| Sains Malaysiana 52(9)(2023):
          
        2485-2498  http://doi.org/10.17576/jsm-2023-5209-02
            
           
             
           Systemic Histology of the Marine
            Water-Strider Halobates hayanus (Heteroptera, Gerridae)
  
           (Histologi Sistemik Water-Strider Marin  Halobates
            hayanus (Heteroptera, Gerridae))
            
 
             
           SINLAPACHAI SENARAT1,2, NARITSARA SAELUEA2,
            EZRA MONGKOLCHAICHANA3, NATTHAWUT CHAROENPHON4, WISUT
            SITTICHAYA5, NARIT THAOCHAN5,*, PISIT POOLPRASERT6,
            ANAN KENTHAO7, KORRAWAT ATTASOPA8 & PIYAKORN
            BOONYOUNG9 
             
           1Division of Biological Sciences, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand 2Department of Marine Science and Environment, Faculty of Science and
            Fisheries Technology, Rajamangala University of Technology Srivijaya, Trang
            Campus, Trang 92150, Thailand
                
           3Department of General Education, Faculty of Science and
            Health Technology, Navamindradhiraj University, Bangkok 10300, Thailand
                
           4Department of Anatomy,
            Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand
  
 5Innovation and Management Division (Pest
            Management), Faculty of Natural Resources, Prince of Songkla University,
            Songkhla 90110, Thailand
            
 6Department of Entomology, Faculty of Argriculture, Kasetsart University, Chatuchak, Bangkok 10900, Thailand           7Department of Biology, Faculty of Science, Naresuan
            University, Phitsanulok 65000, Thailand
            
         8Department of Entomology and Plant
            Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200,
            Thailand 
            
 9Division of Health and Applied Sciences, Faculty of
            Science, Prince of Songkla University, Songkhla 90110, Thailand
                
           
             
           Diserahkan: 4 Januari
            2023/Diterima: 10 Ogos 2023
            
           
             
           Abstract
            
           The structure and cell types of the organs of Halobates hayanus from Libong Island, Thailand, were
            investigated using a histological method. The integumentary system of this
            species consists of three layers: epicuticle, exocuticle, and endocuticle. Throughout
            the body, the muscular system
              exclusively included skeletal muscle. In the
                excretory system, we found four fully formed Malpighian tubules, each one lined
                with a straightforward cuboidal epithelium harbouring secretory granules. The
                digestive system comprised a foregut, midgut, and hindgut. The
                  midgut had three distinct cell types: basal cells, epithelium, and absorptive cells. The
                    nervous system comprised two regions: A ventral nerve cord and a frontal ganglion,
                      which is connected to the eye structure. The frontal ganglion was composed of two
                        lobes each containing an outer cortex and inner medulla. The outer
                          cortex presented neurosecretory cells, neuroglia cells, and neurons. The
                            neurosecretory cells were large and contained secretory granules in their
                            cytoplasm. This
                              histological study also showed the reproductive system of this gerrid species,
                              including the reproductive tract, and the accessory organ.
                              
 
             
           Keywords: Histological
            structure; Libong Island; oceanic Halobates species; systemic organs 
  
 
             
           Abstrak
            
           Struktur dan jenis sel organ Halobates hayanus dari Pulau Libong, Thailand, dikaji menggunakan kaedah histologi. Sistem
            integumen spesies ini terdiri daripada tiga lapisan: epikutikel, eksokutikel
            dan endokutikel. Pada seluruh badan, sistem otot secara eksklusif merangkumi
            otot rangka. Dalam sistem perkumuhan, kami menjumpai empat tubul Malpighian
            yang telah terbentuk sepenuhnya, setiap satu dilapisi dengan epitelium kuboid
            lurus yang menyimpan butiran rembesan. Sistem pencernaan terdiri daripada usus
            depan, usus tengah dan usus belakang. Usus tengah mempunyai tiga jenis sel yang
            berbeza: sel basal, epitelium dan sel penyerap. Sistem saraf terdiri daripada
            dua kawasan: kord saraf ventral dan ganglion frontal, yang bersambung dengan
            struktur mata. Ganglion frontal terdiri daripada dua lobus setiap satu
            mengandungi korteks luar dan medula dalam. Korteks luar membentangkan sel
            neurorembesan, sel neuroglia dan neuron. Sel neurorembesan adalah besar dan
            mengandungi butiran rembesan dalam sitoplasmanya. Kajian histologi ini juga
            mendedahkan sistem pembiakan spesies gerrid ini, termasuk saluran pembiakan dan
            organ aksesori.
            
           
             
           Kata kunci: Organ sistemik; Pulau Libong; spesies Halobates lautan; struktur histologi
            
           
             
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           *Pengarang
            untuk surat-menyurat; email: narit.t@psu.ac.th
  
           
          
          
           
         
            
          
           
          
           
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