scholarly journals Genetic Variation for Resistance to Phytophthora Root Rot in Eastern White Pine Seedlings

Forests ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 161 ◽  
Author(s):  
◽  
◽  
Keyword(s):  
Genetic Variation ◽  
Root Rot ◽  
White Pine ◽  
Eastern White Pine ◽  
Phytophthora Root Rot ◽  
Pine Seedlings

Response of eastern white pine and associated foliar, blister rust, canker and root rot pathogens to climate change

2018 ◽  
Vol 423 ◽  
pp. 18-26 ◽  
Author(s):  
Stephen A. Wyka ◽  
Isabel A. Munck ◽  
Nicholas J. Brazee ◽  
Kirk D. Broders
Keyword(s):  
Climate Change ◽  
Root Rot ◽  
White Pine ◽  
Eastern White Pine ◽  
Blister Rust

Pathogenicity of three fungal associates of Hylobiuspales and Pissodesnemorensis (Coleoptera: Curculionidae) to eastern white pine

1992 ◽  
Vol 22 (9) ◽  
pp. 1438-1440 ◽  
Author(s):  
R.J. Nevill ◽  
S.A. Alexander
Keyword(s):  
The Other ◽  
Lesion Length ◽  
Malt Extract ◽  
Perfect State ◽  
White Pine ◽  
Eastern White Pine ◽  
Pine Seedlings ◽  
Blue Stain Fungi ◽  
Blue Stain ◽  
Fungal Associates

The pathogenicity of three fungal associates of the pine reproduction weevils, Hylobiuspales (Hbst) and Pissodesnemorensis Germar, to eastern white pine (Pinusstrobus L.) was investigated. Three-year-old eastern white pine seedlings were inoculated with isolates of Leptographiumprocerum (Kendr.) Wingf., Ophiostomapiceae (Munch) Sydow & Sydow, or a Graphium species that produced no perfect state. The inoculations were made by wounding the seedlings and inserting a block of malt extract agar colonized by the respective fungi into the wounds. After 3 months, the wounds of seedlings inoculated with L. procerum were resinous and there were significantly longer lesions in the bark and sapwood than in seedlings inoculated with the other fungi. Based on reisolation from the xylem, both L. procerum and O. piceae colonized the sapwood beyond lesions or any visual discoloration, but the Graphium species did not. These results confirm the pathogenicity of L. procerum and O. piceae and suggests that lesion length alone does not fully characterize colonization by some blue stain fungi.

Growth and physiological response of eastern white pine seedlings to partial cutting and site preparation

2007 ◽  
Vol 240 (1-3) ◽  
pp. 151-164 ◽  
Author(s):  
Jean-François Boucher ◽  
Pierre Y. Bernier ◽  
Hank A. Margolis ◽  
Alison D. Munson
Keyword(s):  
Physiological Response ◽  
Site Preparation ◽  
White Pine ◽  
Eastern White Pine ◽  
Partial Cutting ◽  
Pine Seedlings

scholarly journals Management of phytophthora root rot in radiata pine seedlings

2009 ◽  
Vol 58 (4) ◽  
pp. 723-730 ◽  
Author(s):  
T. Reglinski ◽  
T. M. Spiers ◽  
M. A. Dick ◽  
J. T. Taylor ◽  
J. Gardner
Keyword(s):  
Root Rot ◽  
Radiata Pine ◽  
Phytophthora Root Rot ◽  
Pine Seedlings

Effect of aluminum on the growth, anatomy, and nutrient content of ectomycorrhizal and nonmycorrhizal eastern white pine seedlings

1995 ◽  
Vol 25 (8) ◽  
pp. 1252-1262 ◽  
Author(s):  
George A. Schier ◽  
Carolyn J. Mcquattie
Keyword(s):  
Root Growth ◽  
Nutrient Content ◽  
Ectomycorrhizal Fungus ◽  
Al Toxicity ◽  
White Pine ◽  
Eastern White Pine ◽  
Solution Ph ◽  
Foliar Symptoms ◽  
Pine Seedlings ◽  
Uptake Of Nutrients

Effect of aluminum (Al) on the growth, anatomy, and nutrient content of eastern white pine (Pinusstrobus L.) was determined by growing newly germinated seedlings for 12 weeks in sand irrigated with nutrient solution (pH 3.8) containing 0, 12.5, 25, 50, 75, or 100 mg/L of Al. To determine the influence of mycorrhizal infection on Al toxicity, half of the seedlings were inoculated with the ectomycorrhizal fungus Pisolithustinctorius (Pers.) Coker & Couch. Across Al concentrations, shoot growth (height, needle length, biomass) but not root growth (lateral root length, biomass) was significantly greater in ectomycorrhizal (ECT) than nonmycorrhizal (NM) seedlings. Aluminum significantly decreased shoot and root growth in ECT and NM seedlings but had less effect on growth in ECT seedlings. Foliar symptoms of Al toxicity (chlorosis, tip necrosis) were more pronounced in NM than in ECT seedlings. Cellular and ultrastructural injury to needles and root meristematic tissues was observed at lower concentrations of Al in NM seedlings than in ECT seedlings. Amelioration of Al toxicity by mycorrhizal colonization appeared to result from enhanced uptake of nutrients, especially P, rather than to reduced uptake of Al.

Sign in / Sign up

Export Citation Format

Share Document