Showing papers in "Biodiversitas in 2000"
TL;DR: In this paper, the diversity of epiphyte species at the stand of puspa trees (Schimawallichii (D.C.) Korth.) in Cemoro Sewu and Cemaro Kandang of mount Lawu, and the distribution and cover abundance of the species based on its location from the land surface.
Abstract: The objectives of the research were to know: (1) the diversity of epiphyte species at the stand of puspa trees (Schimawallichii (D.C.) Korth.) in Cemoro Sewu and Cemoro Kandang of mount Lawu, and (2) the distribution and cover abundance of the species based on its location from the land surface. The research objects were all species of epiphyte plants on the stand of puspa trees. The procedures of data collection were including species collection in the field, make up herbariums, observation of epiphyte vegetation using transect method and morphology observation in the laboratory. The results show that in the south slope of the mount Lawu were found 23 species of epiphyte consisting 4 species of lichenes, 2 species of Fungi, 3 species of Bryophyte, 10 species of Pterydophyte, 2 species of Orchidaceae and 2 species of liana. The species with the highest density was Bryophyte, and the highest diversity was Pterydophyte. The height of the trees affects the distribution, diversity and density of the epiphyte plants.© 2000 Jurusan Biologi FMIPA UNS Surakarta
Key words: Schima wallichii (D.C.) Korth., mount Lawu, biodiversity, epiphyte plant.
10 citations
TL;DR: The objectives of the study were to know the morphological variation of salak-plants (Salacca zalacca (Gaert.) Voss.
Abstract: The objectives of the study were to know the morphological variation of salak-plants (Salacca zalacca (Gaert.) Voss. and their relationship. The study was conducted in May to April 2000, at Turi and Pakem of Sleman district, Yogyakarta. Samples were randomly taken, 5 plants of each variety were studied their morphological characters such as stem, leaf, flower and fruit. The data collected were then analyzed descriptive comparatively and their relationships were then determined. The result of the study indicate that there were at least 8 varieties of salak at Sleman district, green-, black-, yellow-, manggala-, red-yellow-, golden-, red-, and red-black pondoh. Morphological differences among varieties were markedly different. The closest relationship was found between variety of red-black- and black pondoh, while the farthest relationship among the varieties was manggala pondoh.© 2000 Jurusan Biologi FMIPA UNS SurakartaKey words: Salacca zalacca (Gaert.) Voss.), morphology, variety.
8 citations
TL;DR: In this paper, the variability of morphological characters of genus Ipomoea, including coefficient variance and phylogenetic relationships, was analyzed and a phylogenetic relationship was determined by clustering association coefficient.
Abstract: The objective of this research was to find out the variability of morphological characters of genus Ipomoea, including coefficient variance and phylogenetic relationships. Genus Ipomoea has been identified consisting of four species i.e.Ipomoea crassicaulis Rob, Ipomoea aquatica Forsk., Ipomoea reptans Poir and Ipomoea leari. Four species of the genus took from surround the lake inside the campus of Sebelas Maret University, Surakarta. Comparison of species variability was based on the variance coefficient of vegetative and generative morphological characters. The vegetative characters observed were roots, steams and leaves, while the generative characters observed were flowers, fruits, and seeds. Phylogenetic relationship was determined by clustering association coefficient. Coefficient variance analysis of vegetative and generative morphological characters resulted in several groups based on the degree of variability i.e. low, enough, high, very high or none. The phylogenetic relationship showed that Ipomoea aquatica Forsk. and Ipomoea reptans Poir. have higher degree of phylogenetic than Ipomoea leari and Ipomoea crassicaulis Rob.© 2000 Jurusan Biologi FMIPA UNS SurakartaKey words: Ipomoea, morphological characters, coefficient variance, phylogenetic relationships
8 citations
TL;DR: Electrophoretic examinations confirmed that morphologically distinct species was not supported by the isozyme data, thus the variation found in certain population was mainly influenced by the environmental conditions, and therefore could not be considered as taxonomically distinct.
Abstract: The main purposes of this research were to investigate whether the two distinct types of the morphological characterof Ranunculus triplodontus were genetically controlled or environmental influence. In order to prove the above,electrophoretic examinations were carried out employing for four enzyme systems. The medium support of polyacrilamide was chosen. The samples were collected from seven populations around central plateau and the leaves were used as the isozyme data. The result indicated that variation occurred in certained populations. However, this isozyme data were not able to separate the two types of R. triplodontus into different species. Based on the cluster analysis showed that three groups of seven populations of R. triplodontus were appeared. This research confirms that morphologically distinct species was not supported by the isozyme data, thus the variation found in certain population was mainly influenced by the environmental conditions, and therefore could not be considered as taxonomically distinct.© 2001 Jurusan Biologi FMIPA UNS SurakartaKey words: Ranunculus triplodontus, isozyme.
5 citations
TL;DR: In this article, the authors investigate structure of the community of soil macrofauna from different stages of the age of sengon's (Paraserianthes falcataria) stand in wet season of year 2000.
Abstract: Soil fauna have important roles on increasing and maintaining soil productivity through it's function on organic decomposition processes, and optimizing physics, chemist and biology of soil characters. The research was conducted to investigate structure of the community of soil macrofauna from different stages of the age of sengon's (Paraserianthes falcataria) stand in wet season of year 2000. Pit fall trap and hand-shorting methods were used to catch soil macrofauna. Sampling was done on 8 different age stages (year) of sengon plant each with triplicate repetition. Twenty-seven macrofauna species in the soil and 26 macrofauna species in soil surface were found in this study. Those species belong to the phylum of Mollusc, Annelid and Arthropod. Pontoscolex sp and Lobopelta ocellifera were species that having high important value. Similarities analysis resulting in an index of 65% indicating low level of diversity differences among soil macrofauna from different ages of the sengon stand. Simple correlation analysis indicates that macrofauna diversity in the soil was closely related with soil organic content, domination of ground vegetation and soil humidity; while macrofauna diversity of soil surface was closely related with the level of light penetration.
