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All Journal HAYATI Journal of Biosciences Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences METAMORFOSA Journal of Biological Sciences Bioscience Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Biologi Universitas Andalas Buletin Kebun Raya BERITA BIOLOGI Buletin Ilmiah Nagari Membangun Floribunda Serambi Biologi International Journal of Agricultural Sciences Berkala Penelitian Hayati Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) Makara Journal of Science Eduvest - Journal of Universal Studies
Syamsuardi Syamsuardi
Andalas University
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RASIO SEKS JERNANG (Daemonorops draco (Willd.)Blume) PADA POPULASI ALAMI DAN BUDIDAYA: IMPLIKASI UNTUK PRODUKSI BIJI Asra, Revis; Syamsuardi, Syamsuardi; Mansyurdin, Mansyurdin; Ridho Witono, Joko
Buletin Kebun Raya Vol 15, No 1 (2012): Buletin Kebun Raya Vol. 15 (1) Januari 2012
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Jernang (Daemonorops draco (Willd.) Blume) is a dioecious rattan species that produces resin on female individuals. The sex of jernang can only be identified from its inflorescences morphology. Sex survey was conducted in 5 populations of  jernang, 3 populations of which in the Bukit Tigapuluh National Park (BTNP), 1 population in the secondary forest in Jambi province and 1 population in the area of rubber plantation in Jambi province. Chi-Squared test on the sex ratio of  jernang showed that the ratio of the male to female in their natural habitat (Bengayoan and Tebo, 2 parts of the BTNP ecosystem and the Sepintun secondary forest) was distorted from the normal ratio of 1:1, while the cultivated jernang in Nunusan population (BTNPT) and Mandiangin were not significantly different from the normal sex ratio of 1:1. Female individuals from the cultivated population in the Mandiangin (planted in 1997) has an average number of stems per clump more on individual males (27.12) than females (26.92). The result of this study indicated that the D. draco has a good reproductive strategy and thus suitable for cultivation.
KOMPOSISI JENIS DAN CADANGAN KARBON DI HUTAN TROPIS DATARAN RENDAH, ULU GADUT, SUMATERA BARAT [Species Composition and Carbon Stock in Tropical Lowland Forest, Ulu Gadut, West Sumatra] Suwardi, Adi Bejo; Mukhtar, Erizal; Syamsuardi, Syamsuardi
BERITA BIOLOGI Vol 12, No 2 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i2.529

Abstract

Tropical lowland forest is one type of forest ecosystem that dominated most of Sumatra areal and retained carbon terrestrial within.Tropical lowland forest has the highest risk of damage than other forest types. The aimed of study is to determine species composition and carbon stock in tropical lowland forest, Ulu Gadut, West Sumatra. This study was conducted on June to October 2012 at 1 ha Pinang-Pinang permanent plot. Tree biomass was measured by using the non destructive sampling method. All trees with stem diameter at breast height (dbh) = 8 cm were measured diameter and were recorded the species of trees.As much as 852 individuals of trees, which were consisting of 45 families and 155 species with DBH = 8 cm were found in Pinang-Pinang permanent plot. Nephelium juglandifolium Blume, Swintonia schwenckii (T. & B.) Kurz,Syzygium sp.,Microcos florida (Miq.) Burret, Palaquium sp.,Cleistanthus glandulosus Jabl., Hopea dryobalanoides Miq., Mastixia trichotoma Blume, Calophyllum soulattri Burm. f. and Shorea maxiwelliana King were dominant based on -1 -1 Importance Value Index(IVI). Trees biomass and carbon stock in the study site are around 482.75 ton ha and 241.38 ton C ha respectively.
STUDI ETNOBOTANI JENIS REMPAH YANG DIGUNAKAN DALAM BUMBU MASAKAN TRADISIONAL ADAT DI KERAJAAN ROKAN KABUPATEN ROKAN HULU, RIAU Tribudiarti, Melly; Syamsuardi, Syamsuardi; Nurainas, Nurainas
BERITA BIOLOGI Vol 17, No 2 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4664.893 KB) | DOI: 10.14203/beritabiologi.v17i2.2882

