Life cycles of individual roots in fine root system of Chamaecyparis obtusa Sieb. et Zucc.

2005 ◽  
Vol 10 (3) ◽  
pp. 181-187 ◽  
Author(s):  
Takuo Hishi ◽  
Hiroshi Takeda
Keyword(s):  
Root System ◽  
Fine Root ◽  
Chamaecyparis Obtusa ◽  
Life Cycles

scholarly journals Effect of earthworms on mycorrhization, root morphology and biomass of silver fir seedlings inoculated with black summer truffle (Tuber aestivum Vittad.)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tina Unuk Nahberger ◽  
Gian Maria Niccolò Benucci ◽  
Hojka Kraigher ◽  
Tine Grebenc
Keyword(s):  
Root System ◽  
Root Biomass ◽  
Fine Root ◽  
Abies Alba ◽  
Fine Root Biomass ◽  
Root Tip ◽  
Silver Fir ◽  
Tuber Aestivum ◽  
Root Tips ◽  
Root Parameters

AbstractSpecies of the genus Tuber have gained a lot of attention in recent decades due to their aromatic hypogenous fruitbodies, which can bring high prices on the market. The tendency in truffle production is to infect oak, hazel, beech, etc. in greenhouse conditions. We aimed to show whether silver fir (Abies alba Mill.) can be an appropriate host partner for commercial mycorrhization with truffles, and how earthworms in the inoculation substrate would affect the mycorrhization dynamics. Silver fir seedlings inoculated with Tuber. aestivum were analyzed for root system parameters and mycorrhization, how earthworms affect the bare root system, and if mycorrhization parameters change when earthworms are added to the inoculation substrate. Seedlings were analyzed 6 and 12 months after spore inoculation. Mycorrhization with or without earthworms revealed contrasting effects on fine root biomass and morphology of silver fir seedlings. Only a few of the assessed fine root parameters showed statistically significant response, namely higher fine root biomass and fine root tip density in inoculated seedlings without earthworms 6 months after inoculation, lower fine root tip density when earthworms were added, the specific root tip density increased in inoculated seedlings without earthworms 12 months after inoculation, and general negative effect of earthworm on branching density. Silver fir was confirmed as a suitable host partner for commercial mycorrhization with truffles, with 6% and 35% mycorrhization 6 months after inoculation and between 36% and 55% mycorrhization 12 months after inoculation. The effect of earthworms on mycorrhization of silver fir with Tuber aestivum was positive only after 6 months of mycorrhization, while this effect disappeared and turned insignificantly negative after 12 months due to the secondary effect of grazing on ectomycorrhizal root tips.

Fine root traits in Chamaecyparis obtusa forest soils with different acid buffering capacities

Trees ◽  
2015 ◽  
Vol 30 (2) ◽  
pp. 415-429 ◽  
Author(s):  
Kouhei Miyatani ◽  
Yuki Mizusawa ◽  
Kazuki Okada ◽  
Toko Tanikawa ◽  
Naoki Makita ◽  
...  
Keyword(s):  
Forest Soils ◽  
Fine Root ◽  
Root Traits ◽  
Chamaecyparis Obtusa ◽  
Acid Buffering

Microtopographic refugia against drought in temperate forests: Lower water availability but more extensive fine root system in mounds than in pits

2020 ◽  
Vol 476 ◽  
pp. 118439
Author(s):  
Florence Tauc ◽  
Daniel Houle ◽  
Angélique Dupuch ◽  
Frédérik Doyon ◽  
Audrey Maheu
Keyword(s):  
Root System ◽  
Water Availability ◽  
Fine Root ◽  
Temperate Forests

scholarly journals Relationship between Very Fine Root Distribution and Soil Water Content in Pre- and Post-Harvest Areas of Two Coniferous Tree Species

Forests ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1227
Author(s):  
Moein Farahnak ◽  
Keiji Mitsuyasu ◽  
Takuo Hishi ◽  
Ayumi Katayama ◽  
Masaaki Chiwa ◽  
...  
Keyword(s):  
Water Content ◽  
Root System ◽  
Soil Water ◽  
Soil Water Content ◽  
Tree Species ◽  
Fine Roots ◽  
Fine Root ◽  
Soil Depth ◽  
Tree Cutting ◽  
Coniferous Tree Species

