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INDONESIA
HAYATI Journal of Biosciences
Published by Institut Pertanian Bogor
ISSN : 19783019     EISSN : 20864094     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
HAYATI Journal of Biosciences (HAYATI J Biosci) publishes articles and short communication in tropical bioscience fields such as development, biotechnology, biodiversity and environmental issues. HAYATI J Biosci covers wide range of all life forms topics including virus, microbes, fungi, plants, animal and human. HAYATI J Biosci has been also indexed/registered in Crossref, DOAJ, CABI, EBSCO, Agricola and ProQuest.
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Articles 15 Documents
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Search results for , issue "Vol. 29 No. 6 (2022): November 2022" : 15 Documents clear
Diversity and Population Structure of Local Rice Varieties from Indonesia Revealed by SSR Markers Rerenstradika Tizar Terryana; Puji Lestari; I Gusti Komang Dana Arsana; Kristianto Nugroho; I Made Jana Mejaya; Priatna Sasmita; Yudi Sastro; Karden Mulya; Dwinita Wikan Utami; Mastur
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.749-761

Abstract

Indonesia's local rice varieties (Oryza sativa L.) have a wide range of diversity that can be valuable sources for crop improvement with molecular markers. This study investigated local rice varieties' genetic diversity and population structure using simple sequence repeat (SSR) markers. The SSR markers demonstrated their informativeness for genotypic characterization as represented by the gene diversity indices and polymorphic information content. The UPGMA dendrogram divided 63 varieties into two distinct clusters with different levels of sub-grouping and the tendency according to their origins, as supported by PCoA. In contrast, PCA of these varieties according to agro-morphological traits was scattered in all quadrants. Thus, DNA level variation analyzed by SSR seems to complement the phenotypic traits, which were not well structured and revealed significant genetic diversity among varieties, within, and among populations (P<0.01). The pattern of grouping structure analysis of total varieties into two subpopulations is similar to the dendrogram according to SSR markers but better resembles the pedigree information of the set local varieties. These findings have implied their importance in rice breeding for genetic improvement, maintenance, and management of local genetic resources in Indonesia.
Epstein-Barr Virus and Malaria Interactions: Immunology Perspective Insani Budiningsih; Jaap M. Middeldorp; Yoes Prijatna Dachlan; Usman Hadi
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.824-833

Abstract

Epstein-Barr Virus can cause various diseases, from acute inflammatory diseases such as fatal or chronic EBV infection, infectious mononucleosis as well as lymphoid and epithelial cancer, various autoimmune diseases, and also could interact with malaria. As EBV infects 95% of the world population, and more than 30% are infected with the protozoan parasite, with more than 500,000 deaths due to malaria cases. It is important to understand how EBV dysregulates the immune system, especially when the virus is interacting with other pathogens such as malaria parasites, causing more severe conditions in certain people like Burkitt Lymphoma. This review will be informative about the mechanism of how EBV interacts with malaria parasites and how it affects the immune system. Knowledge of various cytokines triggering the immune system which may provide links to control/minimize malaria disease severity.
Conjugational Transformation of Wild Type Bacillus halodurans CM1 by Methylated Recombinant Plasmid Harbouring a Gene Encoding for Alkaline Protease and the Protease Activity Assay of the Transformant Valerry Athalia Priyanka; Maria Ulfah; Lina Mulyawati; Abinawanto; is helianti
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.799-805

Abstract

Protease contributes significantly to various industrial sectors, as shown by its increasing demand. An indigenous previously isolated bacteria, Bacillus halodurans CM1, is a wild-type bacterium whose ability to produce alkalotermophilic protease. In this study, the transformation of methylated pBBRE194 plasmid containing alkaline protease gene from this strain (PBBRE194-prot-CM1) into itself using a conjugation approach was conducted, and the measurement of the alkaline protease activity of the recombinant bacterium was carried out. The recombinant B. halodurans CM1 has been verified to carry the methylated pBBRE194 prot-CM1 by examining its ability to degrade protein in media containing skim milk and tetracycline, but also by amplifying tetracycline resistance gene sequence with 1,024 bp length of plasmid pBBRE194 prot-CM1 by PCR method from the recombinant bacterium. The results confirmed that recombinant B. halodurans CM1 was positively harboring plasmid pBBRE194 prot-CM1. Alkaline protease produced by recombinant CM1 reached higher activity than wild type between 18-36 h of cultivation. The alkalotermophilic wild type B. halodurans could accept the recombinant plasmid into their cells via conjugational transformation is firstly reported to our further knowledge.
Genetic Parameters, Inter-relationship Among Agronomic Traits and Dehulled Rice Morpho-Biochemical Profile of Promising Black Rice x Mentik Wangi Lines Eka Oktaviani; . Suprayogi
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.834-844

