Rapid reactions of spruce cells to elicitors released from the ectomycorrhizal fungus Hebeloma crustuliniforme, and inactivation of these elicitors by extracellular spruce cell enzymes

Planta ◽  
1996 ◽  
Vol 198 (1) ◽  
Author(s):  
Peter Salzer ◽  
Gerhard Hebe ◽  
Andreas Reith ◽  
Barbara Zitterell-Haid ◽  
Harald Stransky ◽  
...  
Keyword(s):  
Ectomycorrhizal Fungus ◽  
Hebeloma Crustuliniforme

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 Effect of heavy metals on enzymes production by Hebeloma crustuliniforme

2014 ◽  
Vol 31 (2) ◽  
pp. 181-189 ◽  
Author(s):  
Hanna Dahm ◽  
Edmund Strzelczyk
Keyword(s):  
Heavy Metals ◽  
Enzymatic Activity ◽  
Proteolytic Activity ◽  
Pectate Lyase ◽  
Ectomycorrhizal Fungus ◽  
Cellulose Powder ◽  
Pectolytic Enzymes ◽  
Hebeloma Crustuliniforme

Studies were carried out in order to dętermine the effect of some heavy metals (Cu, Cd, Pb, Zn) on the production of enzymes (cellulases, peetinases. proteases) by ectomycorrhizal fungus <i>Hebeloma crusliliniforme</i> (Buli.: Fr.) Quél. All the heavy metals inhibited the general enzymatic activity regardless of the source of carbon used. The metals reduced the egzocellulolytic activity more in media with cellulose powder than with CMC (carboxymethylocellulosc). Among pectolytic enzymes heavy metals most strongly inhibited polygalacturonase (PG). The heavy metals did not harmful affect the activity of pectate lyase (PGL). Proteolytic activity of <i>Hebeloma crustuliniforme</i> was leasi affected by zinc (Zn). The degree of inhibition of enzymes by heavy metals can be presented in the following order Pb < Zn < Cd <Cu.

scholarly journals Role of Suillus placidus in Improving the Drought Tolerance of Masson Pine (Pinus massoniana Lamb.) Seedlings

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 332
Author(s):  
Min Li ◽  
Haoyun Wang ◽  
Xizhou Zhao ◽  
Zhongke Lu ◽  
Xueguang Sun ◽  
...  
Keyword(s):  
Drought Stress ◽  
Defense Mechanism ◽  
Southern China ◽  
Dry Weight ◽  
Pinus Massoniana ◽  
Photosynthetic Performance ◽  
Ectomycorrhizal Fungus ◽  
Severe Drought ◽  
Masson Pine ◽  
Pine Seedlings

Masson pine is an important afforestation species in southern China, where seasonal drought is common. The present study focused on the effects of Suillus placidus, an ectomycorrhizal fungus, inoculation on the growth and physiological and biochemical performance of masson pine seedlings under four different watering treatments (well-watered, mild drought, moderate drought, and severe drought) to evaluate the symbiotic relationship between S. placidus and masson pine seedlings. Ectomycorrhizal-inoculated (ECM) and non-inoculated (NM) seedlings were grown in pots and maintained for 60 days using the weighing method. Results showed that seedlings’ growth, dry weight, RWC, chlorophyll content, PSII efficiency, and photosynthesis decreased as drought stress intensified in both ECM and NM plants. This suggests that drought stress significantly limits the growth and photosynthetic performance of masson pine seedlings. Nevertheless, increased An/gs and proline contents in both NM and ECM prevented oxidative damage caused by drought stress. In addition, increased peroxidase (POD) activity is an essential defense mechanism of ECM seedling under drought stress. Compared with NM, ECM seedlings showed faster growth, higher RWC, and photosynthetic performance, and lower lipid peroxidation in cell membranes under drought stress, as indicated by higher POD activity and lower proline and malondialdehyde (MDA). Our experiment found that S. placidus inoculation can enhance the drought resistance of masson pine seedlings by increasing antioxidant enzyme activity, water use efficiency, and proline content, thereby enhancing growth under water-deficiency conditions. S. placidus can be used to cultivate high-quality seedlings and improve their survival in regions that experience seasonal droughts.

Understanding introduction history: Genetic structure and diversity of the edible ectomycorrhizal fungus, Suillus luteus, in Patagonia (Argentina)

Mycologia ◽  
2021 ◽  
pp. 1-10
Author(s):  
María Belén Pildain ◽  
Paula Marchelli ◽  
María Marta Azpilicueta ◽  
Cristian Starik ◽  
Carolina Barroetaveña
Keyword(s):  
Genetic Structure ◽  
Ectomycorrhizal Fungus ◽  
Suillus Luteus ◽  
Introduction History ◽  
Genetic Structure And Diversity
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