Delineation of the three brown rot fungi of fruit crops (Monilinia spp.) on the basis of quantitative characteristics

1998 ◽  
Vol 76 (12) ◽  
pp. 2042-2050 ◽  
Author(s):  
G.C.M. van Leeuwen ◽  
H.A. van Kesteren
Keyword(s):  
Brown Rot ◽  
Fruit Crops ◽  
Brown Rot Fungi ◽  
Quantitative Characteristics

Delineation of the three brown rot fungi of fruit crops (Monilinia spp.) on the basis of quantitative characteristics

1998 ◽  
Vol 76 (12) ◽  
pp. 2042-2050 ◽  
Author(s):  
GCM van Leeuwen ◽  
H A van Kesteren
Keyword(s):  
Growth Rate ◽  
Germ Tube ◽  
Brown Rot ◽  
Fruit Crops ◽  
Monilinia Fructigena ◽  
Light Regimes ◽  
Brown Rot Fungi ◽  
Quantitative Characteristics ◽  
Germ Tubes ◽  
Tube Distance

The three Monilinia spp., known as the brown rot fungi of fruit crops, are usually distinguished from each other on the basis of (qualitative) colony characteristics. We linked these qualitative features to unambiguously defined, quantitative colony and germ tube characteristics. A wide collection of isolates of Monilinia fructicola (Winter) Honey, Monilinia laxa (Aderhold & Ruhland) Honey, and Monilinia fructigena (Aderhold & Ruhland) Honey was used to determine growth rate and sporulation intensity on potato dextrose agar (PDA) at 22°C under two light regimes (darkness, 12 h light : 12 h dark). The following germ tube characteristics were determined on water agar after incubation for 18 h at 22°C in darkness: length of the (leading) germ tube, distance to the first branch, and the number of germ tubes per conidium. Increase in colony diameter from day 3 to day 5 and sporulation intensity measured after 14 days was the highest in M. fructicola, whilst M. laxa and M. fructigena showed considerable overlap in these features. The length of the germ tube after 18 h incubation was shortest in M. laxa, ranging from 161 to 466 µm. In M. fructicola and M. fructigena these ranges were 465-851 and 307-806 µm, respectively. The occurrence of more than one germ tube per conidium was most prominent in M. fructigena. Discriminant analysis on the basis of different combinations of the quantitative characteristics measured, showed that the combination of growth rate on PDA and length of the germ tube was sufficient to delineate the three brown rot fungi. One of 11 M. fructicola isolates was misclassified, the same held for M. fructigena (one misclassification of nine isolates). No misclassifications occurred in M. laxa.Key words: brown rot fungi, growth characteristics, Monilinia spp., taxonomy.

scholarly journals Disease warning models for brown rot fungi of fruit crops

2013 ◽  
Vol 19 (1-2) ◽  
Author(s):  
I. J. Holb
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Brown Rot ◽  
Growing Season ◽  
Fruit Crops ◽  
Monilinia Fructigena ◽  
Brown Rot Fungi ◽  
Decision Support Models ◽  
Warning Model

In this review, disease warning models for brown rot fungi, including Monilinia fructigena, M. laxa and M. fructicola, were summarized. Few studies have been made to relate epidemiology and disease warning in brown rot infection caused by M. fructicola and M. laxa in order to predict infections or develop decision support models for fungicide applications during the growing season. More recently a disease warning model and a decision support system were also performed for M. fructigena for organic apple orchards. This review gives an overview on some details of the above disease warning models and decision support system.

scholarly journals The brown rot fungi of fruit crops (Monilinia spp.): III. Important features of disease management (Review paper)

2004 ◽  
Vol 10 (4) ◽  
Author(s):  
I. J. Holb
Keyword(s):  
Disease Management ◽  
Chemical Control ◽  
Management Practices ◽  
Brown Rot ◽  
Control Measures ◽  
Fruit Crops ◽  
Monilinia Fructigena ◽  
Brown Rot Fungi ◽  
Monilia Polystroma ◽  
Rot Disease

In the third part of this review, important features of disease management are summarised for brown rot fungi of fruit crops (Monilinia fructigena, Monilinia laxa, Monilinia fructicola and Monilia polystroma). Several methods of brown rot disease management practices were collected and interpreted in five main chapters. In these chapters, details are given about the legislative control measures, the cultural, physical, biological and chemical control methods. Chemical control is divided into two parts: pre-harvest and post-harvest chemical control. In addition, host resistance and fungicide resistance statuses are also included in this part of the review. Finally, future aspects of brown rot disease control are discussed.

scholarly journals The brown rot fungi of fruit crops (Monilinia spp.): I. Important features of their biology (Review paper)

2003 ◽  
Vol 9 (3-4) ◽  
Author(s):  
I. J. Holb
Keyword(s):  
Review Paper ◽  
Brown Rot ◽  
Fruit Crops ◽  
Brown Rot Fungi

The brown rot fungi of fruit crops (Monilinia spp.): Important features of their biology (Review paper)

scholarly journals A real-time (TaqMan) PCR assay to differentiate Monilinia fructicola from other brown rot fungi of fruit crops

2009 ◽  
Vol 59 (3) ◽  
pp. 548-555 ◽  
Author(s):  
I. R. Van Brouwershaven ◽  
M. L. Bruil ◽  
G. C. M. Van Leeuwen ◽  
L. F. F. Kox
Keyword(s):  
Real Time ◽  
Brown Rot ◽  
Monilinia Fructicola ◽  
Fruit Crops ◽  
Pcr Assay ◽  
Brown Rot Fungi ◽  
Taqman Pcr

scholarly journals Lignocellulosic Waste Pretreatment Solely via Biocatalysis as a Partial Simultaneous Lignino-Holocellulolysis Process

