Gymnosperm Stem: Cork in Three Year Pinus
cross section: Pinus stem
magnification: 400x
Triarch quadruple stain
Berkshire Community College Bioscience Image Library
During the first year of growth the cutinized epidermis is replaced by protective growth of cork rich periderm. The outer periderm consists of layers of cork cells, the phellem, which produces waterproofing suberin. Cork cells are dead at maturity. Deep to the phellem is a living layer of cork cambium or phellogen and beneath that, layers of cork parenchyma or phelloderm. Many cells in the periderm contain dark staining tannins.
Visit the BCC Bioscience Image featuring the Microscopic World of Plants. www.berkshirecc.edu/biologyimages
Technical Questions:bioimagesoer@gmail.com
Gymnosperm Stem: Cork in Three Year Pinus
cross section: Pinus stem
magnification: 400x
Triarch quadruple stain
Berkshire Community College Bioscience Image Library
During the first year of growth the cutinized epidermis is replaced by protective growth of cork rich periderm. The outer periderm consists of layers of cork cells, the phellem, which produces waterproofing suberin. Cork cells are dead at maturity. Deep to the phellem is a living layer of cork cambium or phellogen and beneath that, layers of cork parenchyma or phelloderm. Many cells in the periderm contain dark staining tannins.
Visit the BCC Bioscience Image featuring the Microscopic World of Plants. www.berkshirecc.edu/biologyimages
Technical Questions:bioimagesoer@gmail.com