Bitki renk maddelerinin (pigmentler) oluşum ve değişim fizyolojisi

Çevremizde gördüğümüz tüm nesnelerin sahip oldukları özel pigmentler belirli dalga boylarına sahip ışınları absorbe edip bazılarını yansıttıkları için, farklı renk tonları ortaya çıkmaktadır. Bitkilerde fotosentez mekanizmasında temel rol oynayan klorofil a, klorofil b ve karotenoidler gibi fotosentetik pigmentler ve ayrıca antioksidant özelliği olan antosiyanin grubu pigmentler yansıttıkları ışınlar nedeniyle bitki renklenmesinde de rol oynamaktadırlar. Mevcut çalışmada birçok farklı bitkide bulunan özel pigmentler, kimyasal yapıları, bitki gelişim süreci içinde bunların oluşum ve değişim fizyolojisi hakkında yapılan çalışmalar değerlendirilmiştir.

Anahtar Kelimeler:

bitki pigmentleri, pigmentler, fotosentez, bitki fizyolojisi

The formation and changing physiology of plant colour pigments

The different color hues occur on each object in our environments because all objects with particular pigments absorb some sun-rays and reflect other those with different wave length rays. The photosynthetic pigments such as chlorophyll a, chlorophyll b and carotenoids with significant function during photosynthesis process and the anthocyanins with antioxidant feature have also a function on plant color formation because these pigments reflect some sun-rays. The studies carried out on the special pigments, their chemical structure and the formation and changing physiology were evaluated in present review.

Keywords:

plant pigments, pigments, photosynthesis, plant physiology,

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