scholarly journals Fungal communities in soil beneath Scots pine and their stumps. Effect of fungi on Heterobasidion annosum and Armillaria ostoyae growth

2014 ◽  
Vol 30 (2) ◽  
pp. 193-205 ◽  
Author(s):  
Hanna Kwaśna
Keyword(s):  
Scots Pine ◽  
Antagonistic Effect ◽  
Fungal Communities ◽  
Heterobasidion Annosum ◽  
Armillaria Ostoyae

The soil beneath 30-year-old Scots pines, was inhabited by fungi communities which were at least iwicc as big as communities from ihe 49-year-old stand. The fungi communities in soil beneath the stumps were much smaller compared to those beneath the live trees and more abundant in the 30- than in the 49--year-old stand. The fungal communities in soil beneath the 30-year-old pines have bigger antagonistic effect on <i>Heterobasidion annosum</i> and <i>Armillaria ostoyae</i> than those beneath the 49-year-old stand. The decrease in density of fungi and in the frequency of species antagonistic to <i>H. annosum</i> and </i>A. ostoyae</i> resulted in the decrease of the antagonistic effect on both pathogens in soil beneath pine stumps.

scholarly journals Antagonistic effect of fungi from Scots pine stump roots against Heterobasidion annosum and Armillaria ostoyae

2014 ◽  
Vol 32 (2) ◽  
pp. 369-381 ◽  
Author(s):  
Hanna Kwaśny
Keyword(s):  
Scots Pine ◽  
Root Rot ◽  
Suppressive Effect ◽  
Antagonistic Effect ◽  
Heterobasidion Annosum ◽  
Fungal Colonization ◽  
Natural Control ◽  
Armillaria Ostoyae ◽  
Forest Conditions

The study presents quantitative and qualitative aspects of fungal colonization of the 2-year-old stump roots of the 30- and 49-year-old Scots pines, and biotic relations between fungi inhabiting the stump roots and major agent s of butt and root rot in Poland, i.e.: <i>H. annosum</i> and <i>A. ostoyae</i>. Compared to the live roots, the increase in density of fungi communities as well as the frequency of the fungi antagonistic towards <i>H. annosum</i> and <i>A. ostoyae</i>, particularly of <i>Trichoderma</i> species. in pine stump roots resulted in the increase of the suppressive effect of these communities towards both pathogens, studied in vitro. This finding may suggest a stronger resistance of pine stump roots to <i>H. annosum</i> and <i>A. ostoyae</i> what under forest conditions may be the example of natural control of both pathogens.

Compartmentalized and contrasted response of ectomycorrhizal and soil fungal communities of Scots pine forests along elevation gradients in France and Spain

2015 ◽  
Vol 17 (8) ◽  
pp. 3009-3024 ◽  
Author(s):  
Ana Rincón ◽  
Blanca Santamaría-Pérez ◽  
Sonia G. Rabasa ◽  
Aurore Coince ◽  
Benoit Marçais ◽  
...  
Keyword(s):  
Scots Pine ◽  
Pine Forests ◽  
Fungal Communities ◽  
Elevation Gradients ◽  
Scots Pine Forests

scholarly journals Evaluation of potential genetic and chemical markers for Scots pine tolerance against Heterobasidion annosum infection

Planta ◽  
2019 ◽  
Vol 250 (6) ◽  
pp. 1881-1895 ◽  
Author(s):  
Mukrimin Mukrimin ◽  
Andriy Kovalchuk ◽  
Rajendra P. Ghimire ◽  
Minna Kivimäenpää ◽  
Hui Sun ◽  
...  
Keyword(s):  
Scots Pine ◽  
Heterobasidion Annosum ◽  
Chemical Markers

scholarly journals Fungal communities in barren forest soil after amendment with different wood substrates and their possible effects on trees’, pathogens, insects and nematodes

2015 ◽  
Vol 55 (3) ◽  
pp. 301-311 ◽  
Author(s):  
Monika Małecka ◽  
Hanna Kwaśna ◽  
Wojciech Szewczyk
Keyword(s):  
Forest Soil ◽  
Scots Pine ◽  
Sandy Loam ◽  
Woody Debris ◽  
Fungal Communities ◽  
Dilution Method ◽  
Pine Sawdust ◽  
Post Harvest ◽  
Abundance And Diversity

AbstractScots pine sawdust, composted bark or coarse, post-harvest woody debris from conifers had been spread over the surface of barren forest soil before planting with Scots pine. The effects of the Scots pine sawdust, composted bark or coarse, post-harvest woody debris from conifers on the abundance and diversity of culturable fungi were investigated. The amendments were aimed at increasing the soil suppressiveness toArmillariaandHeterobasidion.The classical soil-dilution method was chosen for qualitative and quantitative analyses of fungal communities in soils because of its proven reliability and consistency. The soil was inhabited by saprotrophic fungi from Ascomycota and Zygomycota, including species known to be potential antagonists ofArmillariaorH. annosum(i.e.Clonostachys + Trichodermaspp.,Penicillium commune, P. daleae,P. janczewskii) or stimulants ofArmillaria(i.e.Pseudogymnoascus roseus,Trichocladium opacum). Eleven years after treatment, the abundance and diversity of fungi, the abundance ofP. commune, and locally the abundance ofP. janczewskiiincreased, whileClonostachys + Trichodermaspp., and locally,P. daleaeandT. opacumdecreased. Amending the barren soil with organic matter does not guarantee effective, long-term suppressiveness of the sandy loam soil toArmillariaandHeterobasidion.Increased abundance of entomopathogenic and nematophagous species, 11 years after treatment, does suggest the long-term possibility of insect or nematode control in soil.