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 668
Author(s):  
Justine Oma Angadam ◽  
Seteno Karabo Obed Ntwampe ◽  
Boredi Silas Chidi ◽  
Jun Wei Lim ◽  
Vincent Ifeanyi Okudoh
Keyword(s):  
Literature Review ◽  
Digestive Enzyme ◽  
Interdisciplinary Approach ◽  
Brown Rot ◽  
Lignocellulosic Waste ◽  
Brown Rot Fungi ◽  
Hydrolysis Products ◽  
Plant Exudates ◽  
Rapid Industrialization ◽  
Environmentally Friendly Approach

Human endeavors generate a significant quantity of bio-waste, even lignocellulosic waste, due to rapid industrialization and urbanization, and can cause pollution to aquatic ecosystems, and contribute to detrimental animal and human health because of the toxicity of consequent hydrolysis products. This paper contributes to a new understanding of the lignocellulosic waste bio-pretreatment process from a literature review, which can provide better biorefinery operational outcomes. The simultaneous partial biological lignin, cellulose and hemicellulose lysis, i.e., simultaneous semi-lignino-holocellulolysis, is aimed at suggesting that when ligninolysis ensues, holocellulolysis is simultaneously performed for milled lignocellulosic waste instead of having a sequential process of initial ligninolysis and subsequent holocellulolysis as is currently the norm. It is presumed that such a process can be solely performed by digestive enzyme cocktails from the monkey cups of species such as Nepenthes, white and brown rot fungi, and some plant exudates. From the literature review, it was evident that the pretreatment of milled lignocellulosic waste is largely incomplete, and ligninolysis including holocellulolysis ensues simultaneously when the waste is milled. It is further proposed that lignocellulosic waste pretreatment can be facilitated using an environmentally friendly approach solely using biological means. For such a process to be understood and applied on an industrial scale, an interdisciplinary approach using process engineering and microbiology techniques is required.

Unraveling the natural durability of wood: revealing the impact of decay-influencing characteristics other than fungicidal components

Holzforschung ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Liselotte De Ligne ◽  
Jan Van den Bulcke ◽  
Jan M. Baetens ◽  
Bernard De Baets ◽  
Gang Wang ◽  
...  
Keyword(s):  
Wood Species ◽  
Prunus Avium ◽  
Brown Rot ◽  
Natural Durability ◽  
Anatomical Features ◽  
Brown Rot Fungi ◽  
Material Characteristics ◽  
The One ◽  
Block Test ◽  
The Impact

AbstractThe effect of fungicidal components in wood has been known for ages, yet there is no method to assess the impact of such components on the durability of a wood species, as compared to other material characteristics that influence decay. In this paper, the importance of fungicidal effects on the natural durability of 10 wood species is assessed in relation to other decay-influencing factors with a new test, the so-called ‘paste test’. By comparing results from this test with the ‘mini-block test’, on both heartwood and leached sapwood, insight is gained into the significance of fungicidal components on the one hand and other material characteristics on the other hand. The durability of species such as Prunus avium was attributed mainly to fungicidal components. For species such as Pterocarpus soyauxii, durability seemed to be an effect of both fungicidal components and moisture-regulating components, while the latter seemed to be of main importance in regulating the decay of Aucoumea klaineana and Entandrophragma cylindricum. Wood-anatomical features, such as the parenchyma content (in case of brown rot fungi) and the vessel-fiber ratio, possibly affect degradation as well. This work shows that fungicidal components are not always of major importance for the durability of a wood species. The authors hereby emphasize the importance of moisture-regulating components and wood anatomy on the durability of wood.

scholarly journals Linking Genes to Traits in Fungi

2021 ◽  
Author(s):  
A. L. Romero-Olivares ◽  
E. W. Morrison ◽  
A. Pringle ◽  
S. D. Frey
Keyword(s):  
Organic Matter ◽  
Nitrogen Uptake ◽  
Brown Rot ◽  
Terrestrial Ecosystems ◽  
Organic Matter Decomposition ◽  
Gene Frequencies ◽  
Ecological Processes ◽  
Linked Gene ◽  
Carbon Cycles ◽  
Brown Rot Fungi

AbstractFungi are mediators of the nitrogen and carbon cycles in terrestrial ecosystems. Examining how nitrogen uptake and organic matter decomposition potential differs in fungi can provide insight into the underlying mechanisms driving fungal ecological processes and ecosystem functioning. In this study, we assessed the frequency of genes encoding for specific enzymes that facilitate nitrogen uptake and organic matter decomposition in 879 fungal genomes with fungal taxa grouped into trait-based categories. Our linked gene-trait data approach revealed that gene frequencies vary across and within trait-based groups and that trait-based categories differ in trait space. We present two examples of how this linked gene-trait approach can be used to address ecological questions. First, we show that this type of approach can help us better understand, and potentially predict, how fungi will respond to environmental stress. Specifically, we found that trait-based categories with high nitrogen uptake gene frequency increased in relative abundance when exposed to high soil nitrogen enrichment. Second, by comparing frequencies of nitrogen uptake and organic matter decomposition genes, we found that most ectomycorrhizal fungi in our dataset have similar gene frequencies to brown rot fungi. This demonstrates that gene-trait data approaches can shed light on potential evolutionary trajectories of life history traits in fungi. We present a framework for exploring nitrogen uptake and organic matter decomposition gene frequencies in fungal trait-based groups and provide two concise examples on how to use our framework to address ecological questions from a mechanistic perspective.

Sign in / Sign up

Export Citation Format

Share Document