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Wall structure of terminal latewood tracheids of healty and declining silver fir trees in the dinaric region, Slovenia
Schmitt, Uwe (Avtor), Grünwald, Claudia (Avtor), Gričar, Jožica (Avtor), Koch, Gerald (Avtor), Čufar, Katarina (Avtor)

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Izvleček
Fir trees (Abies alba Mill.) in a permanently monitored forest in the Di-naricregion 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

Jezik:Angleški jezik
Ključne besede:Abies alba Mill., latewood tracheids, cell wall, lignification, electron microscopy, UV microspectrophotometry
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Leto izida:2003
Založnik:Rijksherbarium/Hortus botanicus
Št. strani:Str. 41-51
Številčenje:Vol. 24, No. 1
UDK:630
ISSN pri članku:0928-1541
COBISS.SI-ID:1017225 Povezava se odpre v novem oknu
Število ogledov:706
Število prenosov:38
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:IAWA journal
Skrajšan naslov:IAWA j.
Založnik:Rijksherbarium/Hortus botanicus
ISSN:0928-1541
COBISS.SI-ID:29065 Povezava se odpre v novem oknu

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