Abstract

Rokan Kingdom was a small kingdom that is now located in Rokan Hulu regency of Riau Province. This region is bordered by North and West Sumatra Province to the north. Rokan Kingdom has a diversity of Indigenous cultures and traditional as an influence of Malay, Minangkabau, Mandailing and Java ethnics. Cultural differences effect people to use variety of herbs as spice in cooking. This study aims to determine the species of plants used as spices in the traditional cuisine within Rokan Palace, Riau and to understand the use value (UV) of each plant. A field survey and interviews were conducted to obtain plant materials and determine its utilization. The voucher specimen stored at Andalas University Herbarium (ANDA), Padang, West Sumatera. Total species obtained in this study is 29 species from 17 families. All of collected plants are used in 16 traditional cuisines. Allium cepa (shallot) has the highest UV = 0.91 as the most common species used as a traditional cooking spice in Rokan Palace.
The Diversity of Endophytic Bacteria from the Traditional Medicinal Plants Leaves that Have Anti-Phytopathogens Activity Zam, Syukria Ikhsan; Agustien, Anthoni; Syamsuardi, Syamsuardi; Djamaan, Akmal; Mustafa, Irfan
Journal of Tropical Life Science Vol 9, No 1 (2019)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.09.01.8

Abstract

Endophytic bacteria live in plant tissues which utilized in plant protection against phytopathogens. This study aims to investigate the diversity of endophytic bacteria from the leaves of traditional medicinal plants that has anti-phytopathogens properties. Isolation of endophytic bacteria was done by spread plate method. The bacteria were characterised by Gram staining and the 16S rRNA gene analysis. Further screening of anti-phytopathogen activity used disc diffusion method for Ralstonia solanacearum, Xanthomonas campestris, Fusarium oxysporum, and Sclerotium rolfsii. All togethers, sixteen isolates of endophytic bacteria from the leaves of eight medicinal plants species were obtained. Fourteen isolates had an anti-phytopathogen (with eight isolates against R. solanacearum, seven isolates against X. campestris, nine isolates against F. oxysporum, and five isolates against S. rolfsii). From the 14 isolates identified, phylum Firmicutes were dominant (64.3%), followed by Proteobacteria (28.6%), and Actinobacteria (7.1%). Phylum Firmicutes consists of Bacillus indicus (BJF1, TCF1, and MCF2), Bacillus pumilus (CAF4), Bacillus sp. (CAF1), Bacillus subtilis (AAF2, MCF1, CAF3, and MCF3); phylum Proteobacteria consists of Pantoea agglomerans (CAF2), Pantoea stewartii (AAF4), Pseudomonas oryzihabitans (AAF3), and Pseudomonas psychrotolerans (AAF1); and phylum Actinobacteria consists of Kocuria kristinae (CSF1).
POLLINATION AND BREEDING SYSTEM OF RANUNUCLUS JAPONICUS THUNB. IN JAPAN Syamsuardi, Syamsuardi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 1 (2003): February 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.364 KB) | DOI: 10.24002/biota.v8i1.2788

Abstract

Penelitian tentang penyerbukan dan sistem reproduksi Ranunculus japonicus telah dilakukan di kebun botani Universitas Osaka City, Katano, Osaka, Japan. Hasil penelitian menunjukkan bahwa putik R. japonicus lebih dahulu masak daripada benang sarinya (protogyny). Pada tumbuhan ini terjadi ketidakcocokan silang sendiri (self-incompatible). Tumbuhan ini tidak mengalami penyerbukan sendiri (selfing) dan juga tidak membentuk biji tanpa pembuahan (agamosper my), tetapi melakukan penyerbukan silang (out-crossing) dan membutuhkan perantara (pollinator) untuk pembentukan bijinya.
Nesting Sites Apis cerana Fabr. (Hymenoptera: Apidae) in Two Different Altitutes of Polyculture Plantations in West Sumatera . JASMI; SITI SALMAH; . DAHELMI; . SYAMSUARDI
HAYATI Journal of Biosciences Vol. 21 No. 3 (2014): September 2014
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1046.619 KB) | DOI: 10.4308/hjb.21.3.135

