Chemistry: molecular biology and microbiology – Plant cell or cell line – per se ; composition thereof;... – Culture – maintenance – or preservation techniques – per se
Reexamination Certificate
2011-03-08
2011-03-08
McCormick Ewoldt, Susan B (Department: 1661)
Chemistry: molecular biology and microbiology
Plant cell or cell line, per se ; composition thereof;...
Culture, maintenance, or preservation techniques, per se
C435S420000, C435S431000
Reexamination Certificate
active
07901938
ABSTRACT:
A method of mass producing potato seedlings, involves collecting growing points of seed potatoes and culturing the growing points in a liquid or solid medium; introducing in vitro plantlets obtained from the culture of the growing points to solid culture; and removing the in vitro plantlets from the solid culture, and planting through stem cutting and acclimatizing the in vitro plantlets in deep flow culture, in which a nutrient solution is circulating. Upon planting in hydroponic facilities, such potato seedlings have high adaptability to the external environment and thus rapidly, uniformly generate roots in a short time. The rapid root anchoring prevents planted seedlings from withering, leading to death, growing poorly, and the like. The direct planting of in vitro plantlets through stem cutting without a separate acclimatization process shortens the overall production period of potato seedlings by omitting the acclimatization process.
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Jiménez et al., “Improved production of potato microtubers using a temporary immersion system,” Plant Cell. Tissue and Organ Culture 69: 19-23, 1999.
Koesan County
Locke Lord Bissell & Liddell LLP
McCormick Ewoldt Susan B
LandOfFree
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