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Morphological and Physiological Adaptations of Venus Slipper (Paphiopedilum) Durotun Ainiyah; Nur Kholiq; Isfina Nurfaidatur Rohmah; Su’udi, Mukhamad
Konservasi Hayati Vol 20 No 1 (2024): APRIL
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/hayati.v20i1.32147

Abstract

Paphiopedilum, commonly known as venus slipper or lady slipper, is a genus of orchids that boasts over 70 species, most of which are critically endangered to endangered. These orchids are characterized by the presence of a sac on the flower that serves a unique function closely related to pollination. The pollination of Paphiopedilum is facilitated by bees, which are lured to the flower by producing pheromones such as €-β-farnese and β-pinene. Pouched orchids also produce compounds from the terpenoid group to synthesize a scent that attracts pollinators. Paphiopedilum orchids have evolved a fascinating mechanism to ensure successful pollination. They trap pollinators by making the pollination area slippery so that when the pollinator enters the area, it is likely to slip and try to get out along with the attached pollen. This unique mechanism ensures that the pollen is transferred effectively, increasing the chances of successful fertilization.
Phytochemistry Profile and Antioxidant Activity of Dumortiera hirsuta (Sw.) Nees from Gumitir, East Java Farhan, Abdillah Maulana; Setyati, Dwi; Gilani, Noor Azizah; Su’udi, Mukhamad; Ulum, Fuad Bahrul
HAYATI Journal of Biosciences Vol. 32 No. 6 (2025): November 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.6.1643-1653

Abstract

Dumortiera hirsuta, a thalloid liverwort, predominantly grows on the ground floor of coffee plantations in Gumitir, Jember District, East Java, and is known for its rich phytochemical content. This study aimed to comprehensively profile the volatile and non-volatile compounds present in the methanol extract of D. hirsuta and evaluate its antioxidant activity. The thallus was macerated using 96% methanol (1:10 ratio), followed by analysis using Gas Chromatography–Mass Spectrometry (GC–MS) and Liquid Chromatography–Mass Spectrometry Quadrupole Time-of-Flight (LC–MS QTOF). GC–MS identified 37 volatile compounds, with terpenes (29%), phenols (21%), and fatty acids (13%) as dominant classes. Several potent antioxidant sesquiterpenoids, including caryophyllene, guaiene, and aromadendrene derivatives, were notably abundant, along with unique compounds such as phytol, benzoic acid, pyrocatechol, and furanones. LC–MS analysis detected 15 non-volatile secondary metabolites, predominantly flavonoids (e.g., kaempferol-3-O-β-D-glucuronide, luteolin, leucocyanidin), phenolics (sesamol, euparin), and terpenoids (brefeldin A, E-p-coumaric acid), of which nine are well-documented for their antioxidant properties. These compounds were identified with high accuracy (mass error ±4 ppm) across positive and negative ion modes. Antioxidant potential was confirmed through the DPPH radical scavenging assay, which yielded a moderate IC₅₀ value of 101.13 ppm and a strong dose-response correlation (R² = 0.9526). The favourable microclimatic conditions of Mount Gumitir likely contributed to the phytochemical richness observed. Collectively, these findings highlight D. hirsuta as a chemically diverse bryophyte with promising antioxidant constituents, supporting its potential application in pharmacological development and natural antioxidant sourcing.
Liparis condylobulbon Reichb. f. from Gumitir, Indonesia: Morphology, Molecular, and Phytochemical Profile Ulum, Fuad Bahrul; Arum, Asyifa Yasmin; Sa’adah, Kurnia; Setyati, Dwi; Dwinianti, Edia Fitria; Rajamani, Ranjithkumar; Nugraha, Ari Satia; Su’udi, Mukhamad
Makara Journal of Science Vol. 30, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Liparis condylobulbon Rchb.f. is an epiphytic orchid across South and Southeast Asia, which holds notable ethnomedicinal and pharmacological significance. This study aims to characterize Indonesian Liparis condylobulbon using integrated morphological, molecular (matK, rbcL, ITS2), and phytochemical (LC-MS, DPPH) analyses of specimens from Mount Gumitir, providing the first comprehensive taxonomic and pharmacological profile to support species authentication and future bioprospecting. The L. condylobulbon specimen displays diagnostic epiphytic morpho-logy, including fusiform pseudobulbs, two elongate leaves, and an erect inflorescence bearing ~123 flowers. Molecular barcoding using matK, rbcL, and ITS2 confirmed its identity, with phylogenetic analyses consistently clustering it with L. condylobulbon, supporting taxonomic placement despite minor ITS2-based variation. Metabolomic analysis revealed 58 distinct secondary metabolites, including 30 flavonoids, 22 terpenoids, and 6 phenolic compounds, with key bioactives such as diosmin, picrasinoside B, and 6-gingerol exhibiting known anti-inflammatory, antioxidant, and anticancer properties. Although the crude extract showed relatively low antioxidant capacity (IC₅₀ = 650 µg/mL), the chemical diversity and presence of pharmacologically active constituents underscore the species' potential for future phytotherapeutic applications.
Effect of Colchicine and Bio-catharantin on the DNA Relative Content and Stomatal Structure of Black Rice (Oryza sativa L. var. Jeliteng) Setyati, Dwi; Su’udi, Mukhamad; Wulandari, Dyah Retno; Handoyo, Tri; Ulum, Fuad Bahrul
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.88279

Abstract

Black rice (Oryza sativa L. var. Jeliteng), known for its health benefits compared to white rice, faces challenges in productivity. Among varieties, this black rice is popular in Indonesia but shows low yield. Research on improving black rice through genetic manipulation with antimitotic substances is limited. Therefore, this study aims to compare the effects of colchicine and Bio-catharantin on the germination rate, DNA relative content, and stomatal structure of O. sativa L. var. Jeliteng. Seeds were treated with colchicine (0.1%, 0.2%, and 0.3%) and Bio-catharantin (0.1%, 0.2%, 0.3%, 0.4%, and 0.5%) at soaking durations of 12, 24, and 48 hours. Germination was assayed, ploidy was determined using flow cytometry, and stomatal traits, including size and density, were examined microscopically. The results showed that Bio-catharantin did not exhibit any toxic effects on germination rates, whereas colchicine reduced germination starting at 0.2% concentration. Both chemical agents modified the DNA relative content of Jeliteng black rice. Colchicine generally increased stomatal length and width while decreasing stomatal density, with significant changes at 0.3% concentration for 24 hours. Bio-catharantin also altered stomatal traits, enhancing length and width in most cases but significantly reducing density under certain conditions. Bio-catharantin emerged as a promising alternative to colchicine for inducing chromosomal mutations in plants, offering benefits in altered stomatal structures without the toxic effects on germination, compared to colchicine.