Article Per Year (5 Year)
p-Index From 2020 - 2025
0.562
P-Index
This Author published in this journals
All Journal Jurnal Biologi Tropis BIOVALENTIA: Biological Research Journal BIO PALEMBANICA
Nisa, Amanatun
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
The Morphological, Anatomical and Physiological Responses of Kemiri Sunan (Reutealis trisperma) Under Drought Stress Nisa, Amanatun; Devita , Harijayanti; Riki , Kurniawan
BIOVALENTIA: Biological Research Journal Vol. 11 No. 1 (2025)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.11.1.2025.466

Abstract

Reutealis trisperma is a promising bioenergy crop, exhibits notable drought stress responses that influence its morphology, physiology, and anatomy. However, the information about Reutealis trisperma under drought stress was still limited. Therefore, we conducted this study to evaluates the plant's adaptive mechanisms under controlled greenhouse conditions with varying levels of drought stress of Reutealis trisperma. We used a completely randomized design (CRD) with drought stress as the treatment and 10 repetitions. Drought stress was applied by withholding water, with treatments divided into mild stress (2 weeks) and suffer stress (7 weeks). Control plants were watered regularly. We measured some morphological parameters (plant height, number of leaves, dry weight), physiological parameters (RWC, MDA, proline, chlorophyll content), and anatomical parameters (stomatal density and structure). Data were analysed using ANOVA with a 0.05 significance level. Results revealed a decline in plant height, chlorophyll content, and relative water content (RWC), alongside an increase in malondialdehyde (MDA) levels, indicating oxidative stress. Morphological changes included reduced leaf and root biomass, while anatomical adaptations featured reduced stomatal density to conserve water. Reutealis trisperma exhibits significant morphological, physiological, and anatomical adaptations under drought stress. Drought reduced plant height, chlorophyll content, and relative water content while increasing root-to-leaf dry weight ratios and malondialdehyde levels, indicating oxidative stress. Anatomical changes, such as reduced stomatal density, enhance water conservation. These adaptations underscore the plant's resilience, supporting its potential for bioenergy production on marginal, water-deficient lands.
The Presence of Branded Imperial Eooxylides tharis Geyer, 1837 (Lepidoptera: Lycaenidae) in Bangka Island, Sumatra, Which Subspecies is This? Aprillia, Ina; Effendi, Zahrial; Nisa, Amanatun; Iqbal, Muhammad
BIO PALEMBANICA Vol 2 No 1 (2025): Bio Palembanica
Publisher : Lembaga Penelitian, Pengabdian Kepada Masyarakat dan Kepustakaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/bio.v2i1.5150

Abstract

The Branded Imperial Eooxylides tharis Geyer, 1837 is a lycaenid butterflies found in mainland Sumatra and Belitung Island, but no references provided information if this butterfly occur in Bangka Island. On 7 December 2024, few individuals of E. tharis were observed and documented in Pelawan Forest, Namang  Village, Central Bangka  District, Bangka Island, Sumatra. In addition, there are two reports from citizen science platform about the presence of E. tharis in Bangka Island. The status of which subspecies is discussed, and it is possible that population of E. tharis from Bangka Island represent a new subspecies. Keywords: Bangka, Branded Imperial, Eooxylides tharis, Rhopalocera, Sumatra.
Diversity of Ferns (Pteridophyta) in the Bukit Pinteir Forest Central Bangka Harijayanti, Devita; Nisa, Amanatun; Partinisah, Firgia; Salsabila, Naqqiyah; Indira, Salsa; Ramadani, Suci Hajria; Izafah, Tari Zara; Amelia, Tia
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i2.9044

Abstract

The aim of this study was to identify and analyze the diversity of ferns (Pteridophyta) in the secondary forest of Bukit Pinteir, Central Bangka. We collected the primary data through field observations conducted using the purposive sampling method, along with the measurement of abiotic factors at two stations with different altitudes (96 and 238 mdpl). The data were analyzed with important value index and Shannon-Wiener species diversity index (H’).  Twelve fern species from 10 families were identified, namely Dicranopteris linearis, Davallia denticulata, Nephrolepis cordifolia, Nephrolepis biserrata, Lygodium japonicum, Lygodium flexuosum, Coniogramme japonica, Blechnopsis orientalis, Asplenium nidus, Platycerium coronarium, Pteridium esculentum, and Stenochlaena palustris. Based on the results, Nephrolepis cordifolia was the most dominant species, with its important value index was 16.92, followed by Dicranopteris linearis and Blechnopsis orientalis. The Shannon-Wiener diversity index (H’ = 0.663) indicated low species diversity with uneven distribution. Abiotic factors such as temperature (30.1–30.5 °C), soil moisture (60–70%), air humidity (67–71%), and soil pH (6.5) reflected a microclimate favorable for fern growth. Many studies are still needed to record the diversity of ferns in Bukit Pinteir and increase species diversity to maintain environmental sustainability.
Co-Authors Amelia, Tia Aprillia, Ina Devita , Harijayanti Effendi, Zahrial Harijayanti, Devita Indira, Salsa Izafah, Tari Zara Muhammad Iqbal Partinisah, Firgia Ramadani, Suci Hajria Riki , Kurniawan Salsabila, Naqqiyah