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Azar, Alda Wydia Prihartini
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Keragaman Morfologi Tumbuhan dan Karakteristik Polen dari Tiga Anggota Genus Ixora Kusumardani, Hasna Dyah; Kamaludin, Fuad; Lestari, Sri; Aryani, Riska Desi; Azar, Alda Wydia Prihartini
Menara Ilmu : Jurnal Penelitian dan Kajian Ilmiah Vol 19, No 2 (2025): Vol 19 No. 02 JANUARI 2025
Publisher : LPPM Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/mi.v19i2.6176

Abstract

AbstrakIxora merupakan genus dari keluarga Rubiaceae yang memiliki karakteristik dan variasi warna yang unik, sehingga sering dijumpai di pekarangan dengan jenis yang beragam. Beberapa jenis Ixora diketahui berasal dari berbagai negara di Asia seperti India,  China, Filipina, Thailand, hingga Indonesia. Tiga jenis Ixora yang sering ditemukan di Indonesia antara lain Ixora javanica, Ixora chinensis, dan Ixora coccinea. Warna dan ukuran bunga Ixora dapat bervariasi, tergantung pada jenisnya. Karakteristik morfologi polen juga dapat dijadikan dasar dalam mengidentifikasi tumbuhan dari tingkat famili hingga tingkat yang lebih rendah seperti spesies. Penelitian ini bertujuan untuk melihat keragaman morfologi tumbuhan dan karakteristik polen dari jenis tiga anggota genus Ixora, yaitu Ixora javanica, Ixora chinensis, dan Ixora coccinea. Metode pengambilan sampel yang dilakukan adalah purposive sampling, yaitu dengan mengambil sampel secara acak atau random dengan karakteristik yang serupa untuk ketiga sampel dan diamati morfologi serta polennya. Berdasarkan pengamatan terhadap tiga anggota genus Ixora, diketahui bahwa ketiga spesies tanaman tersebut memiliki perbedaan secara morfologi yang dapat diamati pada warna dan ukuran organ bunga. Sementara itu, pengamatan pada polen dari ketiga spesies tanaman tersebut menunjukkan bahwa ketiga spesies tersusun atas satu unit (monad), dengan tipe apertura dari polen ini adalah tiga celah (tricolporate). Kata Kunci: Rubiaceae, Ixora, variasi morfologi, keragaman 
REVIEW: PRODUKSI LIMONENE MELALUI REKAYASA JALUR PENTOSA FOSFAT MENGGUNAKAN CYANOBACTERIUM Synechocystis sp. PCC 6803 Azar, Alda Wydia Prihartini; Hasna Dyah Kusumardani; Haris Maulani
Jurnal Biogenerasi Vol. 10 No. 2 (2025): Volume 10 no 2 periode februari - september 2025 ( continues)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v10i2.5344

Abstract

Limonene, a terpenoid compound found in various plants such as oranges, lemons, and mint, has numerous applications in different industrial fields, including as a fragrance, flavoring agent, and biofuel. Conventional limonene production relies on agricultural outputs vulnerable to fluctuations caused by diseases or climate change. Therefore, metabolic engineering using microorganisms offers an interesting alternative for more efficient and sustainable limonene production. This review article aims to summarize the procedures for limonene production through the modification of the pentose phosphate (PP) and methylerythritol 4-phosphate (MEP) biosynthetic pathways in the cyanobacterium Synechocystis sp. PCC 6803 to produce limonene. Limonene synthase (lims) obtained from C. limon and M. spicata plants was cloned and transformed into cyanobacteria to enhance limonene production. Experimental results showed that genes associated with the limonene biosynthesis pathway, including ribose 5-phosphate isomerase (rpi), ribulose 5-phosphate 3-epimerase (rpe), and geranyl diphosphate synthase (gpps), were successfully expressed in Synechocystis. This study demonstrates that Synechocystis can be an efficient microbial system for limonene and other isoprene compound production, offering a more stable and environmentally friendly alternative than agricultural-based production.
REVIEW: PRODUKSI LIMONENE MELALUI REKAYASA JALUR PENTOSA FOSFAT MENGGUNAKAN CYANOBACTERIUM Synechocystis sp. PCC 6803 Azar, Alda Wydia Prihartini; Hasna Dyah Kusumardani; Haris Maulani
Jurnal Biogenerasi Vol. 10 No. 2 (2025): Volume 10 no 2 periode februari - september 2025 ( continues)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v10i2.5344

Abstract

Limonene, a terpenoid compound found in various plants such as oranges, lemons, and mint, has numerous applications in different industrial fields, including as a fragrance, flavoring agent, and biofuel. Conventional limonene production relies on agricultural outputs vulnerable to fluctuations caused by diseases or climate change. Therefore, metabolic engineering using microorganisms offers an interesting alternative for more efficient and sustainable limonene production. This review article aims to summarize the procedures for limonene production through the modification of the pentose phosphate (PP) and methylerythritol 4-phosphate (MEP) biosynthetic pathways in the cyanobacterium Synechocystis sp. PCC 6803 to produce limonene. Limonene synthase (lims) obtained from C. limon and M. spicata plants was cloned and transformed into cyanobacteria to enhance limonene production. Experimental results showed that genes associated with the limonene biosynthesis pathway, including ribose 5-phosphate isomerase (rpi), ribulose 5-phosphate 3-epimerase (rpe), and geranyl diphosphate synthase (gpps), were successfully expressed in Synechocystis. This study demonstrates that Synechocystis can be an efficient microbial system for limonene and other isoprene compound production, offering a more stable and environmentally friendly alternative than agricultural-based production.
Co-Authors Aryani, Riska Desi Haris Maulani Hasna Dyah Kusumardani Kamaludin, Fuad Kusumardani, Hasna Dyah Sri Lestari