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All Journal Jurnal Biodjati Biosaintifika: Journal of Biology & Biology Education
Endah Dwi Hastuti
Department of Biology, Faculty of Science and Mathematics, Diponegoro University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences

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Anatomical Adaptation of Grey Mangrove (Avicennia marina) Leaf in the Pond and Coast Located in Mangunharjo, Semarang, Central Java Atia Nadira Lumban Tobing; Sri Darmanti; Endah Dwi Hastuti; Munifatul Izzati
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 1 (2022): April 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i1.29828

Abstract

Mangrove is a brackish plant that can live in habitats with extreme environmental conditions. For instance, the grey mangrove (Avicennia marina) is a mangrove species that can adapt anatomically in habitats with a wide range of salinity, such as ponds and coasts. This study examines the forms of anatomical adaptation of A. marina by comparing the anatomical structure of A. marina leaves that live in two different habitats, namely pond, and coast in the Mangunharjo area, Semarang, Central Java. The third leaf from the tip of the tree branches was used as samples and taken from three different trees in each habitat. Cross-section prepared microscope slides of the leaves were made using the embedding method and observed using a photomicrograph. The quantitative data were analyzed using the T-test at a 90% confidence level, while the qualitative data were analyzed descriptively. The results showed that different environmental conditions do not cause differences in the anatomy of A. marina leaves, but there are some histological modifications as a form of adaptation. These modifications are differences in the thickness of the cuticle, adaxial epidermis, parenchymal palisade tissue, spongy parenchyma, and the number of xylem cells in one vascular bundle. This research might initiate more advanced studies regarding the correlation between mangroves’ anatomical structure and anatomical adaptation towards diverse environmental conditions. The results of this study are expected to provide information about the anatomical structure of A. marina leaves that live in two habitats with different environmental conditions.
Effects of Corn Cob Biochar and Plant Density on Zinc Uptake and Growth of Vetiver Grass (Chrysopogon zizanioides) in Leachate-Contaminated Landfill Soil Muhammad Luthfi Fachrezi; Endah Dwi Hastuti; Yulita Nurchayati
Jurnal Biodjati Vol 11 No 1 (2026): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v11i1.54277

Abstract

Leachate contamination from landfill waste can increase zinc (Zn) concentrations in soil beyond permissible limits. This study evaluated the effects of corn cob biochar and plant density on Zn uptake and growth of vetiver grass (Chrysopogon zizanioides) grown in leachate-contaminated landfill soil. The experiment was arranged in a completely randomized design with a 2 × 2 factorial scheme and three replications. The first factor was biochar application (without biochar and with biochar), and the second factor was plant density (1 plant and 3 plants per planting bag). The results showed that neither biochar nor plant density, nor their interaction, had a significant effect on soil Zn concentration, root bioconcentration factor (BCF), shoot BCF, and translocation factor (TF). Biochar treatment was associated with lower residual soil Zn concentrations (48.33 mg/kg), higher root bioconcentration factor (BCF) (1.21), and lower shoot BCF (0.78) and translocation factor (TF) (0.70) compared to the treatment without biochar. Similarly, higher plant density showed comparable trends, with lower residual soil Zn concentrations (47.92 mg/kg), higher root BCF (1.33), and lower shoot BCF (0.85) and TF (0.85) compared to lower plant density. However, biochar significantly increased root length, while higher plant density significantly increased shoot dry weight, root biomass, leaf number, and tiller number per planting bag, but decreased plant height per planting bag. Fresh shoot weight per planting bag did not differ significantly among treatments.  There was an interaction between biochar and low plant density that increased plant height. The absence of an unplanted control limits the interpretation of Zn reduction. Overall, biochar application and higher plant density were associated with improved growth performance of vetiver grass and may contribute to enhanced Zn uptake characteristics under leachate-contaminated conditions.
Co-Authors Atia Nadira Lumban Tobing Muhammad Luthfi Fachrezi Munifatul Izzati Sri Darmanti Yulita Nurchayati