Claim Missing Document
Check
Articles

Found 11 Documents
Search

MORFOLOGI PERMUKAAN DAUN TANAMAN TERUNG (Solanum melongena L.) SEBAGAI RESPONS TERHADAP CEKAMAN KEKERINGAN Ilahi, Rizky Nanda Kurnia; Isda, Mayta Novaliza; Rosmaina, Rosmaina
Al-Kauniyah: Jurnal Biologi Vol 11, No 1 (2018): Al-Kauniyah Jurnal Biologi
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (670.312 KB) | DOI: 10.15408/kauniyah.v11i1.5662

Abstract

Abstrak Terung (Solanum melongena L.) tergolong tanaman yang sensitif terhadap kekeringan selama tahap pertumbuhan dan perkembangannya. Karakteristik stomata dan trikoma merupakan kriteria yang dapat digunakan untuk mengidentifikasi tanaman yang toleran terhadap kekeringan. Penelitian bertujuan menguji respons karakteristik anatomi daun berupa trikoma dan stomata tanaman terung terhadap cekaman kekeringan melalui empat taraf interval penyiraman. Penelitian menggunakan Rancangan Acak Lengkap melalui empat taraf interval penyiraman, yakni 3, 6, 9, dan 12 hari.  Pengaruh cekaman kekeringan terhadap morfologi permukaan daun pada terung menyebabkan terjadinya peningkatan kerapatan trikoma tiga kali lebih banyak dibandingkan dengan kontrol, penurunan ukuran lebar trikoma mencapai 59,02%, penurunan ukuran lebar stomata mencapai 78,34%, dan penurunan ukuran lebar porus stomata mencapai 80,80%. Hasil penelitian menunjukkan bahwa peningkatan jumlah trikoma dengan ukuran trikoma yang semakin kecil diduga sebagai bentuk proteksi tanaman terhadap kerusakan jaringan dan mekanisme adaptasi tanaman untuk dapat memenuhi jumlah asimilasi CO2 perluas daun yang dibutuhkan untuk fotosintesis pada kondisi kekeringan. Sensitifitas tanaman terhadap kondisi kekeringan berupa mekanisme adaptasi dengan cara memperkecil ukuran stomata dan bukaan lebar porus, sehingga laju fotosintesis tetap terjaga pada kondisi kekeringandan mekanisme tanaman menjaga efisiensi penggunaan air dengan cara mengurangi ukuran stomata dan memperkecil bukaan porus stomata.    Abstract Eggplant (Solanum melongena L.) belongs to a group of plants that are sensitive to drought (water stress) during their growth and development stages. Characteristics of stomata and trichomes are criteria that can be used to identify drought-tolerant plants. This study aims to determine the response of leaf anatomical characteristics of the eggplant as well as trichome and stomata to drought stress through four levels of watering interval. The research using completely randomized design with watering intervals of 3, 6, 9, and 12 days. The effect of drought stress on leaf surface morphology of the eggplant resulted in three times greater trichomes density than control, decreased trichomes width by 59.02%, stomata width by 73.84%, and size of stomata porch width by 80.80%.. The result was showing that increasing number of trichome with smaller trichome size was thought to be a form of crop protection against tissue damage and plant adaptation mechanism in order to meet the amount of CO2 leaf expansion assimilation required for photosynthesis in drought stress condition. The sensitivity of plants to drought stress conditions is the mechanism of adaptation by reducing the size of stomata and wide porous opening, so that the rate of photosynthesis has been maintaining in the dry conditions and the mechanism of the plant maintain the efficiency of water use by reducing the size of stomata and minimizing stomata porous opening.   Permalink/DOI: http://dx.doi.org/10.15408/kauniyah.v11i1. 5667
Penaksiran Biomassa dan Karbon Tersimpan pada Ekosistem Hutan Mangrove di Kawasan Bandar Bakau Dumai MANDARI, DESTI ZARLI; GUNAWAN, HARIS; ISDA, MAYTA NOVALIZA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Mangrove forest ecosystem has a function as an absorber of Carbon dioxide (CO2) from the air and storecarbon in the form of biomass. The research was conducted in December 2014 until January 2015, andaimed to determine the total amount of above-ground biomass and the carbon stock as well as therelation of the three conditions of the development of mangrove forests in the area of Bandar Bakau,Dumai, Riau Province. The plot was made by using transect line plot method, 50 x 50 m in size with atotal of 3 plots along the coastline. Each plot contained 5 (five) sub-plots (10 x 10 m) that randomlydetermined. The results showed that along the transect line was found 10 species of mangrove, i.e.Xylocarpus granatum, Rhizophora apiculata, Rhizophora mucronata, Bruguiera gymnorrhiza, Avicenniaalba, Avicennia marina, Sonneratia alba, Lumnitzera racemosa, Lumnitzera littorea, and Scyphiphorahydrophyllacea. The vegetation was dominated by Xylocarpus granatum with a density of 2128 trees/haand Rhizophora apiculata with a density of 1472 trees/ha. The highest total biomass and carbon stockgenerated by X. granatum with total biomass 78.6 ton/ha equivalent to 39.3 ton of C/ha. The total value ofbiomass produced from the whole plot is 115.85 ton/ha with a total carbon content stored at 57.91 tonC/ha.Key words: Above-ground Biomass, Carbon stored, Mangrove density, Xylocarpus granatum
