Effect of three ectomycorrhizal fungi on growth and phosphorus uptake of Pinus silvestris seedlings at increasing phosphorus levels

1986 ◽  
Vol 64 (11) ◽  
pp. 2753-2757 ◽  
Author(s):  
A. Tyminska ◽  
F. Le Tacon ◽  
J. Chadoeuf
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Phosphorus Uptake ◽  
Ectomycorrhizal Fungus ◽  
Laccaria Laccata ◽  
Pinus Silvestris ◽  
Thelephora Terrestris ◽  
Intensity Of Infection ◽  
Hebeloma Crustuliniforme ◽  
Different Levels ◽  
Phosphorus Levels

The objective of this study was to determine the different effects of three ectomycorrhizal fungi (Laccaria laccata, Hebeloma crustuliniforme, and Thelephora terrestris) on the growth and mineral nutrition of Pinus silvestris at different levels of soluble phosphorus. Even a low intensity of infection by Laccaria laccata stimulated Pinus silvestris growth greatly. The ability of this ectomycorrhizal fungus to increase Pinus silvestris growth seemed to be more related to its capacity to produce growth substances than to its capacity to stimulate phosphorus uptake. The poor efficiency of Hebeloma crustuliniforme compared with Laccaria laccata at any level of phosphorus could result from differences in diversion of carbohydrates from the host to fungal structures.

scholarly journals Inoculación micorrízica de Pinus ponderosa en el vivero forestal Junín de Los Andes, Argentina

1992 ◽  
Vol 6 (2) ◽  
pp. 157-167
Author(s):  
Hernán Peredo López ◽  
Oriele Alonso ◽  
Eduardo Valenzuela
Keyword(s):  
Pinus Ponderosa ◽  
Pisolithus Tinctorius ◽  
Laccaria Laccata ◽  
Thelephora Terrestris ◽  
Hebeloma Crustuliniforme

En el vivero forestal de Junín de los Andes, Argentina (40º S, 71º W) se realizó un ensayo de inoculación micorrízica de presiembra en Octubre de 1988. Después de fumigar el suelo con Bromuro de metilo se formaron platabandas y se establecieron 30 parcelas de 1 m², separadas cada una por 30 cm, en un diseño de bloques al azar. La inoculación se realizó con inóculo sólido de Laccaria laccata, Hebeloma crustuliniforme, Thelephora terrestris y Pisolithus tinctorius, obtenido en medio Melin-Norkrans modificado. En cada bloque se usaron como controles 1 parcela con suelo de vivero y humus (1:1) y una con suelo de vivero solo. Después de la inoculación en la hilera se sembró semilla de Pinus ponderosa con una densidad de 0,5 kg/m². Tres meses más tarde se extrajeron 10 plantas al azar de cada parcela y se les midió el porcentaje de micorrización, el largo del tallo y raíz y sus respectivos pesos húmedos y secos. Los tratamientos T. terrestris y P. tinctorius fueron significativamente mejores en largo de tallo, proporción peso seco tallo/peso seco raíz e índice de calidad de las plantas. Ambos controles fueron significativamente mejores que el tratamiento L. laccata.

Effect of aminocyclopropane carboxylic acid and aminoethoxyvinylglycine on ethylene production by ectomycorrhizal fungi

1989 ◽  
Vol 67 (2) ◽  
pp. 483-485 ◽  
Author(s):  
L. A. Rupp ◽  
H. E. DeVries II ◽  
K. W. Mudge
Keyword(s):  
Carboxylic Acid ◽  
Ectomycorrhizal Fungi ◽  
Ethylene Production ◽  
Higher Plants ◽  
Ectomycorrhizal Fungus ◽  
Laccaria Laccata ◽  
Ethylene Formation

Aminoethoxyvinylglycine, an inhibitor of ethylene production in higher plants, does not inhibit methionine-induced ethylene production by the ectomycorrhizal fungus Laccaria laccata (Scop, ex Fr.) Berk. & Br. Aminocyclopropane carboxylic acid is not a precursor of ethylene formation by L. laccata or Hebeloma crustiliniforme.

