Traumatic resin ducts induced by methyl jasmonate in Pinus spp

Trees ◽  
2020 ◽  
Author(s):  
Adrián López-Villamor ◽  
Rafael Zas ◽  
Andrea Pérez ◽  
Yonatan Cáceres ◽  
Marta Nunes da Silva ◽  
...  
Keyword(s):  
Methyl Jasmonate ◽  
Resin Ducts ◽  
Traumatic Resin Ducts ◽  
Pinus Spp

scholarly journals Methyl Jasmonate Induces Traumatic Resin Ducts, Terpenoid Resin Biosynthesis, and Terpenoid Accumulation in Developing Xylem of Norway Spruce Stems

2002 ◽  
Vol 129 (3) ◽  
pp. 1003-1018 ◽  
Author(s):  
Diane Martin ◽  
Dorothea Tholl ◽  
Jonathan Gershenzon ◽  
Jörg Bohlmann
Keyword(s):  
Methyl Jasmonate ◽  
Norway Spruce ◽  
Resin Ducts ◽  
Traumatic Resin Ducts

Effects of Weevil Feeding on Resin Duct Density and Radial Increment in Lodgepole Pine

1972 ◽  
Vol 2 (1) ◽  
pp. 11-15 ◽  
Author(s):  
H. F. Cerezke
Keyword(s):  
Radial Growth ◽  
Lodgepole Pine ◽  
Radial Increment ◽  
Resin Ducts ◽  
Resin Duct ◽  
Traumatic Resin Ducts

Wood discs cut from 23-year-old lodgepole pine (Pinuscontorta Dougl. var. lalifolia Engelm.) stems were analyzed for vertical and radial resin duct densities adjacent to basal injuries caused by the weevil, Hylobiuswarreni Wood. The injury from single attacks continued for at least 2 years and was characterized by reduced radial growth and an abundance of vertical 'traumatic' resin ducts above the wounds. No increase in radial duct density was detected above the wounds.

Increment Coring Induced Traumatic Resin Ducts in White Spruce But Not in Lodgepole Pine

2020 ◽  
Vol 76 (1) ◽  
pp. 54 ◽  
Author(s):  
Jennifer G. Klutsch ◽  
Chen X. Kee ◽  
Eduardo P. Cappa ◽  
Blaise Ratcliffe ◽  
Barb R. Thomas ◽  
...  
Keyword(s):  
Lodgepole Pine ◽  
White Spruce ◽  
Resin Ducts ◽  
Traumatic Resin Ducts

scholarly journals Traumatic resin ducts in Larix decidua stems impacted by debris flows

2008 ◽  
Vol 28 (2) ◽  
pp. 255-263 ◽  
Author(s):  
M. Bollschweiler ◽  
M. Stoffel ◽  
D. M. Schneuwly ◽  
K. Bourqui
Keyword(s):  
Debris Flows ◽  
Larix Decidua ◽  
Resin Ducts ◽  
Traumatic Resin Ducts

Formation of traumatic resin ducts in the phloem of western redcedar (Thuja plicata) roots following abiotic injury and pathogenic invasion by Armillaria ostoyae

IAWA Journal ◽  
2011 ◽  
Vol 32 (3) ◽  
pp. 351-359 ◽  
Author(s):  
Michelle R. Cleary ◽  
Terry Holmes
Keyword(s):  
Thuja Plicata ◽  
Western Redcedar ◽  
Fungal Invasion ◽  
Resin Ducts ◽  
Resin Duct ◽  
Phloem Parenchyma ◽  
Armillaria Ostoyae ◽  
Traumatic Resin Ducts ◽  
Close Proximity ◽  
Periderm Formation