Tingkat Kerusakan Ekosistem Mangrove di Desa Teluk Belitung Kecamatan Merbau Kabupaten Kepulauan Meranti UMAYAH, SARI; GUNAWAN, HARIS; ISDA, MAYTA NOVALIZA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The destruction of mangrove forest ecosystems in Teluk Belitung Village, Kepulauan Meranti, wascaused by various human activities such as industrial activities, illegal logging, and coastal erosion.Rehabilitation efforts was needed to preserve mangrove forests. The community involvement had animportant role in determining the success of mangrove rehabilitation. This study aimed to determine theextent of mangrove forest ecosystem destruction based on the density and mangrove forest cover.Furthermore, this research described local community participation level and their knowledge inrehabilitation efforts of mangrove forest ecosystem. This study was conducted in Teluk Belitung,Subdistrict of Merbau, Kepulauan Meranti from November 2014 to March 2015. This study usedobservation, questionnaire, and interview methods to investigate the destruction of mangrove forestsecosystem and local community involvement in mangrove forests rehabilitation. The results showed thatthe region has suffered damage to the mangrove with a total density value of 626.67 trees/ha andmangrove forest cover in all types of <50%. The level of public participation was affected by socialstatus, planning, attitudes, and community rules in Teluk Belitung.Keywords: mangrove, community, participation, rehabilitation
Induksi Tunas dari Eksplan Kotiledon dan Epikotil In Vitro Jeruk Siam (Citrus nobilis Lour.) Asal Kampar pada Media MS CAHYATI, SRI; ISDA, MAYTA NOVALIZA; LESTARI, WAHYU
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Citrus nobilis Lour. (Siam Orange) from Kampar is one of the main fruits in Riau Province that is highlyconsumed by many people, but nowadays its productivity is lower due to pests and diseases. In order tomaintain the availibility of citrus from Kampar and to conserve this plant, an effort that can be done is byusing in vitro culture with the use of a combination of growth regulator; cytokine and auxin usingcotyledons and epicotyl explant. This study aimed to determine the best explant source and to know theeffect of the concentration combination of BAP, kinetin, and NAA that optimal in inducing plant shoot ofSiam orange. This study was conducted at Laboratory of Integrated Biology, Department of Biology,Faculty of Mathematics and Natural Sciences using a completely randomized design (CRD) with variousconcentrations of treatments, and observed for 42 days. The results showed that the percentage of lifeexplants, swelling cotyledon, and epicotyl explants was 100%, the percentage of best shoot formation was60% on the epicotyls explant with 1.0 mg/l BAP + 0.5 mg/l kinetin + 0.5 mg/l NAA. The percentage ofcallus formation only found in epicotyls explants with the highest percentage (100%) at 2.0 mg/l BAP +0.5 mg/l kinetin +1.0 mg/l NAA.Keywords: Citrus nobilis Lour., cotyledons, epikotil, in vitro, shoot induction.
Induksi Tunas in vitro Jeruk Siam (Citrus nobilis Lour.) Asal Kampar pada Berbagai Konsentrasi Sukrosa FATONAH, SITI; ISDA, MAYTA NOVALIZA; LESTARI, WAHYU
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aimed to determine the most effective concentration of sucrose for a shoot induction fromcotyledon explants of Citrus nobilis from Kampar. Cotyledon explants were cultured on Murashige andSkoog (MS) medium containing sucrose at various concentrations without supplemented with growthregulators. The treatments consisted of five concentrations of sucrose, i.e. 0, 20, 30, 40, 50, 60 g /l. Theresult showed that all explants on different concentrations of sucrose treatment had the percentage ofliving and the percentage of shoot induction reached 100%. The best response for shoot induction aftereight weeks of culture was observed on MS medium supplemented with 50 g/l sucrose with the number ofshoot was 2, shoot length was 4,125 cm, and leaf number was 5,74 strands.Key words: Citrus nobilis lour., concentration of sucrose, in vitro, shoot induction
Laju Produksi Serasah Pada Dua Vegetasi Dominan Hutan Mangrove Di Desa Bukit Batu Kabupaten Bengkalis Provinsi Riau EFENDI, RANNY ARIESTA; KHAIRIJON, KHAIRIJON; ISDA, MAYTA NOVALIZA
Jurnal Riau Biologia Vol 3, No 1 (2018)
Publisher : Jurusan Biologi FMIPA Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Desa Bukit Batu, Kabupaten Bengkalis, Riau merupakan salah satu desa yang terletak di kawasanekosistem mangrove, beberapa jenis mangrove, termasuk Sonneratia sp dan Rhizophora sp ditemukan padaekosistem ini. Tujuan dari penelitian ini untuk menentukan perbedaan laju produksi serasah pada dua jenisvegetasi dominan di ekosistem mangrove.Daerah penelitian dibagi menjadi tiga zona yaitu Zona I, Zona II,dan Zona III.10 littertrap berukuran 50 cm x 50 cm dipasang disetiap zona menggunakan metode purposivesampling.Serasah yang tertampung diambil 1 (satu) minggu sekali selama 6 (enam) minggu, serasahdianalisis dengan menimbang berat kering.Parameter lingkungan yang diamati adalah suhu udara, salinitas,kelembaban, curah hujan, suhu tanah, pH tanah dan kerapatan vegetasi. Total produksi serasah tertinggididapatkan pada zona III yaitu 376,09 g/m2/minggu. Persentase produksi serasah paling tinggi pada ke tigazona adalah organ daun sebesar 75%.
The Potential of Wild Mango Leaves from Sumatera as the Immunostimulant Agent Fitmawati, Fitmawati; Juliantari, Erwina; Saputra, Agus; Sinaga, Patar; Roza, Rodesia Mustika; Isda, Mayta Novaliza
Biosaintifika: Journal of Biology & Biology Education Vol 10, No 3 (2018): December 2018
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (740.186 KB) | DOI: 10.15294/biosaintifika.v10i3.16549

