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      Keragaman Mikroalga Berbasis Morfologi serta Teknik Isolasi dan Amplifikasi DNA Mikroalga dari Pantai Ujung Genteng

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      Date
      2022
      Author
      Sari, Iin Eka
      Supena, Ence Darmo Jaya
      Fendiyanto, Miftahul Huda
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      Abstract
      Identifikasi keragaman mikroalga berdasarkan morfologi dan molekuler baik dari air laut maupun air tawar telah banyak dipublikasikan. Pantai Ujung Genteng di Sukabumi yang memiliki karakteristik wilayah dengan tutupan padang lamun yang luas serta merupakan wilayah zona intertidal belum dilakukan penelitian tentang keragaman mikroalganya. Penelitian yang telah dilaksanakan ini bertujuan mengidentifikasi keragaman mikroalga yang bersumber dari air laut Pantai Ujung Genteng berdasarkan ciri morfologi serta mengembangkan teknik isolasi dan amplifikasi DNA mikroalga. Pengambilan sampel dilakukan sebanyak tiga kali pada 3 lokasi penelitian yang telah ditentukan. Metode yang dilakukan adalah purposive sampling sebanyak 10 liter air laut dan dianalisis di Laboratorium Fisiologi dan Biologi Molekuler Tumbuhan, identifikasi morfologi menggunakan mikroskop binokuler, isolasi dan amplifikasi DNA menggunakan marka 18S rDNA. Berdasarkan hasil identifikasi morfologi jumlah spesies yang ditemukan di Pantai Ujung Genteng adalah 47 spesies yang mencakup 6 kelas mikroalga. Hasil uji kualitas DNA menggunakan PCR dan elektroforesis dapat memunculkan pita DNA yang mengindikasikan bahwa tahapan amplifikasi DNA mikroalga berhasil dilakukan, meskipun hanya satu dari tujuh sampel DNA yang diisolasi.
       
      The identification of microalgae diversity based on morphology and molecules from both seawater and fresh water has been widely published. Ujung Genteng Beach in Sukabumi, which has the characteristics of an area with extensive seagrass cover and is an intertidal zone, has not been studied on the diversity of microalgae. The research that has been carried out is aimed at identifying the diversity of microalgae sourced from seawater at Ujung Genteng Beach based on morphological characteristics and developing techniques for isolation and amplification of microalgae DNA. Sampling was carried out three times at 3 predetermined research locations. The method used was purposive sampling of 10 liters of seawater and analyzed in the Laboratory of Physiology and Plant Molecular Biology, morphological identification using a binocular microscope, isolation and DNA amplification using 18S rDNA markers. Based on the results of morphological identification, the number of species found at Ujung Genteng Beach is 47 species which includes 6 classes of microalgae. The results of DNA quality tests using PCR and electrophoresis can reveal DNA bands indicating that the microalgae DNA amplification step was successful, although only one of the seven DNA samples was isolated.
       
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      http://repository.ipb.ac.id/handle/123456789/115385
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