Abstract

A comprehensive understanding of the genetic parameters and the interrelationship among characters in the breeding population is crucial for selecting low amylose and high antioxidant black rice varieties. Meanwhile, dehulled rice morpho-biochemistry profile can be used to determine the grain quality of F6 and F7 lines of Black Rice x Mentik Wangi var. The objectives of this study were to determine the agronomic traits, figure up the genetic parameters, describe the relationship among agronomic characteristics of the F6 lines, and determine the morpho-biochemical profile of F7 dehulled rice. Agronomic traits showed a difference in each line. Genetic parameters in each trait showed various categories. Path analysis showed that the number of tillers affected the dry weight and grain weight per panicle, but the plant dry weight did not directly affect the weight of 1,000 grain. Directly, the weight of 1,000 grain was only significantly affected by the grain weight per panicle trait. The F7 lines had a difference in grain length and amylose content. The dehulled rice color of the two lines showed the combination of the two parents. Based on the student T-test conducted on F6 and F7 grain, there was no difference in antioxidant content between the two sample groups. The antioxidant activity of all lines was in the range between the antioxidant activities of the two checked varieties. Although further research is still needed, the lines have the potency to be developed as low amylose pigmented rice.
Squash Leaf Curl Virus: Species of Begomovirus as the Cause of Butternut Squash Yield Losses in Indonesia Dewa Gede Wiryangga Selangga; Listihani Listihani
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.806-813

Abstract

Curling symptom was found in pumpkin plants in Bali, and the PCR detection result using Begomovirus universal primers indicated Begomovirus infection. Further research was conducted to determine the distribution, molecular character of SLCV, and yield loss of the pumpkins. Sampling was carried out at pumpkin plantations in 9 districts in Bali. Detection and identification were carried out using PCR method, followed by cloning and DNA sequencing. DNA band with the measurement of 900 bp was successfully amplified from several pumpkin samples from Denpasar, Gianyar, and Buleleng. Homology analysis of nucleotide sequences using the database in GenBank of SLCV of Balinese isolates showed the highest homology and kinship of 97.3-98.4% and 98.4-99.3% respectively with East Timor isolates from pumpkin plants. The phylogeny analysis showed that SLCV Indonesian isolates were in the same group as Asian isolates. The result of this study is the first report on infection and molecular characterization of SLCV in pumpkin plants in Indonesia. The yield loss caused by curling disease on individual pumpkin plants was 56.3%, and the disease caused a decrease in the quality of harvest fruits. Yield loss estimation caused by the disease in fields with different levels of disease intensity ranged from 10.02 to 25.83%. It was equal to yield loss ranging from IDR 878,400.00 to IDR 10,826,400.00 depending on the disease intensity. It is found that the correlation between curling disease severity and yield loss was high.
Clinical and Hematological Parameters of Captive Timor Deer (Rusa timorensis) under Physical Restraint Virgilius Martin Kelake Kedang; Anita Esfandiari; Arief Purwo Mihardi; Robby Wienanto
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.742-748

Abstract

Timor deer (Rusa timorensis) is native species in Indonesia that faces many threatening issues. Studies related to the health aspects of Timor deer are considered essential to provide some information related to deer health management in captivity. Deer handling procedures in captivity in Indonesia are commonly carried out with physical restraint. Physical restraint in animals is known to cause various changes in animals’ clinical and hematological values. This study aimed to determine the clinical and hematological parameters of Timor deer under physical restraint in captivity. This study used ten Timor deer that consisted of five stags and five hinds. The deer was positioned in a chute, then continued with the physical examination and blood sampling. Parameters observed in this study are clinical and hematological parameters. This study showed that clinical parameters of Timor deer under physical restraint have significant differences between sex groups, except for respiration rate parameters. Hematological parameters of physically restrained Timor deer did not show significant differences between sex groups, except for basophil parameters. This study concluded that physical restraint could affect the clinical and hematological parameters of Timor deer.
The Effect of Cang Salak Tea Diet on Apolipoprotein C3 (ApoC3) Gene Expression on Hyperlipidemic Rats Model Burhannuddin; I Wayan Karta; I Gusti Ngurah Dwija Putra; Felicia Kartawidjajaputra
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.814-823

Abstract

Cardiovascular disease (CVD) is the leading cause of global mortality and disability. Hyperlipidemia is a major risk factor for CVD that can be controlled through medical therapy, appropriate nutrition, and lifestyle. This study aimed to identify the cang salak tea diet’s effect on the ApoC3 gene expression in a hyperlipidemia rat. 18 male Wistar rats were divided equally into three groups. A high-fat-diet-induced two groups of rats, and one group was the control. Once hyperlipidemia had been achieved, one of the two groups was treated with the cang salak tea, and one group was given a standard diet for four weeks. Authenticated rat and liver tissue were collected as a source of RNA isolation. Isolated RNA was used as a reaction template for the relative quantitation qPCR using β-actin as the housekeeping gene. The ApoC3 gene was specifically amplified with a Tm value of 82.73°C, Cq 17-19, and produced a sigmoid curve. The relative expression level of the ApoC3 gene in hyperlipidemia rats fed with the cang salak tea diet was 0.46 times significantly lower than the control (1.17) and P2 (1.32) groups. These results indicate that the cang salak tea has antihyperlipidemic properties to reduce CVD risk.
Some Hatchery Parameters of Three Species of Groupers: Tiger Grouper (Epinephelus fuscoguttatus), Humpback Grouper (Cromileptes altivelis), and Leopard Coral Grouper (Plectropomus leopardus) Suko Ismi; Darmawan Setia Budi
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.762-770