Effect of Laccaria bicolor strains inoculated on Douglas-fir (Pseudotsuga menziesii) several years after nursery inoculation

2000 ◽  
Vol 30 (3) ◽  
pp. 360-371 ◽  
Author(s):  
M -A Selosse ◽  
D Bouchard ◽  
F Martin ◽  
F Le Tacon
Keyword(s):  
Pseudotsuga Menziesii ◽  
Ectomycorrhizal Fungi ◽  
Ectomycorrhizal Fungus ◽  
Douglas Fir ◽  
Laccaria Bicolor ◽  
Laccaria Laccata ◽  
Naturally Occurring ◽  
American Strain

In the Saint-Brisson experiment conducted in central France, the American strain of the ectomycorrhizal fungus Laccaria bicolor (Maire) P.D. Orton S238N and the French strain L. bicolor 81306 inoculated on containerized Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings increased by 60% the total volume of wood produced 8 years after outplanting as compared with uninoculated but naturally mycorrhizal trees. The two strains introduced 10 years before in the inoculated plots are still present and dominant; they did not prevent the colonization of Douglas-fir roots by naturally occurring ectomycorrhizal fungi but allowed for the establishment of a very diversified symbiotic microflora. Eight to 12 years after outplanting, all the Douglas-fir plots were colonized by Laccaria laccata (Scop.:Fr.) Cooke or L. bicolor strains, as well as some other species, independently of the nursery treatments. With one exception in one plot, the presence of indigenous genets in the control treatments may have prevented the vegetative colonization of the inside of the noninoculated plots by the two introduced strains.

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.

scholarly journals Metallothionein-like peptides involved in sequestration of Zn in the Zn-accumulating ectomycorrhizal fungus Russula atropurpurea

Metallomics ◽  
2014 ◽  
Vol 6 (9) ◽  
pp. 1693-1701 ◽  
Author(s):  
Tereza Leonhardt ◽  
Jan Sácký ◽  
Pavel Šimek ◽  
Jiří Šantrůček ◽  
Pavel Kotrba
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Ectomycorrhizal Fungus ◽  
Substantial Portion ◽  
Natural Conditions ◽  
Binding Peptides ◽  
Russula Atropurpurea

The first evidence of the existence of gene-encoded Zn-binding peptides that sequester a substantial portion of intracellular Zn in ectomycorrhizal fungi under natural conditions.

scholarly journals Cadmium-Responsive Thiols in the Ectomycorrhizal Fungus Paxillus involutus

2004 ◽  
Vol 70 (12) ◽  
pp. 7413-7417 ◽  
Author(s):  
Mikael Courbot ◽  
Laurent Diez ◽  
Roberta Ruotolo ◽  
Michel Chalot ◽  
Pierre Leroy
Keyword(s):  
Molecular Mass ◽  
Ectomycorrhizal Fungi ◽  
High Performance ◽  
Metal Tolerance ◽  
Ectomycorrhizal Fungus ◽  
Paxillus Involutus ◽  
Cellular Mechanisms ◽  
Chromatography Method ◽  
Relative Lack ◽  
Liquid Chromatography Method

ABSTRACT Molecular and cellular mechanisms underlying the sustained metal tolerance of ectomycorrhizal fungi are largely unknown. Some of the main mechanisms involved in metal detoxification appear to involve the chelation of metal ions in the cytosol with thiol-containing compounds, such as glutathione, phytochelatins, or metallothioneins. We used an improved high-performance liquid chromatography method for the simultaneous measurement of thiol-containing compounds from cysteine and its derivatives (γ-glutamylcysteine, glutathione) to higher-molecular-mass compounds (phytochelatins). We found that glutathione and γ-glutamylcysteine contents increased when the ectomycorrhizal fungus Paxillus involutus was exposed to cadmium. An additional compound with a 3-kDa molecular mass, most probably related to a metallothionein, increased drastically in mycelia exposed to cadmium. The relative lack of phytochelatins and the presence of a putative metallothionein suggest that ectomycorrhizal fungi may use a different means to tolerate heavy metals, such as Cd, than do their plant hosts.

