Comparison of terpenes in extracts from the resin and the bark of the resinous stem canker ofChamaecyparis obtusa andThujopsis dolabrata var.hondae

2002 ◽  
Vol 48 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Nobuyasu Hanari ◽  
Hiroshi Yamamoto ◽  
Ken-ichi Kuroda
Keyword(s):  
Stem Canker ◽  
Resinous Stem Canker

Seasonal Variation in Traumatic Resin Canal Formation in Chamaecyparis Obtusa Phloem

IAWA Journal ◽  
1998 ◽  
Vol 19 (2) ◽  
pp. 181-189 ◽  
Author(s):  
Keiko Kuroda
Keyword(s):  
Annual Ring ◽  
Stem Canker ◽  
Chamaecyparis Obtusa ◽  
Resin Canal ◽  
Annual Rings ◽  
Secondary Phloem ◽  
Resinous Stem Canker ◽  
Traumatic Resin Canals ◽  
Resin Canals ◽  
Artificial Wounding

Trunks of Chamaecyparis obtusa were injured to examine seasonal differences in traumatic resin canal formation in secondary phloem. Even after wounding during winter, differentiation of axial parenchyma into epithelium was initiated, and vertical resin canals formed. After winter wounding, resin canal development was slower and the tangential extent of resin canals was narrower than after spring wounding, and it took one to two months until resin secretion began. After spring wounding, the sites of resin canal formation were the 1- and 2-year-old annual rings of phloem. In August, the location of resin canal formation shifted into the current and 1-year-old annual ring. Resin canals never formed in secondary phloem areas that were 3 or more years old. In C. obtusa trunks that are affected by the resinous stem canker, numerous tangentiallines of resin canals are found throughout the phloem, not just recent and 1- to 2-year-old phloem. The present research indicates that these many lines of resin canals were not formed at one time, and that the stimuli that induce traumatic resin canals must occur repeatedly over many years. The data on artificial wounding effects are useful for understanding resinous stem canker.

scholarly journals Distinction of resin compounds between the healthy bark and the resinous stem canker of Thujopsis dolabrata var. hondae

2003 ◽  
Vol 49 (6) ◽  
pp. 548-552 ◽  
Author(s):  
Nobuyasu Hanari ◽  
Hiroshi Yamamoto ◽  
Ken-ichi Kuroda
Keyword(s):  
Stem Canker ◽  
Resinous Stem Canker

Seasonal resin canal formation and necroses expansion in resinous stem canker-affected Chamaecyparis obtusa

2002 ◽  
Vol 32 (4-5) ◽  
pp. 213-224 ◽  
Author(s):  
T. YAMADA ◽  
M. NAGASHIMA ◽  
C. KAWAGUCHI ◽  
K. OOTSUKI ◽  
N. YANAGITA
Keyword(s):  
Stem Canker ◽  
Chamaecyparis Obtusa ◽  
Resin Canal ◽  
Resinous Stem Canker

Variability and inheritance in macadamia progenies to Phytophthora cinnamomi and P. multivora the causal agents of root rot and stem canker

2021 ◽  
Author(s):  
Olumide S. Jeff-Ego ◽  
Andre Drenth ◽  
Bruce Topp ◽  
Juliane Henderson ◽  
Olufemi A. Akinsanmi
Keyword(s):  
Root Rot ◽  
Phytophthora Cinnamomi ◽  
Stem Canker
Sign in / Sign up

Export Citation Format

Share Document