Anatomical changes involved in traumatic phloem resin duct (TPRD) formation in western redcedar (Thuja plicata) roots were examined following abiotic wounding and fungal invasion by Armillaria ostoyae. Following necrophylactic periderm formation, hyperplasia and expansion of a band of phloem parenchyma cells occurred in close proximity to the vascular cambium and schizogenous and lysigenous separation of its derivatives resulted in a series of longitudinal resin ducts in the inner to mid-phloem region. Fungal invasion appeared to amplify traumatic resin duct formation in the phloem. While traumatic cavities in the phloem have been reported for other Cupressaceae, this is the first report documenting TPRD formation in western redcedar.

scholarly journals Dendrometric variables and traumatic resin ducts in pine species associated with wood-stripping: a traditional practice in the conifer forests of Central Mexico

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Guadalupe Díaz-Carranza ◽  
Agustina Rosa Andrés Hernandez ◽  
Susana Guillén ◽  
Sombra Patricia Rivas-Arancibia ◽  
Adriana Montoya Esquivel
Keyword(s):  
National Park ◽  
Tree Age ◽  
Traditional Practice ◽  
Tissue Samples ◽  
Resin Ducts ◽  
Pinus Species ◽  
Traumatic Resin Ducts ◽  
La Malinche ◽  
La Malinche National Park ◽  
Pine Species

Background: In La Malinche National Park (LMNP), Pinus species are exploited mainly because they are a non-woody source of products such as ocote (resinous wood chips) and wood.   Questions/Objective: Which Pinus species are subjected to wood-stripping (WS) in the LMNP? What are their dendrometric characteristics? Do WS trees present traumatic resin ducts associated with the ocoteo practice? Does the number of trees subjected to WS increase with altitude? Study site and dates: La Malinche National Park; Tlaxcala, México, 2017-2018. Methods: Random stratified sampling was done in a total of 33 plots in three different altitudes to quantify the number of damaged and undamaged trees and the total height and diameter per tree in each plot. Increment borers were obtained to estimate tree age, samples were taken for taxonomic determination, and tissue samples to evaluate mechanical damage. Results: Pine species subjected to wood-stripping (ocoteo) were P. leiophylla, P. montezumae, P. pseudostrobus, and P. teocote, with P. montezumae being the most affected in high and mid altitudes. WS trees were those with the greatest diameter and with the largest number of traumatic resin ducts. The species having the highest number of traumatic resin ducts was P. teocote. Conclusions: WS intensity in the LMNP is greater in the mid and low altitudes and in trees of greater diameter, height, and age. The species most affected by WS is P. montezumae and all WS individuals have a significantly higher number of traumatic resin ducts.

On the Occurrence of Trabeculae With Special Consideration of Diseased Trees

IAWA Journal ◽  
1986 ◽  
Vol 7 (4) ◽  
pp. 319-341 ◽  
Author(s):  
Dietger Grosser
Keyword(s):  
Systematic Study ◽  
Compression Wood ◽  
Annual Ring ◽  
Forest Decline ◽  
Sufficient Evidence ◽  
Normal Wood ◽  
Annual Rings ◽  
Resin Ducts ◽  
Traumatic Resin Ducts ◽  
Wound Tissue

Comprehensive investigations on trabeculae in softwoods have shown that they occur much more frequently than has hitherto generally been assumed. A systematic study oflarge series of microtome sections, i.e., transverse sections and particularly radial sections of extended annual ring sequences will, as a rule, give sufficient evidence for the occurrence of trabeculae and related structures. Apart from this phenomenon an increased occurrence of trabeculae was often found in the annual rings of healthy and diseased trees from forest decline areas from the middle of the 1970's onwards. Moreover, trabeculae occur with particularly great frequency and in significantly larger numbers than in nonnal wood in association with wound tissue fonnation as a consequence of injuries, in spruce with hazel growth, or in cedars with traumatic resin ducts. Also, in compression wood trabeculae are fonned much more often than in normal wood. A detailed survey of trabeculae structure and possible patterns of trabeculae arrangement is also given.

Sign in / Sign up

Export Citation Format

Share Document