Abstract

Natural cavities in polyculture plantations are important for the conservation of honeybees. This study was aimed to determine the diversity, nest sizes, and fluctuations in the use of sites for nesting by Apis cerana Fabr. in polyculture plantations in two altitudes in West Sumatra. A census method was used to obtain the data variables in 10 plantations (five locations for each altitute). Polyculture plantations used as the study sites were  dominated by coconut in lowland areas and coffea in highland areas. The results showed that nesting sites of Apis cerana were found amongst 18 species of plants belonging to 15 families (12 species in lowlands and seven species in highlands). Most of the nests were placed on Cocos nucifera (coconut) treesin lowland sites, and on Erythria variegata (dadap) in highland sites. Nests were also found to be located mostly in the cavities of trees with  diameter 21-60 cm. Nest entrances were located at 228.31 cm above ground surface (ags) in highland and at 116.04 cm agsin lowlands. The nest entrances in highlands measured 12.21 by 3.73 cm (height and width), and in the lowlands 14.93 by 7.36 cm. The percentage of tree cavities used for nesting was statically higher in lowland (40.73%) compared to high land (17.86%), but it fluctuated very slightly in both high or lowland areas during observation. The percentage of trees with nests decreased in December and January but increased in February, with the same patterns found in both  high and lowlands. Our research suggests that higher tree diversity in polyculture plantations promotes increased use by honeybees for nesting. Thus, the more tree diversity in polyculture plantations the better it could conserve natural honey bees populations.
THE EFFECT OF TEMPERATURE ON THE ACTIVITIES OF AMOBIL XILANASE ENZYMES IN THE PAPER BIOBLEACHING PROCESS (PULP) Irdawati Irdawati; Fauzana Ahmad; Syamsuardi Syamsuardi; Agustien Agustien; Y Rilda
Serambi Biologi Vol 5, No 2 (2020): Serambi Biologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/6023RF00

Abstract

Abstrak. Enzim xilanase merupakan enzim extraseluler yang mampu menghidrolisis xilan menjadi xilosa. Isolat SSA 2 merupakan isolat dari bakteri termofilik hasil isolasi dari air panas sapan sungai aro, yang memiliki kemampuan menghasilkan enzim xilanase. penggunaan xilanase merupakan salah satu alternative mengurangi pemakain clorin dalam proses pemutihan pulp. xilanase diamobilisasi dengan menggunkan NA alginate. pulp difermentasi dengan suhu 50ºC, 55ºC, 60ºC, 65ºC, 70 ºC, 75 ºC, 80ºC, selama 6 jam, suhu optimum yang menghasilkan bilangan kappa terendah dan aktivitas enzim yang tertinggi pada suhu 60ºC.
The Thermophilic Bacterial Growth Curve Irdawati Irdawati; Ilsa Septia Putri; Syamsuardi Syamsuardi; Anthoni Agustien; Yetria Rilda
Bioscience Vol 2, No 2 (2018): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (577.485 KB) | DOI: 10.24036/0201822100819-0-00

Abstract

Thermophilic bacteria are bacteria that can produce thermostable enzymes and used in various industries. Thermostable enzymes that can be produced by thermophilic microorganisms one of them is xylanase enzyme. Xylanase produced by microbes has optimum temperature characteristics and more diverse optimum pH on various substrates, which will affect the activity of the resulting xylanase enzyme. The influence of temperature greatly determines the activity of the enzyme at the time of catalyzing a reaction. At optimum pH conditions, the enzyme has an active side conformation that is substrate-like so that it can form a complex of appropriate enzymes and produce the product to its full potential. One of the thermophilic bacterial habitats of hot springs in West Sumatera is the Aro Sapan River hot spring located in Koto Parik Gadang Subdistrict in Ateh, South Solok District. The Saw Aro River hot spring has a temperature of 75 ° C and is pH 8 or alkaline. The aim to this research was to know the profile of the growth of thermophilic bacteria. This research is a descriptive method. The data obtained were analyzed descriptively. The conclusion is the best activity of xylanase thermophilic bacteria was at the sixth time incubation.
Kajian Fenologi Perbungaan Anggrek Merpati (Dendrobium crumenatum Sw.) di Limau Manis Padang, Sumatra Barat Suci Rahma Nita; Syamsuardi Syamsuardi; Mansyurdin Mansyurdin
Jurnal Biologi Universitas Andalas Vol 4, No 3 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.3.%p.2015

