• Journal of The Korean Society of Clinical Toxicology
• /
• v.10 no.2
• /
• pp.122-125
• /
• 2012

Alocasia was originally distributed throughout subtropical and tropical areas. Recently, in Korea, it has been used in air cleaners and in control of humidity. Despite easy access in Korea, there are few reports on Alocasia toxicity. We report on two cases of Alocasia intoxication. One patient was a 16-month-old male, who was admitted with a complaint of irritability after biting leaves of Alocasia. Four hours later, he was discharged without any symptoms. Another patient, a 52-year-old female, complained of oral pain, numbness on the perioral area, dysphonia, swallowing difficulty, and chest and abdominal pain after eating root stuck of alocasia odora. She underwent gastrointestinal fibroscopy (GIF) due to lasting chest and abdominal pain. Finding on GIF showed erythema and swelling in the aryepiglottic fold and larynx. Her symptoms lasted 13 days; she was then discharged without any complications or sequelae.

• Journal of Plant Biotechnology
• /
• v.31 no.1
• /
• pp.61-65
• /
• 2004

In order to micropropagate uniform plantlets of Alocasia cadieri Chantrier in vitro, the shoot tips were cultured on media containing various concentrations of BA and thidiazuron (TDZ). Multiple shoot formation from shoot tips was very effective on medium containing 0.1mg/L TDZ. The formed shoots from shoot tips were separated into a shoot, and cultured on media with BA, TDZ, and NM combination for proliferation. The shoots were multiplied very vigorously on medium with 0.5mg/L TDZ and 0.5mg/L NAA. The rooting and growth of multiplied shoots were more effective on medium with 2.0g/L activated charcoal, rather than those with IBA and NAA. Rooted plantlets show high survival in soil mixed with perlite 1: vermiculite 1 or vermiculite alone.

• Journal of Plant Biotechnology
• /
• v.33 no.2
• /
• pp.117-122
• /
• 2006

Comparative studies on medium supply in bioreactors (raft, immersion and ebb and flood) have revealed that multiplication and growth of Alocasia Amazonica were greatest in the raft system, while lowest in ebb and flood system. In the raft system, the basal part of the shoots was continuously in contact with medium, which enabled a constant uptake of nutrients as well as aeration to the explants. The number and the size of leaf stomata were higher in the raft system compared with immersion and ebb&flood system. In the immersion system, plantlets were deformed and epidermal cells in leaves were irregular with a large intercellular space. The results suggested that the medium supply should be controlled properly to maintain normal and healthy plantlets during liquid cultures in bioreactors Which affects morphology and physiology Of the plantlets.

• Archives of Pharmacal Research
• /
• v.27 no.10
• /
• pp.1020-1022
• /
• 2004

A new ceramide alomacrorrhiza A was isolated from the ethanolic extract of the plant Alocasia macrorrhiza (L.) Schott. Its chemical structure was elucidated as (2S,3S,4R)-2N-[(2'R)-2'- hydroxy-hexacosanoyl]-tetradecane-1,3,4-triol based on extensive 1D, 2D NMR, EI-MS, FABMS, HR-FAB-MS spectroscopic data and chemical degradation studies.

• Plant Biotechnology Reports
• /
• v.2 no.3
• /
• pp.207-212
• /
• 2008

Plantlets of Alocasia amazonica regenerated under a photon flux density (PFD) of 15 or $30{\mu}mol\;m^{-2}s^{-1}$ showed better growth and development than those grown under higher PFDs. While chlorophyll a and chlorophyll b decreased, the number of stomata increased with increasing PFD. Photoperiods also affected plantlet growth and stomatal development. Highest growth was observed for the short photoperiod (8/16 h) and for equinoctial (12/12 h) light and dark periods. Very few stomata developed in the leaves of plantlets grown under a short photoperiod (8/16 h) and the number of stomata increased with increasing light period. In conclusion, both light intensity and photoperiod independently affect growth of A. amazonica and development of stomata, depending on the intensity and duration of light treatment.

• Advances in Traditional Medicine
• /
• v.8 no.3
• /
• pp.316-321
• /
• 2008

A total of 33 extracts representing 26 plant species belonging to 24 families were collected from different regions of Bangladesh, and screened for their in vitro antibacterial activity against several pathogenic Gram-positive and Gram-negative bacterial strains using the conventional disc diffusion method. The most potent activity was exhibited by the extracts of Aegiceras corniculatum, Alocasia fornicata, Ceriops decandra, Cuscuta reflexa, Lasia spinosa, Lantana camara, Pandanus foetidus and Xylocarpus granatum. The extracts of Abtilon indicum, Derris trifoliata, Dendrophthoe falcat, Ruellia tuberosa and X. moluccensis did not show any antibacterial properties at test concentrations.