Abstract

Wild Mango from Sumatera is potentially new immunostimulant. It contains mangiferin, which is potentially become the immunostimulant candidate. This study aimed to prove the immunostimulatory effect of wild mango leaves extract on white rat peritoneum fluid induced by Staphylococcus aureus bacteria. The immunostimulatory effect was determined based on the activity and capacity of macrophage phagocytosis. This study used 54 male white rats about 130 g - 290 g. Based on the results,the highest phagocytosis activity of macrophage cells was found in ethanol extract of Mangga Hutan leaves dose 2 with a percentage of phagocytosis activity was 84%. The highest phagocytosis capacity of the macrophage cells was also found in ethanol extract of Mangga Hutan leaves dose 2 with an average phagocytic capacity of 171.67 from 50 active macrophages. Results of this study indicated that wild mango leaves from Sumatera has the potential immunostimulant activity. This indicates that the wild mango have the potential for therapeutic efficacy for the prevention of degenerative diseases caused by immune deficiencies.
Respons Poliembrioni Dari Biji Duku (Lansium domesticum Corr.) yang Dibelah Tiga Secara In Vitro Rana, Syafia Diang; Dewi, Reza Puspita; Adjie, Agung Purnomo; Isda, Mayta Novaliza
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 4, No 2 (2019): June 2019
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.246 KB) | DOI: 10.24002/biota.v4i2.2472

