and the variation of 18 leaf functional traits (6 economic, 4 anatomical, 2 photosynthetic and 6 physiological traits) was analyzed to understand the differences of survival strategies between old and mature trees. Combined with transcriptome and simple sequence repeats (SSR) techniques, the effects of soil property factors and genetic factors on leaf functional traits and the potential molecular mechanisms of traits differences were studied.
View Article and Find Full Text PDFSci Rep
January 2025
Brown University, Cognitive and Psychological Sciences, Providence, 02912, USA.
The existence of biases in visual perception and their impact on visually guided actions has long been a fundamental yet unresolved question. Evidence revealing perceptual or visuomotor biases has typically been disregarded because such biases in spatial judgments can often be attributed to experimental measurement confounds. To resolve this controversy, we leveraged the visuomotor system's adaptation mechanism - triggered only by a discrepancy between visual estimates and sensory feedback - to directly indicate whether systematic errors in perceptual and visuomotor spatial judgments exist.
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January 2025
Departamento Biología Experimental, Universidad de Jaén, Paraje Las Lagunillas S/N E23071, Jaén, Spain.
In this study, we investigate the G2 checkpoint activated by chromosome entanglements, the so-called Decatenation Checkpoint (DC), which can be activated by TOP2A catalytic inhibition. Specifically, we focus on the spontaneous ability of cells to bypass or override this checkpoint, referred to as checkpoint adaptation. Some factors involved in adapting to this checkpoint are p53 and MCPH1.
View Article and Find Full Text PDFPlanta
January 2025
Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Cairo, 11341, Egypt.
Under salt stress, autophagy regulates ionic balance, scavenges ROS, and supports nutrient remobilization, thereby alleviating osmotic and oxidative damage. Salt stress is a major environmental challenge that significantly impacts plant growth and agricultural productivity by disrupting nutrient balance, inducing osmotic stress, and causing the accumulation of toxic ions like Na. Autophagy, a key cellular degradation and recycling pathway, plays a critical role in enhancing plant salt tolerance by maintaining cellular homeostasis and mitigating stress-induced damage.
View Article and Find Full Text PDFAm J Physiol Regul Integr Comp Physiol
January 2025
Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada.
Hypoxia at high altitude can constrain aerobic metabolism and elicit physiological responses that are detrimental to health and fitness. Responses of the sympathoadrenal system are vital for coping with acute hypoxia, but can become maladaptive with prolonged activation in chronic hypoxia. We examined how adrenal function is altered in high-altitude populations of deer mice (), which have evolved to overcome chronic hypoxia in their native environment.
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