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Integrated Evaluation of Osmotic and Antioxidant Defense Mechanisms in Cotton Genotypes Exposed to NaCl Stress
Salinity stress is one of the major abiotic factors limiting cotton productivity worldwide by inducing osmotic imbalance, oxidative stress, and metabolic disturbances in plant tissues. The present study aimed to evaluate the physiological and biochemical responses of different cotton (Gossypium hirsutum L.) genotypes under NaCl-induced salinity stress through analysis of proline accumulation, antioxidant enzyme activities, and lipid peroxidation intensity. The experiment was conducted under...
Amino Acid Stress Induces Non-AUG Initiation of c-myc Translation
Initiation of translation at non-AUG start codons can generate novel isoforms of important cellular regulators, with activities or localization distinct from their AUG-initiated counterparts. Ribosomes scanning the 5'UTR upstream of canonical AUG starts recognize near-cognate starts inefficiently, however, and the mechanisms by which non-canonical starts might be regulated physiologically are poorly understood. We show here that the restriction of utilization of individual amino acid induces...
Physiological and Biochemical Responses of Grafted Tomato Plants to Salinity Stress: Evidence from the Syrian Coast
The research was carried out in Tartus (Syria), in a plastic greenhouse during the season 2024- 2025. Two tomato hybrids Levovil and Shannon were grafted onto two tomato Spirit and Maxifort rootstocks. Four levels of salinity (0, 50, 100 and 150 mM NaCl) were applied on the hybrids and grafted plants.
Mitochondria directly interact with the nuclear pore complex
Abstract Mitochondria regulate cellular processes through direct and indirect interactions with other organelles. A well-studied example has been contact with the endoplasmic reticulum at mitochondrial-associated endoplasmic reticulum membranes1, which control pathways including redox and calcium homeostasis2,3. Recent studies have also reported direct mitochondria–nuclear membrane contacts in cancer cells and yeast that promote pro-survival signalling4,5.