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Embryo development in the lady's slipper orchid, Paphiopedilum delenatii, with emphasis on the ultrastructure of the suspensor.
The morphological features of the transfer cell and the absence of cuticular material in the Suspensor cell wall corroborate the hypothesis that the suspensor is the major nutrient uptake site for the developing embryo in the lady's slipper orchid. Expand
Plant regeneration from protocorm-derived callus of Cypripedium formosanum
Totipotent callus of Cypripedium formosanum was induced from seed-derived protocorm segments on a quarter-strength Murashige and Skoog medium containing 4.52 μM 2,4-dichlorophenoxyacetic acid and 1-phenyl-3-(1,2,3-thiadiazol-5-yl)-urea (thidiazuron). Expand
Embryo Development of Cypripedium formosanum in Relation to Seed Germination In Vitro
For seed germination, the results indicate that the timing of seed collection outweighs the composition of medium and the seed pretreatments. Expand
Embryology of Phalaenopsis amabilis var. formosa: embryo development
The results of Nile red staining indicate that a cuticular layer is present only on the surface walls of the embryo proper, but is absent from the suspensor cell wall Cuticular material is also present in the outermost layer of the seed coat and persists through seed maturation. Expand
Effect of Leaf and Plant Age, and Day/Night Temperature on Net CO2 Uptake in Phalaenopsis amabilis var. formosa
The CAM photosynthetic capacity of mature leaves remained high after maturation and began to decline at a leaf age of 240 days, and the trend was consistent with malate fi xation but the highest nocturnal malate concentration was observed in 100-day-old leaves. Expand
Developmental Changes in Endogenous Abscisic Acid Concentrations and Asymbiotic Seed Germination of a Terrestrial Orchid, Calanthe tricarinata Lindl.
It is suggested that high concentrations of endogenous ABA in orchid seeds may play a critical role in arresting embryo growth and in preventing seed germination. Expand
Photosynthetic Light Requirements and Effects of Low Irradiance and Daylength on Phalaenopsis amabilis
8 hours of saturatingPPFat 200 mmolm L2 � s L1 and a 12-hour daylength are sufficient for maximizing photosynthesis and flower production in 'TS97' plants. Expand
Dynamic distribution and the role of abscisic acid during seed development of a lady's slipper orchid, Cypripedium formosanum.
The results indicate that ABA is the key inhibitor of germination in C. formosanum, and the distinct accumulation pattern of ABA suggests that it is synthesized in the cytosol of embryo cells during the early stages of seed development, and then exported to the apoplastic region of the cells for subsequent regulatory processes as seeds approach maturity. Expand
Concentration of 1-methylcyclopropene and the duration of its application affect anti-ethylene protection in Phalaenopsis
It is shown that as long as there is 1-MCP protection, the rapid wilting of flowers caused by ethylene can be delayed, and the minimum concentration required was 0.1 μL L −1, which gave Phalaenopsis plants absolute protection against ethylene damage. Expand