WALL STRUCTURE OF TERMINAL LATEWOOD TRACHEIDS OF HEALTHY AND DECLINING SILVER FIR TREES IN THE DINARIC REGION, SLOVENIA

in IAWA Journal
Restricted Access
Get Access to Full Text
Rent on DeepDyve

Have an Access Token?



Enter your access token to activate and access content online.

Please login and go to your personal user account to enter your access token.



Help

Have Institutional Access?



Access content through your institution. Any other coaching guidance?



Connect

Fir trees (Abies alba Mill.) in a permanently monitored forest in the Dinaric region in Slovenia respond to crown damages by distinctly reducing their ring widths. According to transmission electron microscopy (TEM) and UV-microspectrophotometry (UMSP) of cambium-adjacent latewood tracheids of affected trees, the secondary wall formation and lignification were completed by the middle of October. In samples taken at the same date from healthy looking silver firs, the S3 and the warty layer were not yet present in cambium-adjacent latewood tracheids. Additionally, their inner S2 showed lower lignin deposition, whereas the compound middle lamella, S1 and outer S2 were distinctly lignified as revealed by TEM and UMSP. It is assumed that these youngest tracheids of healthy trees will later undergo lignification or remain less lignified. From these observations we conclude that the cambial activity at breast height ends later in healthy silver fir trees as compared to declining trees.

Information

Content Metrics

Content Metrics

All Time Past Year Past 30 Days
Abstract Views 9 9 5
Full Text Views 9 9 9
PDF Downloads 2 2 2
EPUB Downloads 0 0 0