scholarly journals Effects of vitamins, temperature and pH on the biomass production by ectomycorrhizal fungi

2014 ◽  
Vol 31 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Aleksandra Pokojska ◽  
Maria Kampert ◽  
Henryk Różycki ◽  
Edmund Strzelczyk
Keyword(s):  
Biomass Production ◽  
Ectomycorrhizal Fungi ◽  
Biomass Yield ◽  
Suillus Bovinus ◽  
Hebeloma Crustuliniforme ◽  
Pisolithus Arhizus ◽  
Three Factor

Studies were carried out to determine the effect of vitamins, temperature and pH on the biomass production by ectomycorrhizal fungi: <i>Laccuria bicolor, Hebeloma crustuliniforme, Suillus bovinus</i> and <i>Pisolithus arhizus</i>. Responses of particular organisms were different Three-factor ANOVA which enables the comparison of the effect of experimental factors on biomass yield has shown that the pH of the medium had a stronger effect on <i>L. bicolor, H. crustuliniforme</i> and <i>S. bovinus</i> than vitamins. Temperature was the factor exerting the strongest effect on the growth of <i>P. tinctorius</i>.

Genet dynamics and ecological functions of the pioneer ectomycorrhizal fungi Laccaria amethystina and Laccaria laccata in a volcanic desert on Mount Fuji

Mycorrhiza ◽  
2014 ◽  
Vol 24 (7) ◽  
pp. 551-563 ◽  
Author(s):  
Md. Abdul Wadud ◽  
Kazuhide Nara ◽  
Chunlan Lian ◽  
Takahide A. Ishida ◽  
Taizo Hogetsu
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Laccaria Laccata ◽  
Ecological Functions ◽  
Mount Fuji ◽  
Volcanic Desert

scholarly journals The Influence of Microfungi on the Mycelial Growth of Ectomycorrhizal Fungus Tricholoma matsutake

2019 ◽  
Vol 7 (6) ◽  
pp. 169 ◽  
Author(s):  
Seung-Yoon Oh ◽  
Myung Soo Park ◽  
Young Woon Lim
Keyword(s):  
Molecular Markers ◽  
Ectomycorrhizal Fungi ◽  
Mycelial Growth ◽  
Slow Growth ◽  
Ectomycorrhizal Fungus ◽  
Tricholoma Matsutake ◽  
Forest Nursery ◽  
Promoting Effect ◽  
Trichoderma Species ◽  
Fungal Isolates

Pine mushroom (Tricholoma matsutake) is one of the most valued ectomycorrhizal fungi in Asia because of its unique pine-like aroma; however, due to exceptionally slow growth of its mycelia in artificial conditions, its cultivation has been largely deemed as not possible. Previous studies have shown that some bacteria and a few Trichoderma species associated with pine mushroom promoted the growth of T. matsutake isolate, but this effect is relatively unexplored. In this study, we investigated the diversity of microfungi in the fairy ring of T. matsutake and their effect on the growth of T. matsutake isolate. From 184 fungal isolates, 28 species were identified based on suitable molecular markers. Penicillium was most frequently observed (16 species), followed by Trichoderma (4 species). Five Zygomycota species showed a high promoting effect on the growth of T. matsutake while the effects of ascomycetes were mixed. The microfungi that promote the growth of T. matsutake can be useful for forest nursery and artificial cultivation of T. matsutake.

Phosphorus Uptake, Use Efficiency, and Response of Potato Cultivars to Phosphorus Levels

2015 ◽  
Vol 58 (2) ◽  
pp. 121-134 ◽  
Author(s):  
Rogério P. Soratto ◽  
Cristiane Pilon ◽  
Adalton M. Fernandes ◽  
Letícia A. Moreno
Keyword(s):  
Phosphorus Uptake ◽  
Potato Cultivars ◽  
Use Efficiency ◽  
Phosphorus Levels
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