Abstract

Three species of groupers, including tiger grouper (Epinephelus fuscoguttatus), humpback grouper (Cromileptes altivelis), and leopard coral grouper (Plectropomus leopardus), have been successfully cultivated. However, the constraints on larviculture that have been described still arise in the hatchery. This study compares several hatchery parameters in these three grouper species representing three different genera (Epinephelus, Cromileptes, and Plectropomus). The egg incubation and larval rearing were carried out in a concrete tank (3 x 3 x 1.2 m3) filled with 6-7 m3 seawater. Eggs were stocked with a density of 100,000 eggs/tank. The grouper larvae were reared until they became juvenile. The eggs were incubated until they were hatched in the same container and media as larval rearing. Larvae were reared until 60 dah (days after hatching), and data were taken from the rearing for three cycle's larval culture. Management of grouper larval rearing follows the Good Fish Hatchery Method (Cara Pembenihan Ikan yang Baik/CPIB) based on Indonesian National Standard (Standar Nasional Indonesia/SNI). The experimental parameters were egg diameter, hatching rate, larvae mouth opening width, survival activity index (SAI), larvae development, and total body length growth. The several hatchery parameters in three grouper fish species are significantly different. The tiger grouper has the best larval performance.
Antibacterial and Antioxidant Activities of Fungal Endophytes Isolated from Medicinal Plants in Simeulue Island, Aceh Ahmad Fathoni; Muhammad Ilyas; Praptiwi; Dewi Wulansari; Andria Agusta
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.720-732

Abstract

Natural products from endophytic fungi have a wide range of medicinal applications, including antibacterial and antioxidant agents. The research aimed to evaluate the antibacterial and antioxidant activities of compounds derived from endophytic fungi isolated from medicinal plants collected from Simeulue Island by TLC dot-blot and microdilution assays. Eighty-one fungal extracts were screened for antibacterial and antioxidant activities. Antibacterial activity was evaluated against Gram-positive and negative bacteria, i.e., Staphylococcus aureus InaCC B-4 and Escherichia coli InaCC B-5, respectively. Antioxidant activity was carried out by using free radical scavenging of 1,1-diphenyl-2-picrylhydrazyl (DPPH). The results of the TLC bioassay revealed that the fungal extracts have activities as antibacterial and antioxidant are 65 (against S. aureus), 57 (against E. coli), and 48 extracts (DPPH free radical scavenger). Two extracts, Phomopsis sp. 48BtSi-2.1 and Xylaria sp. 55DnSi-1.1, showed strong antibacterial activity against S. aureus with MIC value of 32 μg/ml. Furthermore, nine extracts (Schizophyllum sp. 20DnSi-1; Hyphomycetes 36BhSi-1.1; Phomopsis sp. 36DnSi-2.1; Schizophyllum sp. 39DnSi-1.1; Xylaria sp. 39RpSi-2.1; Phomopsis sp. 41BtSi-1.1; Phomopsis sp. 48BtSi-2.1; Lasiodiplodia sp. 48BtSi-3.1; Schizophyllum sp. 50DnSi-3) were strong activity against E. coli with MIC value ranges from 32 to 64 μg/ml. One extract, Xylaria sp. 04BtSi-2.2 has strong antioxidant activity as DPPH free radical scavenger with an IC50 value of 21.66 μg/ml (AAI value of >1).
Biological Aspects and Feeding Ecology of Sembilang Plotosus canius in Langsa Estuary Agus Putra Abdul Samad; Nur Fazillah Nur Fazillah; Rindhira Humairani; Ilhamdi; Nan Fan Hua
HAYATI Journal of Biosciences Vol. 29 No. 6 (2022): November 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.6.782-788

Abstract

The knowledge of the biological aspects and feeding activity of fish is required to manage the lack of data on fisheries. In this study, a total of 200 Plotosus canius were caught and examined to obtain information on their biological aspects, length-weight relationship, and feeding activity. The fish were captured using a gill net and traditional fishing trap called Bubu. Subsequently, all samples were examined for total body weight, total length, condition factor, gonad maturity, and feeding activity. The results showed that the specimens captured were 156 males and 44 females weighing between 95-280 gr and 117-214 gr with the length of 26-39 cm and 28-36.3 cm, respectively. The length-weight relationship showed a negative allometric growth pattern. The mean condition factors of males and females were 1.1048 and 1.0102, respectively. At the same time, the maturity level of gonads was at I and II. Moreover, it was discovered that most organisms in the digestive tract were shrimp, worms, small fish, and crabs, while the highest index of preponderance was in shrimp with 42%. In conclusion, this study showed the new information about length-weight, biological condition, and feeding habits of Plotosus canius, which can be inventoried to strengthen data on sustainable fisheries management.

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