Abstract

Pigeon orchid is one of epiphytic wild orchids and very important species in the genus Dendrobium. Flowering phenology of this species is still unclear. The purpose of this study was to describe flowering phenology of pigeon orchid. The study was conducted in Limau Manis Padang, West Sumatera and has been done from May until October 2015. Some aspects of flowering phenology such as the phase of flowers, flowering period, rainy time and stigma receptivity were observed. The results of this research  indicated that pigeon orchid flowering was induced by dicreasing of the temperature after rain. Flowers development consist of six phases from bud phase to be wilt with a span of 14 days and sometime stigma has begun receptive before the anthesis but optimal stage of stigma receptivity pigeon orchid occurs during anthesis.Key word: Phenology, pigeon orchid, stigma reseptivity.
Ethnomedicinal Study of the Use of Zingiberaceae by the Mentawai People in Siberut, West Sumatra, Indonesia Nurainas Nurainas; Ratna Sulekha; Zuhri Syam; Samantha Lee; Syamsuardi Syamsuardi
Jurnal Biologi Universitas Andalas Vol 9, No 1 (2021)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.9.1.25-29.2021

Abstract

The Mentawai archipelago is situated to the west of mainland Sumatra and is part of the West Sumatra province. The Mentawai people are indigenous to this archipelago and are well known for their traditional healing practices performed by their Sikerei healers. Only a few studies on the traditional plant medicines of the Mentawai people have been published, which mostly suggest that Zingiberaceae is one of the most widely used families. This study examines the indigenous knowledge of Zingiberaceae by the Mentawai people living in Siberut. Field surveys were undertaken at four locations in the island where the Sikerei healers were interviewed directly to obtain information about medicinal treatments using plants from the Zingiberaceae family. Voucher specimens were collected, dried and deposited at the Herbarium of Andalas University (ANDA), Padang, West Sumatra. The study suggests that at least 32 Zingiberaceae species are used in the Mentawai’s traditional medicines. The floristic aspects, the plant part used, and the type of disease treated are discussed.
Co-Authors - Nur'aini - Windahayati . Chairul . JASMI . Mansyurdin . Yastori Agung Putra Utama Agustien Agustien Akmal Djamaan Anthoni Agustien Anzharni Fajrina Ardinis Arbain Aulia Muhradi Delta Azwar Rasyidin Chairul Dahelmi Dahelmi Dina Marvianti Eni Kamal Erizal Mukhtar Esa De Safela etti sartina siregar Fauzana Ahmad Febry Fihendra Musa Ferdinand Susilo Gama Ilham Ilsa Septia Putri Irdawati Irdawati Irdawati Irdawati irfan mustafa Irfan Mustafa Joko Ridho Witono Joko Ridho Witono La Ode Muh Munadi Linda Agustin Meitri Hartika Melly Tribudiarti Muhammad Ismail Syahputra Nadra Khairiah Nurainas Nurainas Nurainas, Nurainas Nursahara Pasaribu Rahmi Hulyati Ratna Sulekha Revi Novila Shinta Revis Asra Rikinovtian Burlis Rio Febrianto Rizaldi Rizaldi Rizky Paramita Mukhti Samantha Lee SITI SALMAH Sosmiarti Sosmiarti Suci Putri Arma Suci Rahma Nita Suwardi, Adi Bejo Suwirmen, Suwirmen Syukria Ikhsan Zam Syukria Ikhsan Zam Tesri Maideliza Titi Lestari Tri Susanti Tribudiarti, Melly Weni Yuliani Y Rilda Yetria Rilda Yulia Sandri Yuliza Rahma Zola Anjelia Putri Zuhri Syam ZURIANA SIREGAR Zuriana Siregar