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ANOPHELES MICROBIOTA IN MALARIA VECTOR AND THE EFFECT ON PARASITE TRANSMISSION Dita Paramytha Agustin; Berlian Permata Dewi Erlambang; Cizein Tri Cahyanti; Syubbanul Waton; Rike Oktarianti; Kartika Senjarini
BIOEDUKASI Vol 19 No 2 (2021)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v19i2.25165

Abstract

Malaria is a vector-transmitted disease with a high number of cases. Plasmodium parasites are transmitted from the body of the Anopheles mosquito to the host through several mosquito organs, including the salivary glands and the midgut. The salivary glands and the midgut, apart from being a breeding ground for parasites, are known from several studies that various types of microbiota inhabit these two organs. The group of bacteria is the most widely known to be associated with Anopheles mosquitoes. The bacteria found were dominated by Gram-negative bacteria, with Pseudomonas being the most common, followed by Aeromonas, Asaia, Comamonas, Elizabethkingia, Enterobacter, Klebsiella, Pantoea, and Serratia. The group of Gram-positive bacteria was represented by the genera Bacillus, Streptococcus, Lactobacillus, and Staphylococcus. Each species of Anopheles has a different composition of associated bacteria. Anopheles-associated bacteria currently receive much attention because of their role in fighting Plasmodium infection. The ability of malaria vector-associated bacteria to inhibit and fight Plasmodium infection is divided into three mechanisms. Bacteria can triger an immune response through the Immune-deficiency (IMD) pathway, which causes active anti-Plasmodium and the production of antimicrobial peptides, increasing ROS synthesis and microbiota, which trigger hemocyte differentiation to protect against Plasmodium. This function related to inhibiting Plasmodium development needs further research so that later it can become an option for vector-based malaria control without damaging the sustainability of the environment.
USING sma-its2 PRIMER FOR ITS2 (Internal Transcribed Spacer-2)-BASED MOLECULAR CHARACTERIZATION OF Anopheles minimus FROM KULONPROGO, YOGYAKARTA - INDONESIA Syubbanul Wathon; Berlian Permata Dewi Erlambang; Naura Paramitha Cindy Ardyah; Devi Astikaningrum; Rike Oktarianti; Kartika Senjarini
BIOEDUKASI Vol 20 No 1 (2022)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v20i1.31911

Abstract

Malaria is a public health threat caused by the Plasmodium infection transmitted by the Anopheles mosquito. Malaria vector control is highly dependent on the ability to determine mosquito species' vectorial and bionomic capacity. Species identification based on morphological characteristics as well as DNA-barcoding approaches is a very important step in determining vectorial capacity. Our research group has redesigned a new ITS2 primer, namely, sma-its2, which is specifically able to identify the Anopheles (An.) mosquito vector but cannot identify other mosquito vectors. This study wanted to test this primer's specificity further for identification of other Anopheles mosquitoes. We used An. minimus collected from Kulonprogo, Yogyakarta – Indonesia. The methods used in this research are as follows: landing collection, morphological identification, isolation of genomic DNA, PCR (Polymerase Chain Reaction), PCR product purification, sequencing, and data analysis. An. vagus from Bangsring, Banyuwangi – Indonesia, which had previously been identified using the same primary, was used as a positive control. The results of the morphological analysis showed that both species were in accordance with the vector identification key used in this study. The molecular analysis showed that the sma-its2 primer could amplify the ITS2 sequence of An. vagus and An. minimus, producing 650 – 700 bp. However, further analysis of the ITS2 sequences of both species, resulted in the same species, namely An. vagus, with a different accession number in GenBank. This showed that the sma-its2 primar can be used to identify An. vagus but cannot be used to identify An. minimus. Analysis of the primer position in the ITS2 sequences showed the presence of 3 nucleotides in the forward sma-its2 primer that was not recognized by the An. minimus sequences and thus, hinder the successful identification of these species.