Abstract

Duku (Lansium domesticum Corr.) adalah salah satu buah tropis bernilai ekonomis yang diminati oleh masyarakat dengan rasa manis dan bernilai gizi tinggi. Biji duku memiliki sifat poliembrioni yang akan menghasilkan tanaman lebih banyak dan seragam sesuai dengan induknya. Perbanyakan dengan teknik in vitro akan menghasilkan tanaman dalam jumlah yang banyak dalam waktu yang relatif singkat dibandingkan secara konvensional. Tujuan penelitian yaitu untuk mengetahui respon poliembrioni biji duku yang dibelah tiga secara membujur  dengan penambahan BAP (Benzyl Amino Purine)  secara in vitro. Penelitian ini menggunakan Rancangan Acak Lengkap dengan konsentrasi BAP = 0, 1, 3, 5 dan 7 mg/L BAP. Hasil penelitian menunjukkan bahwa waktu muncul tunas tercepat yaitu 2,20 MST pada konsentrasi 1 mg/L BAP. Jumlah tunas tertinggi pada perlakuan 3 mg/L BAP yaitu 2,00 tunas, namun perlakuan pemberian konsentrasi BAP belum mampu meningkatkan jumlah tunas.
PEMBENTUKAN NODUL DARI BIJI MANGGIS (Garcinia mangostana L.) ASAL BENGKALIS PADA MEDIA WPM DENGAN PENAMBAHAN BAP DAN MADU Hariono, Eko; Isda, Mayta Novaliza; Fatonah, Siti
Al-Kauniyah: Jurnal Biologi Vol 11, No 1 (2018): Al-Kauniyah Jurnal Biologi
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.258 KB) | DOI: 10.15408/kauniyah.v11i1.5422

Abstract

Abstrak Manggis (Garcinia mangostana L.) asal Bengkalis merupakan salah satu buah tropis yang menjadi komoditas ekspor Provinsi Riau dengan keunggulan dapat hidup di tanah gambut, tanah rawa, dan tanah masam. Pembentukan nodul tanaman manggis merupakan tahapan awal perbanyakan tunas pada kultur in vitro. Penelitian ini bertujuan untuk menentukan konsentrasi Benzilaminopurine (BAP) dan madu, baik tunggal maupun kombinasi, pada Woody Plant Medium (WPM) dalam pembentukan nodul dari eksplan biji manggis yang dibelah tiga secara membujur. Penelitian ini menggunakan Rancangan Acak Kelompok dengan menggunakan konsentrasi BAP 0, 5, dan 7 mg/L dan madu 0, 3, 6, dan 9 mL/L, baik tunggal maupun kombinasi. Hasil percobaan menunjukkan bahwa persentase pembentukan nodul paling tinggi (100%) diperoleh dari perlakuan 5 mg/L BAP. Perlakuan pemberian konsentrasi BAP dan madu, baik tunggal maupun kombinasi, pada media WPM, tidak mampu mempercepat waktu muncul nodul. Jumlah nodul terbanyak di 40 hari setelah tanam pada perlakuan 7 mg/L BAP yang disertai 3 mL/L madu adalah 25,0 nodul/biji.   Abstract Mangosteen (Garcinia mangostana L.) from Bengkalis in origin is one of the tropical fruit that became an export commodity of Riau Province, with the advantage of living in peat soil, swamp, and acidic soil. The formation of nodules is an early stage of shoot propagation in vitro cultures. This study aims to determine the concentration of BAP (Benzilaminopurine) and honey, either single or combination, in Woody Plant Medium (WPM) in the formation of nodules from mangosteen seed explants. This research employed Randomized Block Design to test the variation of BAP in the concentration of 0, 5, and 7 mg/L and honey in the concentration of 0, 3, 6, and 9 mL/L, either single or a combination. The results showed that the highest percentage of nodule formation (100%) was obtained from the treatment 5 mg/L of BAP. The treatment of BAP and honey, either single or combination, on WPM media, was unable to accelerate the timing of nodules. The highest number of nodules in 40 days after planting in the treatment of 7 mg/L of BAP with 3 mL/L of honey was 25.0 nodules/seed.  Permalink/DOI: http://dx.doi.org/10.15408/kauniyah.v11i1.5422 
Respons Pembentukan Kalus Daun Pegagan (Centella asiatica (L.) Urb.) dengan Penambahan Naphtalene Acetic Acid dan Benzyl Amino Purin Secara In Vitro Anwar, Nurhayati; Isda, Mayta Novaliza
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 5, No 3 (2020): October 2020
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v5i3.3232

