Bazı Tıbbi ve Aromatik Bitkilerin Farklı Kirlilik Etmenlerine Karşı Fitoremediasyon Davranışları

Öz

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Anahtar Kelimeler

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Bazı Tıbbi ve Aromatik Bitkilerin Farklı Kirlilik Etmenlerine Karşı Fitoremediasyon Davranışları

Öz

Tıbbi ve aromatik bitkiler koruyucu ve tedavi edici olarak kullanılmaktadır. Son zamanlarda, biyolojik çeşitliliğin korunması ve gelecek kuşaklara aktarılmasında önem kazanmışlardır. Civa, kadmiyum ve kurşun gibi ağır metallerin neden olduğu çevre kirliliği tüm dünyayı tehdit eder hale gelmiştir. Ağır ya da toksik metaller sudan beş kat daha yoğun ve hareketsiz olduklarından vücut tarafından sindirilemezler ancak besin zincirine geçebilirler. Zehirli endüstriyel atıklar sıvı gübrelerle karışarak tarım arazilerine yayılabilmektedirler. Topraktaki metal iyonların çözünemeyen formlara dönüştürülmesi oldukça pahalı, geniş alanlara uygulanabilirliği de oldukça zor görünmektedir. Ağır metalleri bünyelerinde toplayan bitkiler sorunun çözümünde alternatif olarak görünmektedirler. Yapılan araştırmalar çeşitli tıbbi ve aromatik bitkilerin (nane, lavanta, kekik, kantaron, kenevir, portakal nergisi, gül hatmi, labada, it üzümü vs) ağır metal ve çeşitli kirlilik etmenlerine aynı şartlarda yetiştirilen diğer bazı kültür bitkilerine kıyasla çok daha dayanıklı olduklarını göstermiştir.

 

Anahtar Kelimeler

• Tıbbi ve aromatik bitkiler; çevre kirleticiler; fitoremediasyon

Kaynakça

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