Roentogenological Observation of Callus-Formation, Its Form & Growth

In situ observation of antisite defect formation during crystal growth.

In situ x-ray diffraction (XRD) coupled with molecular dynamics (MD) simulations have been used to quantify antisite defect trapping during crystallization. Rietveld refinement of the XRD data revealed a marked lattice distortion which involves an a axis expansion and a c axis contraction of the stable C11b phase. The observed lattice response is proportional in magnitude to the growth rate, su...

The growth of and organ formation from callus tissue of sorghum.

Callus formation and remodeling at titanium implants.

Titanium is biocompatible with bone tissue, and during the healing process bone makes intimate contact with the implant surface. Although much is known about the long-term healing of implants, less is known about the callus formation at implants. In this study, the histology of bone healing was studied during the period between 4 and 14 days. Incisions were made in rat tibia. Some incisions wer...

Callus formation and plant regeneration from callus through somatic embryo structures in Cymbidium orchid

Embryogenic calli were induced from longitudinally bisected segments of protocorm-like bodies (PLBs) of Cymbidium Twilight Moon ‘Day Light’, a hybrid orchid, on modified Vacin and Went medium [Bot. Gaz. 110 (1949) 605] supplemented with 1-naphthaleneacetic acid (NAA) or 2,4-dichlorophenoxyacetic acid (2,4-D) alone or in combination with N-phenyl-N′-1,2,3-thiadiazol-5-yl urea (TDZ) within 1 mont...

AtWuschel Promotes Formation of the Embryogenic Callus in Gossypium hirsutum

Upland cotton (Gossypium hirsutum) is one of the most recalcitrant species for in vitro plant regeneration through somatic embryogenesis. Callus from only a few cultivars can produce embryogenic callus (EC), but the mechanism is not well elucidated. Here we screened a cultivar, CRI24, with high efficiency of EC produce. The expression of genes relevant to EC production was analyzed between the ...