Abstract

AbstractGotu kola (Centella asiatica (L.) Urb.) is a medicinal plant that contains chemical compounds as triterpenoids and saponins.  The chemical compounds can be produced quickly using in vitro callus induction.  The callus is a very important source of planting material in regenerating new plants.  Therefore, by inducing callus the need for seedling in large quantities achievable in a short time.  This study aimed to determine the effect of the BAP single and combination of BAP and NAA, and determine the effective concentration of a BAP single and combination of BAP and NAA on callus induction of gotu kola leaf explant using in vitro method.  This study used Complete Randomized Design (CRD) which consisted of nine treatments (control, 1 mg/l BAP, 2 mg/l BAP, 1 mg/l BAP + 0,1 mg/l NAA, 2 mg/l BAP + 0,1 mg/l NAA, 1 mg/l BAP + 0,3 mg/l NAA, 2 mg/l BAP + 0,3 mg/l NAA, 1 mg/l BAP + 0,5 mg/l NAA, 2 mg/l BAP + 0,5 mg/l NAA) with five replication for each treatment. Data obtained from observation were analyzed descriptively.  The results of this research showed that a single BAP and combine of BAP and NAA were able provide a response in the form of colour, swelling and callus formation.  The best concentration that from the most optimal callus and the highest callus growth (+++) is the treatment of P5 ( 1 mg/l BAP + 0,3 mg/l NAA) which is equal to 100% with the caracteristics of green callus and callus covering the entire surface of explants.  All the callus produced was textured compact, while the colour of the callus was green and brown.Keywords: Gotu Kola (Centella asiatica (L.) Urb.), Callus, BAP, NAA AbstrakPegagan (Centella asiatica (L.) Urb.) merupakan tanaman berkhasiat obat yang mengandung berbagai bahan aktif seperti triterpenoid dan saponin.  Bahan aktif tersebut dapat diproduksi dengan cepat menggunakan teknik induksi kalus secara in vitro.  Kalus merupakan sumber bahan tanam yang sangat penting dalam meregenerasi tanaman baru.  Oleh karena itu, dengan menginduksi kalus kebutuhan bibit dalam jumlah banyak dapat dicapai dengan waktu singkat.  Penelitian ini bertujuan untuk mengetahui pengaruh penambahan BAP tunggal dan kombinasi BAP dan NAA, dan menentukan konsentrasi terbaik dari penambahan BAP tunggal dan kombinasi BAP dan NAA terhadap pembentukan kalus dari eksplan daun pegagan secara in vitro. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri atas 9 (sembilan) perlakuan (kontrol, 1 mg/l BAP, 2 mg/l BAP, 1 mg/l BAP + 0,1 mg/l NAA, 2 mg/l BAP + 0,1 mg/l NAA, 1 mg/l BAP + 0,3 mg/l NAA, 2 mg/l BAP + 0,3 mg/l NAA, 1 mg/l BAP + 0,5 mg/l NAA, 2 mg/l BAP + 0,5 mg/l NAA) dan masing-masing diulang sebanyak 5 (lima) ulangan.  Data hasil pengamatan yang diperoleh dibahas secara deskriptif karena tidak semua ulangan menghasilkan kalus.  Hasil penelitian menunjukkan bahwa pemberian perlakuan BAP tunggal dan kombinasi penambahan BAP dan NAA mampu memberikan respons pada eksplan daun pegagan berupa perubahan warna, pembengkakan dan terbentuknya kalus.  Konsentrasi terbaik yang mampu membentuk kalus paling optimal dan pertumbuhan kalus paling tinggi (+++) yaitu perlakuan P5 ( 1 mg/l BAP + 0,3 mg/l NAA) yakni sebesar 100% dengan ciri-ciri kalus berwarna hijau dan kalus menutupi seluruh permukaan eksplan.  Semua kalus yang dihasilkan bertekstur kompak, sedangkan warna kalus yang dihasilkan hijau dan coklat.Katakunci: Pegagan (Centella asiatica (L.) Urb.), Kalus, BAP, NAA