scholarly journals Resistance of Scots pine half-sib families to Heterobasidion annosum in progeny field trials

Silva Fennica ◽  
2020 ◽  
Vol 54 (4) ◽  
Author(s):  
Adas Marčiulynas ◽  
Vaida Sirgedaitė-Šėžienė ◽  
Povilas Žemaitis ◽  
Āris Jansons ◽  
Virgilijus Baliuckas
Keyword(s):  
Scots Pine ◽  
Plant Resistance ◽  
Root Rot ◽  
Field Trial ◽  
Tree Mortality ◽  
Resistance Index ◽  
Field Trials ◽  
Heterobasidion Annosum ◽  
Total Phenolic ◽  
Sib Families

Five Scots pine ( L.) progeny field trials, each established in different Lithuanian regions of provenance in 1983, were studied. Each progeny field trial consists of 140 half-sib families from seven populations (20 families from each population). The evaluation was carried out in 2012 and 2018 to assess the families resistance to (Fr.) Bref. An index of resistance in the infected plots was calculated. To verify the accuracy of the method, total phenolic compounds (TPC) was chosen as key parameter to compare with the plant resistance index. During the six years between the two assessments, the percentage of living Scots pine trees in the progeny field trials decreased up to 20 percentage points (range: 4 p.p. to 20 p.p.). In 2018 the area of damaged plots (in percentage from total field trial area) varied from 17 to 27%. Tree mortality in the trial correlates with site soil fertility – more fertile soils were distinguished by higher tree percentage loss and . Using analysis from combined data of all progeny trials, the family variance component reached 13.3 ± 2.2% and family heritability was 0.81. Family heritability estimates for root rot resistance show possibilities of high breeding effectiveness. The correlations between the trials in family resistance estimates were negligible (ranging from 0 to 0.28). The significant high correlation coefficient was determined between the resistance index and TPC concentration ( = 0.77,  = 0.0003). This allows us to assume that plant resistance is directly linked on TPC synthesis. The results indicate that the chosen methods of chemical resistance for identification of root rot-resistant genotypes are applicable for the selection of Scots pine half-sib families in the field trials with higher resistance to pathogens.Pinus sylvestrisHeterobasidion annosumH. annosumvice versarp

scholarly journals The Resistance of Scots Pine (Pinus sylvestris L.) Half-sib Families to Heterobasidion annosum

Forests ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 287 ◽  
Author(s):  
Adas Marčiulynas ◽  
Vaida Sirgedaitė-Šėžienė ◽  
Povilas Žemaitis ◽  
Virgilijus Baliuckas
Keyword(s):  
Phenolic Compounds ◽  
Mortality Rate ◽  
Pinus Sylvestris ◽  
Incidence Rate ◽  
Scots Pine ◽  
Heterobasidion Annosum ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Seedling Mortality ◽  
Sib Families

This study observed the genotypic variation among Scots pine (Pinus sylvestris L.) half-sib families’ susceptibility to Heterobasidion annosum. Scots pine susceptibility was tested in 12 half-sib families by inoculating them with four different H. annosum strains. At two, six, and ten months after the inoculations, the susceptibility indicators (incidence rate, pathogen spread, and mortality rate) were compared and the total phenolic compounds (TPC) in the inoculated and control groups determined using the Folin–Ciocalteu method. Among half-sib families, significant differences were found for seedling mortality (range: 1.3%–21.2%); however, the differences in incidence rate (range: 54%–77%) and pathogen spread (range: 24–53 mm) were not significant. The incidence rate among half-sib families correlated positively and significantly (r = 0.72, p < 0.05) with the mortality rate, while the pathogen spread correlated negatively with mortality, although the correlation was not significant (r = −0.29, p > 0.05). The TPC comparison with susceptibility indicators showed that the half-sib families with lower susceptibility were characterized by the ability to increase TPC after inoculation compared to the control group. This tendency was most apparent in stems and roots six and two months after inoculation, respectively. Correlation analyses revealed that higher TPC in stems six months after inoculation determined a lower incidence rate (r = −0.32, p < 0.05), while higher Change in concentration of total phenolic compounds (TPCΔ) indicated a lower pathogen spread (r = −0.60, p < 0.05). The lowest incidence of the pathogen was determined in half-sib families with the highest TPCΔ in the roots two months after inoculation. The lower susceptibility of Scots pine half-sib families is based on a combination of enhanced constitutive and inducible phenolic defense mechanisms. The data may facilitate the selection of Scots pine half-sib families with low susceptibility for breeding programs and forest management strategies.

Effects of a great cormorant colony on wood-inhabiting fungal communities in a coastal Scots pine forest

2019 ◽  
Vol 41 ◽  
pp. 82-91 ◽  
Author(s):  
Reda Iršėnaitė ◽  
Tatjana Arslanova ◽  
Jonas Kasparavičius ◽  
Ernestas Kutorga ◽  
Svetlana Markovskaja ◽  
...  
Keyword(s):  
Scots Pine ◽  
Pine Forest ◽  
Fungal Communities ◽  
Great Cormorant ◽  
Scots Pine Forest
Sign in / Sign up

Export Citation Format

Share Document