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JPBIO (Jurnal Pendidikan Biologi)
Published by STKIP Persada Khatulistiwa Sintang
ISSN : -     EISSN : 2540802X     DOI : -
Core Subject : Education,
Education
JPBIO (Jurnal Pendidikan Biologi) adalah jurnal yang menerima kontribusi tulisan/artikel yang berkaitan dengan studi-studi kependidikan, pengajaran dan evaluasi belajar di bidang pendidikan biologi, baik laporan penelitian, maupun tinjauan buku yang belum pernah diterbitkan di media cetak ataupun elektronik
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Articles 232 Documents
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Lansium domesticum metabolites interfere with digestive enzyme function in the rice weevil sitophilus oryzae Oktariansyah, Yadi; Putri, Ferta Liza; Harvianti, Yuniar; Musifa, Eva
JPBIO (Jurnal Pendidikan Biologi) Vol 11, No 1 (2026): April 2026
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v11i1.6212

Abstract

Pectin methylesterase (PME) plays a key role in polysaccharide digestion in the rice weevil Sitophilus oryzae, making it a potential molecular target for pest control. This study employed structure-based in silico analysis to evaluate selected metabolites of Lansium domesticum as PME inhibitors. Representative compounds were chosen according to predicted interference mechanisms and docked into the validated catalytic site. All complexes showed structural stability, while interaction patterns revealed six inhibition modes: competitive mimicry, catalytic disruption, orientation interference, channel blocking, polymer mimicry, and interfacial modulation, whereas polyphenols and glycosides produced the strongest interference. The findings indicate that L. domesticum metabolites can disrupt digestive enzymatic processes through multiple complementary pathways, supporting their potential development as biologically derived pest management agents.
Population structure and local utilization of spider conch (lambis lambis) in abang island waters, batam Airani, Rentik Nurisma; Efendi, Yarsi; Syamsi, Fauziah
JPBIO (Jurnal Pendidikan Biologi) Vol 11, No 1 (2026): April 2026
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v11i1.6013

Abstract

This study explores the population structure, spatial distribution, and community utilization of Lambis lambis on Abang Island as a foundation for species conservation and community-based management. The research aims to examine the population structure and distribution patterns of Lambis lambis as well as its utilization by fishing communities on Abang Island, Batam. Data were collected using a 50-meter quadrat transect method with observation plots measuring 5 m × 5 m, along with measurements of environmental parameters (dissolved oxygen, temperature, and salinity). The results indicate low population density (0.012–0.028 ind/m²) and a clustered distribution pattern (Morisita Index > 1). A positive correlation was found between dissolved oxygen and population density, while high temperature showed a negative correlation. These findings suggest that environmental pressure and exploitation influence the spatial distribution of Lambis lambis. This study provides a scientific basis for community-based management and species conservation.

Page 24 of 24 | Total Record : 232

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