A method for the genetic modification and improvement of Porphyra species utilizing protoplast fusion is disclosed. The method of the invention features the use of conchoporangial branch conchocelis for at least one of the sources of protoplasts for protoplast fusion. Protoplasts produced from conchosporangial branch conchocelis of one species may be mixed with protoplasts produced from either blade material or conchocelis of a second species and fused using either a chemical fusing agent like polyethylene glycol (PEG) or electrofusion. Alternatively, an algal species other than a Porphyra species may be the second source of protoplasts. After fusion has occurred, fusion products are isolated and regenerated to whole plants or used as multicellular material. Because diploid conchocelis material is used as a source of protoplasts for at least one of the parents, regenerants can be produced that have stable, heritable, new genetic compositions, including hybrid, polyploid and aneuploid genomes, useful for strain improvement in the genus Porphyra.
by C-section. They were transferred to Childrens Healthcare of Atlanta at Egleston in DeKalb County at lunchtime Thurs-day, said Katherine Watson, a Northside spokeswoman. No other information on the twins was released to the hospital by their family, but the Hambys did provide updates on the twin
Museum employees, from left, Amanda Kile, Katherine Watson, and Stephanie Harris wear custom headgear while waiting for the space shuttle Discovery to be officially welcomed to the Udvar-Hazy center in Dulles, VA.