The Presence of Callose in Cork Cells

Observations of fluorescence with ultraviolet microscopy and staining with transmission electron microscopy indicate that a substance reacting like callose is present as a plugging material in pitlike areas in the walls of mature cork (phellem) cells

Status Report to the Project Advisory Committee on Forest Genetics, October 4-5, 1984

"October 4-5, 1984."Project 3223. Mass production of conifer hybrids -- Handouts

Status report to the Project Advisory Committee on Forest Genetics, March 26-27, 1984

"March 26-27, 1984."Advance reading material distributed before the March 26-27, 1984 meeting of the Forest Genetics Project Advisory Committee. A more comprehensive report is available in the circulated Forest Genetics PAC Report for March 1984.Project 3501. Development of analytical techniques for characterizing wood and fiber and related exploratory research -- Project 3223. Mass production of conifer hybrids

The mass production of conifer hybrids : model systems investigations and embryogenesis studies in Douglas-fir and loblolly pine. Project 3223, report ten : a progress report to the members of the Institute of Paper Chemistry.

"March 3, 1983.""The Institute of Paper Chemistry, Dean W. Einspahr, Morris A. Johnson, John D. Litvay and Devi C. Verma, Forest Biology section.

The mass production of conifer hybrids. Model systems investigations and embryogenesis studies in Douglas-fir and loblolly pine. Project 3223, report nine : a progress report to the members of the Institute of Paper Chemistry

"March 5, 1982.""The Institute of Paper Chemistry, Dean W. Einspahr, Morris A. Johnson, John D. Litvay, and Devi C. Verma, Forest Biology Group.

Recent progress in conifer somatic embryogenesis research

"July, 1982."Media development for cell suspensions of conifers -- Some redox considerations in conifer tissue culture."This publication comprises two papers that were presented at the Fifth International Congress for Plant Tissue and Cell Culture held in Japan, July 10-16, 1982. These presentations contain results of recent research conducted by the conifer tissue culture team at The Institute of Paper Chemistry (Project 3223). The current major goal of this research team is to develop a reliable process for the mass production of somatic embryos from suspension cultures of conifer cells.

The mass production of conifer hybrids. Project 3223, report eleven : a progress report to the members of the Institute of Paper Chemistry.

"February 29, 1984.""The Institute of Paper Chemistry, Dean W. Einspahr, Morris A. Johnson, John D. Litvay and Russell P. Feirer, Forest Biology section.

The mass production of conifer hybrids. Embryogenesis in cell suspensions of Douglas-fir and loblolly pine: juvenile experimental materials, phase one. Project 3223, report eight : a progress report to the members of the Institute of Paper Chemistry

"March 1, 1981.""The Institute of Paper Chemistry, D. J. Durzan, Dean W. Einspahr, John D. Litvay, Morris A. Johnson and Devi C. Verma, Forest Biology Group.

Use of model systems in gymnosperm embryogenesis

"November, 1981.

Conifer suspension culture medium development using analytical data from developing seeds

"November, 1981.