Abstract
Shoots of “San Castrese” and “Portici” apricots (Prunus armeniaca L.) free of cultivable bacteria, shoots of the same origin exhibiting bacterial contamination after repeated subcultures, and contaminated shoots treated with cefotaxime were compared for gas exchange, proliferation rate, and fresh and dry weight. Cultures of San Castrese contaminated byBacillus circulans andSphingomonas paucimobilis, and of Portici contaminated withStaphylococcus hominis andMicrococcus kristinae, including those treated with cefotaxime, showed comparable shoot weights and lower proliferation rates than healthy cultures. Bacteria, even if not visible until the end of subculture, markedly influenced the gaseous composition of the jar headspace. Healthy cultures clearly showed photosynthetic activity at 60 μM·m−2·s−1 photosynthetically active radiation; in contrast, oxygen quickly decreased and carbon dioxide increased in contaminated cultures, including those treated with cefotaxime, in which bacteria became visible in the culture medium only after repeated subcultures.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: In Vitro Cellular & Developmental Biology - Plant
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
