scholarly journals Ectomycorrhizal Fungi Associated with Pinus densiflora Seedlings under Flooding Stress

2021 ◽  
Vol 13 (8) ◽  
pp. 4367
Author(s):  
Yoonhee Cho ◽  
Shinnam Yoo ◽  
Myung Soo Park ◽  
Ji Seon Kim ◽  
Chang Sun Kim ◽  
...  
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Internal Transcribed Spacer ◽  
Pinus Densiflora ◽  
Red Pine ◽  
Fungal Communities ◽  
Thelephora Terrestris ◽  
Suillus Luteus ◽  
Flooding Stress ◽  
Pine Seedlings ◽  
Rhizopogon Luteolus

Flooding is an environmental stress for plants that not only limits aeration and nutrient acquisition, but also disturbs underground plant-associated fungal communities. Despite frequent flooding, red pine (Pinus densiflora) seedlings thrive in streamside environments. However, whether the compatible ectomycorrhizal fungi (EMF) of red pine are affected by natural flooding is unclear. As EMF are vital symbionts for the development of many trees and allow them to overcome various environmental stresses, in this study, the EMF species associated with red pine seedlings in a streamside environment in Korea were investigated after flooding. The EMF species in 47 seedlings collected from the streamside site were identified by observing their different morphotypes using internal transcribed spacer sequence analysis, and a total of 10 EMF species were identified. The EMF species diversity was lower than that in samples collected from a nearby forest analyzed as a control. The dominant EMF species of streamside seedlings included Amphinema spp., Rhizopogon luteolus, Suillus luteus, and Thelephora terrestris. This study could serve as a basis for investigating the mechanisms by which advantageous EMF aid plant development under flooding stress.

Effects of canopy N uptake on foliar CO2 assimilation rates and biomass production and allocation in Japanese red pine seedlings

2012 ◽  
Vol 42 (7) ◽  
pp. 1395-1403 ◽  
Author(s):  
Masaaki Chiwa ◽  
Toshihide Matsuda ◽  
Nobutake Nakatani ◽  
Tsuyoshi Kobayashi ◽  
Atsushi Kume ◽  
...  
Keyword(s):  
Root Biomass ◽  
Pinus Densiflora ◽  
N Uptake ◽  
C Sequestration ◽  
Red Pine ◽  
N Availability ◽  
Atmospheric N Deposition ◽  
Japanese Red Pine ◽  
Pine Seedlings ◽  
Psii Photochemistry

To investigate the direct physiological effects of CNU (canopy nitrogen uptake), three mist solutions (control, N1, and N2 with 0.03, 13.1, and 32.7 kg NH4+-N·ha–1, respectively) were sprayed on Japanese red pine (Pinus densiflora Sieb. et Zucc.) seedlings three times a week for three months. Waterproof sheets protected the surface soil during misting to avoid adding N to the soil. The results show N mist treatments to foliage increased needle N availability in proportion to N dose, which was large enough to cause greater N and chlorophyll content in the needles. This suggests that N is rapidly absorbed, is directly assimilated by the needles, and is used in photosynthesis. These increases resulted in higher maximum net CO2 assimilation rates (Amax) and maximum quantum yield of PSII photochemistry (Fv/Fm) of pine seedlings and subsequently increased bud and root biomass. Increased root biomass reduced the sensitivity of the shoot-to-root ratio to increased N availability in the foliage. In conclusion, our study supported the idea that CNU should be taken into consideration when evaluating the impacts of elevated atmospheric N deposition on forest C sequestration and biomass allocation.

Colonization, isolation, and cultural descriptions of Thelephora terrestris and other ectomycorrhizal fungi of shortleaf pine seedlings grown in fumigated soil

1970 ◽  
Vol 48 (2) ◽  
pp. 207-211 ◽  
Author(s):  
Donald H. Marx ◽  
W. Craig Bryan ◽  
Larry F. Grand
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Copper Sulfate ◽  
Mercuric Chloride ◽  
Chemical Characterization ◽  
The Other ◽  
Cultural Groups ◽  
Shortleaf Pine ◽  
Thelephora Terrestris ◽  
Pine Seedlings

Nineteen fungal symbionts were isolated from ectomycorrhizae of 7- to 9-month-old shortleaf pine seedlings grown in heavily fumigated soil in a greenhouse. Cultural and chemical characterization revealed five distinct cultural groups. One symbiont group was culturally identical with isolates of Thelephora terrestris, a primary symbiont colonizer of fumigated soil. The other four groups of ectomycorrhizal fungi belonged to different species. Numerous surface sterilants were tested in attempts to isolate symbionts, but only mercuric chloride (100 p.p.m.) and copper sulfate (2.5 and 5%) were effective.

scholarly journals Ectomycorrhizal Fungi and Mineral Interactions in the Rhizosphere of Scots and Red Pine Seedlings

Soils ◽  
2017 ◽  
Vol 1 (1) ◽  
pp. 5 ◽  
Author(s):  
Zsuzsanna Balogh-Brunstad ◽  
C. Keller ◽  
Zhenqing Shi ◽  
Håkan Wallander ◽  
Susan Stipp
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Red Pine ◽  
Pine Seedlings

Distributions and Compositions of Brominated Diphenyl Ethers-209 in Pine Seedlings Inoculated with Ectomycorrhizal Fungi

2019 ◽  
Vol 230 (12) ◽  
Author(s):  
Zhugui Wen ◽  
Mengyu Chen ◽  
Huilong Lu ◽  
Shiqi Huang ◽  
Jincheng Xing ◽  
...  
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Brominated Diphenyl Ethers ◽  
Pine Seedlings ◽  
Diphenyl Ethers

Simazine and Phosphorus Interactions in Red Pine Seedlings

Weeds ◽  
1967 ◽  
Vol 15 (4) ◽  
pp. 339 ◽  
Author(s):  
P. S. Dhillon ◽  
W. R. Byrnes ◽  
C. Merritt
Keyword(s):  
Red Pine ◽  
Pine Seedlings
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