| dbo:abstract |
الحماية الضوئية هي العملية الكيميائية الحيوية التي تساعد الكائن الحي في مواجهة التلف الجزيئي الناتج عن التعرض لضوء الشمس، إذ طورت النباتات وغيرها من الكائنات ضوئية التغذية مجموعة من آليات الحماية الضوئية لمنع التثبيط الضوئي والإجهاد التأكسدي الناجم عن زيادة شدة الإضاءة أو التقلبات في الظروف الضوئية. طور البشر والحيوانات آليات متطورة للحماية الضوئية تجنبهم أضرار الأشعة فوق البنفسجية التي قد تلحق بالجلد، وتمنع تلف الحمض النووي وتحد من الآثار النهائية للإجهاد التأكسدي. (ar) Der Begriff Photoprotektion bezeichnet die Mechanismen, die die Natur nutzt, um die schädliche Wirkung der UV-Strahlung auf die menschliche Haut zu minimieren. (de) Photoprotection is the biochemical process that helps organisms cope with molecular damage caused by sunlight. Plants and other oxygenic phototrophs have developed a suite of photoprotective mechanisms to prevent photoinhibition and oxidative stress caused by excess or fluctuating light conditions. Humans and other animals have also developed photoprotective mechanisms to avoid UV photodamage to the skin, prevent DNA damage, and minimize the downstream effects of oxidative stress. (en) La photoprotection désigne les processus biochimiques qui permettent aux organismes de lutter contre les effets nocifs du rayonnement solaire. Elle désigne plus particulièrement tous les moyens, naturels ou artificiels, visant à limiter l'exposition de la peau à ce rayonnement solaire. (fr) A fotoproteção é um conjunto de mecanismos que ajudam os seres vivos a superar os danos moleculares causados pela luz solar. As plantas e outros fotoautotróficos de oxigénio desenvolveram uma série de mecanismos para prevenir a fotoinibição e o estresse oxidativo causado pelo excesso de luz ou condições instáveis da mesma. Os humanos e outros animais desenvolveram também mecanismos fotoprotetivos para evitar danos na pele causados pela radiação ultravioleta, para prevenir e minimizar os causados pelo estresse oxidativo. (pt) |
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الحماية الضوئية هي العملية الكيميائية الحيوية التي تساعد الكائن الحي في مواجهة التلف الجزيئي الناتج عن التعرض لضوء الشمس، إذ طورت النباتات وغيرها من الكائنات ضوئية التغذية مجموعة من آليات الحماية الضوئية لمنع التثبيط الضوئي والإجهاد التأكسدي الناجم عن زيادة شدة الإضاءة أو التقلبات في الظروف الضوئية. طور البشر والحيوانات آليات متطورة للحماية الضوئية تجنبهم أضرار الأشعة فوق البنفسجية التي قد تلحق بالجلد، وتمنع تلف الحمض النووي وتحد من الآثار النهائية للإجهاد التأكسدي. (ar) Der Begriff Photoprotektion bezeichnet die Mechanismen, die die Natur nutzt, um die schädliche Wirkung der UV-Strahlung auf die menschliche Haut zu minimieren. (de) Photoprotection is the biochemical process that helps organisms cope with molecular damage caused by sunlight. Plants and other oxygenic phototrophs have developed a suite of photoprotective mechanisms to prevent photoinhibition and oxidative stress caused by excess or fluctuating light conditions. Humans and other animals have also developed photoprotective mechanisms to avoid UV photodamage to the skin, prevent DNA damage, and minimize the downstream effects of oxidative stress. (en) La photoprotection désigne les processus biochimiques qui permettent aux organismes de lutter contre les effets nocifs du rayonnement solaire. Elle désigne plus particulièrement tous les moyens, naturels ou artificiels, visant à limiter l'exposition de la peau à ce rayonnement solaire. (fr) A fotoproteção é um conjunto de mecanismos que ajudam os seres vivos a superar os danos moleculares causados pela luz solar. As plantas e outros fotoautotróficos de oxigénio desenvolveram uma série de mecanismos para prevenir a fotoinibição e o estresse oxidativo causado pelo excesso de luz ou condições instáveis da mesma. Os humanos e outros animais desenvolveram também mecanismos fotoprotetivos para evitar danos na pele causados pela radiação ultravioleta, para prevenir e minimizar os causados pelo estresse oxidativo. (pt) |
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حماية ضوئية (ar) Photoprotektion (de) Photoprotection (fr) Photoprotection (en) Fotoproteção (pt) |
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