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All Journal Biodiversitas Journal of Biological Diversity
Mohammad Basyuni
Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara. Jl. Tri Dharma Ujung No. 1, Medan 20155, North Sumatra, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Genetic diversity and structure of Ganoderma boninense isolates from oil palm and other plantation crops AGUSTIAMAN PURBA; RAHMAH HAYATI; LOLLIE A.P. PUTRI; DIANA CHALIL; INDRA SYAHPUTRA; Mohammad Basyuni
Biodiversitas Journal of Biological Diversity Vol. 21 No. 2 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d210204

Abstract

Abstract. Purba A, Hayati R, Putri LAP, Chalil D, Afandi D, Syahputra I, Basyuni M. 2020. Genetic diversity and structure of Ganoderma boninense isolates from oil palm and other plantation crops. Biodiversitas 21: 451-456. Oil palm is an economically important plant, which one of the most important sources of vegetable oil in the world. However, oil palm plantation and other crops face the treat basal stem rot (BSR) disease by Ganoderma boninense. A study on genetic diversity and structure of G. boninense is therefore needed in order to formulate improved control strategies for this disease. This work aimed to analyze the genetic diversity and structure of the G. boninense isolates derived from different hosts, 131 oil palm (Elaeis guineensis), six rubber (Hevea brasiliensis), three coconuts (Cocos nucifera), and three lontar palm (Borassus flabellifer). Genetic diversity and population structure of G. boninense isolates were investigated using six SSR markers with GenAlex 6.502 software. Results showed that several microsatellite loci indicated specific primary success rates, such as KT124402, KT124399, and KT124394, depicting high polymorphism content (>75%). This result suggested that these markers were equally effective in determining the polymorphisms of G. boninense isolates. A hierarchical analysis of molecular variance (AMOVA) revealed that genetic diversity mostly found among individuals within a population (88%), then among populations (8%), and within individuals (4%).. Phylogeny analysis showed two clusters of Ganoderma isolates. which was considered variation as dissimilar across with origin. The present study indicated that G. boninense from oil palm was predominantly comprised of a genetically distinct individual.
Drought tolerance selection of GT1 rubber seedlings with the addition of polyethylene glycol (PEG) 6000 SYARIFAH AINI PASARIBU; Mohammad Basyuni; EDISON PURBA; YAYA HASANAH
Biodiversitas Journal of Biological Diversity Vol. 22 No. 1 (2021)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d220148

Abstract

Abstract. Pasaribu SA, Basyuni M, Purba E, Hasanah Y. 2021. Drought tolerance selection of GT1 rubber seedlings with the addition of polyethylene glycol (PEG) 6000. Biodiversitas 22: 394-400. Tolerance of the rootstock of rubber to drought stress is not optimal. The root system can therefore be used as an indicator of drought tolerance to inhibit the growth of the plant. A good root system of rubber rootstocks is thought to help the plants acquire greater resistance to drought stress. Polyethylene glycol 6000 osmotic solution controls the water potential in the growing medium. This study aimed to analyze the effect of PEG 6000 osmotic solution (0%; 7.5%; and 15% concentration) on rubber seedlings leading to the development of morphological characters and sensitivity index. GT1 (Gondang Tapen 1) rubber seeds to be used as planting material were collected from the seed source garden of PT Socfin Indonesia. The study was carried out from January to February 2019, using a non-factorial randomized block design. The morphological characters observed were tapped root length, shoot height, the increased rate of taproot length, shoot height increase rate, ratio of taproot length, and shoot height. Data were analyzed using analysis of variance, discriminant, and drought stress sensitivity index. The results showed that the addition of PEG 6000 in planting media in vitro significantly influenced the character of the rate of increase of taproot length. The sensitivity index of taproot increase rate and the ratio of taproot length and shoot height was moderate at 7.5% levely contrast, the addition of PEG 6000 in planting media in vitro did not significantly impact it. The present study suggested that the rate of increase of taproot length was a distinguishing character showing the initial tolerance level of the GT1 seedlings to drought.
Carbon emissions as impact of mangrove degradation: A case study on the Air Telang Protected Forest, South Sumatra, Indonesia (2000-2020) Syaiful Eddy; Noril Milantara; Mohammad Basyuni
Biodiversitas Journal of Biological Diversity Vol. 22 No. 4 (2021)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d220464

Abstract

Abstract. Eddy S, Milantara N, Basyuni M. 2021. Carbon emissions as impact of mangrove degradation: A case study on the Air Telang Protected Forest, South Sumatra, Indonesia (2000-2020). Biodiversitas 22: 2142-2149. Massive degradation in ATPF occurs due to anthropogenic activities that have converted this area into a coconut plantation, fishpond, settlement, and agriculture. The purpose of this study was to describe changes in land cover and the amount of CO2 emission in ATPF and its causes during the 2000-2020 period using remote sensing data. Data from remote sensing were used to obtain area, classification and land cover change in each period; meanwhile, carbon stock, emissions, and CO2 sequestration were obtained from the analysis using LUMENS software. The results showed that the emissions resulting from land conversion in ATPF during the 2000-2020 period were much greater than sequestration. Net emissions of 1,928,076.56 tons of CO2-eq with an annual emission rate of 96,403.83 tons of CO2-eq/year. The largest source of emissions came from the conversion of primary forest, coconut plantation and secondary forest to open areas; while the source of sequestration comes from the formation of primary and secondary forests. There need to be restoration and conservation efforts in this area by the government and the community to restore the function of ATPF as a coastal protection forest. This research is the first study to examine land cover changes in mangrove forests using data analysis methods with LUMENS.
Short communication: Diversity of bird species in Air Telang Protected Forest, South Sumatra, Indonesia SYAIFUL EDDY; DIAN MUTIARA; ROSWITHA YEMIMA TIUR MEDISWATI; RAMA GIVATI RAHMAN; NORIL MILANTARA; MOHAMMAD BASYUNI
Biodiversitas Journal of Biological Diversity Vol. 22 No. 12 (2021)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d221206

Abstract

Abstract. Eddy S, Mutiara D, Mediswati RYT, Rahman RG, Milantara N, Basyuni M. 2021. Short communication: Diversity of bird species in Air Telang Protected Forest, South Sumatra, Indonesia. Biodiversitas 22: 5274-5279. Birds belong to the mangrove forest ecosystem, which is important biodiversity for life and must be maintained. This study aimed to examine the diversity of bird species in Air Telang Protected Forest (ATPF) which has experienced massive degradation. Birds' observation was carried out using the purposive sampling method by exploring predetermined areas with binoculars and cameras and direct observation. Birds were identified by analyzing their morphology, sound, and color. The research data obtained a total of 38 bird species that consist of 13 orders and 22 families. In addition, the results of this study obtained nine species of migratory birds and two species with near threatened (NT) status based on the IUCN Red List Category. This study is the first bird species inventory and identification research conducted in ATPF.
Co-Authors AGUSTIAMAN PURBA DIAN MUTIARA DIANA CHALIL EDISON PURBA INDRA SYAHPUTRA LOLLIE A.P. PUTRI Noril Milantara NORIL MILANTARA RAHMAH HAYATI RAMA GIVATI RAHMAN ROSWITHA YEMIMA TIUR MEDISWATI SYAIFUL EDDY Syaiful Eddy SYARIFAH AINI PASARIBU YAYA HASANAH