3 citations
TL;DR: Investigate polymorphisms in the growth hormone gene in the composite and purebred Hereford herds from the Wokalup selection experiment, compare genetic diversity in thegrowth hormone gene of the breeds, sequencing and compare the sequences of growth hormone loci between composite andpurebred Here Ford herds with published sequence from Genebank.
Abstract: A total of 194 Hereford and 235 composite breed cattle from Wokalup Research Station were used in this study. The aims of the study were to: Investigate polymorphisms in the growth hormone gene in the composite and purebred Hereford herds from the Wokalup selection experiment, compare genetic diversity in the growth hormone gene of the breeds, sequencing and compare the sequences of growth hormone loci between composite and purebred Hereford herds with published sequence from Genebank. The genomic DNA was extracted using Wizard genomic DNA purification system from Promega. Two fragments of growth hormone gene were amplified using PCR and continued with RFLP. Each genotype in both loci was sequenced. PCR products of each genotypes were cloned into PCR II, transformed, colonies selection, plasmid DNA extraction continued with cycle sequencing. Polymorphisms were found in both breeds of cattle in both loci of GH-L1 and GH-L2 of the growth hormone gene by PCR-RFLP analysis. Sequencing analysis confirmed the RFLPs data, polymorphism detected using AluI at GH-L1 is due to substitution between leusin/ valine at position 127, while polymorphism at the MspI restriction site was caused by transition of C to T at +837 position. © 2000 Jurusan Biologi FMIPA UNS Surakarta
3 citations
TL;DR: In this article, the taxonomic structure of the genus Zingiber based on cytological characters such as ratio of number, shape and size of chromosome was studied. But the results of the study indicate that the number of chromosomes of all species studied were the same, 2n=32.
Abstract: The objective of the study was to know the taxonomic structure of the genus of Zingiber based on cytological characters such as ratio of number, shape and size of chromosome. Zingiber specimens were mainly from Bogorbotanical garden. There were seven species studied, Z. amaricans Nor., Z. aromaticum Val., Z. cassumunar Roxb., Z.gramineum Bl., Z. officinale Roxb., Z. ottensii Val. and Z. zerumbet (L.) J.E. Smith. Z. officinale (local name: Jahe)consinsting of 4 varieties, big ginger (jahe gajah), red ginger (jahe merah), small ginger (jahe emprit) and blue-darkbrowny ginger (jahe wulung). Species identification was based on the literature such as of Backer and Bakhuizen van den Brink (1968), Holttum (1950), and Burkill (1935). Semi permanent squash method using acetoorcein dye was used to prepare the sample (Darnaedi, 1991; Okada, 1981; Robert and Short, 1979). The results of the study indicate that the number of chromosomes of all species studied were the same, 2n=32. The length size of the first chromosome pair was about 2I¼m. The shape of the chromosomes was mostly metacentric. Length and shape of each pair of chromosomes were hard to be determined accurately using this method, so that the chromosomal karyotype map unable to be constructed in this study. Giemsa C-banding method might be used to solve theproblems.© 2000 Jurusan Biologi FMIPA UNS Surakarta
2 citations
TL;DR: A lot of modern taxonomic data such as palynology, cytotaxonomy, chemical constituent, isozyme and DNA sequencing were used recently as discussed by the authors and more data used would result in more validity and give better clarification of taxonomic status.
Abstract: Modern taxonomy has two approaches, i.e. classical and experimental taxonomy. Classical taxonomy uses morphological characters, while experimental taxonomy uses broader methods including chemistry, physics and mathematics, in the form of laboratory data that are revealed together with the progress of optical technique (microscope), chemistry methods (chromatography, electrophoresis), etc. Modern taxonomy tends to use series of interrelated data. More data used would result in more validity and give better clarification of taxonomic status. A lot of modern taxonomic data such as palynology, cytotaxonomy (cytology), chemical constituent (chemotaxonomy), isozyme and DNA sequencing were used recently.© 2001 Jurusan Biologi FMIPA UNS SurakartaKeywords: modern taxonomy, palynology, cytotaxonomy, chemical constituent, isozyme.
1 citations
TL;DR: The aims of the research were to know the existence of the Nepenthes at mount Merbabu, variations of its morphology, associated plants, and ecological conditions, and to study this unique plant that was categorized as conserved plant by Indonesian government.
Abstract: The aims of the research were to know the existence of the Nepenthes at mount Merbabu, variations of its morphology, associated plants, and ecological conditions. Nepenthes are one of plants that were categorized as conserved plant by Indonesian government as indicated in PPRI No. 7/1999. Many researchers attracted to study this unique plant since it’s distinct feature and the way to get nutrient by trapping insects at its sac. Samples were taken randomly along the path for climbing from Selo, Boyolali to the top of the mountain between April to May 2000. The results show that the plants were found at the altitude of around 1500 to 2000 tsl. There were two forms of the sacs, long and short at the same individual plants. The plants grow coiling on Myristica trees and shrubs of Thunbergia fragrans Roxb., and also could grow at the stoned-soil.© 2000 Jurusan Biologi FMIPA UNS SurakartaKey words: Nepenthes, morphology, ecology
1 citations