Tree root system development alters forest soil properties, and differences in root diameter frequency and root length per soil volume reflect differences in root system function. In this study, the relationship between vertical distribution of very fine root and soil water content was investigated in intact tree and cut tree areas. The vertical distribution of root density with different diameter classes (very fine <0.5 mm and fine 0.5–2.0 mm) and soil water content were examined along a slope with two coniferous tree species, Cryptomeria japonica (L.f.) D. Don and Chamaecyparis obtusa (Siebold et Zucc.) Endl. The root biomass and length density of very fine roots at soil depth of 0–5 cm were higher in the Ch. obtusa intact tree plot than in the Cr. japonica intact plot. Tree cutting caused a reduction in the biomass and length of very fine roots at 0–5 cm soil depth, and an increment in soil water content at 5–30 cm soil depth of the Ch. obtusa cut tree plot one year after cutting. However, very fine root density of the Cr. japonica intact tree plot was quite low and the soil water content in post-harvest areas did not change. The increase in soil water content at 5–30 cm soil depth of the Ch. obtusa cut tree plot could be caused by the decrease in very fine roots at 0–5 cm soil depth. These results suggest that the distribution of soil water content was changed after tree cutting of Ch. obtusa by the channels generated by the decay of very fine roots. It was also shown that differences in root system characteristics among different tree species affect soil water properties after cutting.

Response of the fine root system in a Norway spruce stand to 13 years of reduced atmospheric nitrogen and acidity input

2010 ◽  
Vol 339 (1-2) ◽  
pp. 435-445 ◽  
Author(s):  
Ulrich Zang ◽  
Norbert Lamersdorf ◽  
Werner Borken
Keyword(s):  
Root System ◽  
Norway Spruce ◽  
Fine Root ◽  
Atmospheric Nitrogen

Intraspecific variation in fine root respiration and morphology in response to in situ soil nitrogen fertility in a 100-year-old Chamaecyparis obtusa forest

Oecologia ◽  
2015 ◽  
Vol 179 (4) ◽  
pp. 959-967 ◽  
Author(s):  
Naoki Makita ◽  
Yasuhiro Hirano ◽  
Takanobu Sugimoto ◽  
Toko Tanikawa ◽  
Hiroaki Ishii
Keyword(s):  
Intraspecific Variation ◽  
Soil Nitrogen ◽  
Root Respiration ◽  
Fine Root ◽  
Chamaecyparis Obtusa ◽  
Nitrogen Fertility

scholarly journals Root System Distribution Influences Substrate Moisture Measurements in Containerized Ornamental Tree Species

2013 ◽  
Vol 23 (6) ◽  
pp. 754-759 ◽  
Author(s):  
Taryn L. Bauerle ◽  
William L. Bauerle ◽  
Marc Goebel ◽  
David M. Barnard
Keyword(s):  
Root System ◽  
Tree Species ◽  
Root Distribution ◽  
Fine Root ◽  
Soil Layer ◽  
Specific Root Length ◽  
Root Systems ◽  
Moisture Sensor ◽  
Substrate Moisture ◽  
Moisture Variability

Substrate moisture sensors offer an affordable monitoring system for containerized tree production. However, root system distribution can vary greatly among species within ornamental container production systems, resulting in variation within substrate readings among sensors within a container. The aim of this study was to examine the relationship of substrate moisture sensor readings in six ornamental trees to their root distribution patterns within a container. Following root anatomical analysis, tree root systems were dissected by root order as a means to separate fine (uptake) roots and coarse (transport) roots. Substrate moisture variability was measured through the deployment of 12 substrate moisture sensors per container. Of the tree species studied, we found the following two patterns of root distribution: a shallow, “conical-shaped,” root system, with the broadest portion of the root system in the shallow soil layer, and a more evenly distributed “cylindrical-shaped” root system. Root system distribution type influenced substrate moisture reading variability. Conical root systems had lower substrate moisture variability and high fine root variability, whereas the opposite was true for cylindrical root systems—most likely due to the larger, coarse woody mass of roots. We were unable to find any correlations between fine root morphological features including root diameter, length, or surface area and substrate moisture variability. However, higher specific root length was associated with higher substrate moisture variability. Classifying a tree’s root system by its growth and distribution within a container can account for variation in substrate moisture readings and help inform future decisions on sensor placement within containerized systems.

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