This Author published in this journals
Leksonowati, Aryani
Research Center for Biology-Indonesian Institute of Sciences

Published : 2 Documents Claim Missing Document
Claim Missing Document

Found 2 Documents

INDUKSI BIAK KALUS DAN BIAK SUSPENSI SEL Aquilaria malaccensis Lam. [Induction of Callus Culture and Cell Suspension Culture of Aquilaria malaccensis Lam.] Witjaksono, Witjaksono; Leksonowati, Aryani; Ratnadewi, Diah
BERITA BIOLOGI Vol 16, No 1 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2672.281 KB) | DOI: 10.14203/beritabiologi.v16i1.2687


Aquilaria malaccensis Lam. is a plant species producing fragrant woody material that contains some resin. The compounds can be used as medicine and perfume. Sesquiterpenoid, one group of compounds has been found being synthesized and subsequently extracted from callus and cell suspension culture of Aquilaria species. The aim of this research was to find a method of producing friable calli and cell suspension cultures from leaves or internodes of A. malaccensis in vitro by using suitable plant growth regulators; cell suspension that will suitably serve as material to produce sesquiterpenoid afterwards. Calli were established in almost all treatments of auxin-cytokinin on both leaves and internod explants. The treatment of 10 mg/L IBA induced the highest percentage of callus coverage from leaves with a rather compact structure. The combined treatment of 1–2 mg/L 2.4-D and 0.2–0.3 mg/L BA induced friable callus formation in more than 80% of cultures with 27–32% callus coverage percentage.  The use of 2,4-D induced a better formation of cell suspension than Picloram, with maximum volume up to 7 mL. Cell suspension culture with fine and homogenous aggregate could be established in the medium supplemented with 0.5 –1 mg/L 2,4-D.
PENGARUH MUTAGEN ETIL METAN SULFONAT (EMS) TERHADAP PERTUMBUHAN KULTUR IN VITRO ILES-ILES {Amorphophallus muelleri Blume) Poerba, Yuyu S; Leksonowati, Aryani; Martanti, Diyah
BERITA BIOLOGI Vol 9, No 4 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (916.437 KB) | DOI: 10.14203/beritabiologi.v9i4.2013


Amorphophallus muelleri Blume (Araceae) is one of 27 Amorphophallus species occur wild in Indonesia (Sumatera, Java, Floresand Timor). The species is valued for its glucoman content for use in food industry (heathy diet food), paper industry, pharmacyand cosmetics. The cultivation of A. muelleri is hampered by limited genetic quality of seed. The species is triploid (2n=3x=39),the seed is developed apomictically. and pollen production is low. The species is only propagated vegetatively. This may explainthat the species is difficult to breed conventionally and genetic variabillity in the exiting landaraces cultivars is rather limited.Induced mutation using ethyl methan sulfonate is one of techniques to increase genetic variation. The present research is aimed todetermine Lethal Dosage (LD) 50% and 75% of EMS and to study effects of EMS on growth of A, muelleri in vitro cultures for usein induced mutation program. Results of the experiment showed that LD-50 and LD-75 was observed at 0.875% EMS and 0.5%EMS. respectively. Number of shoot, and percentage of rooting culture were decreasing as EMS level concentration increases.