scholarly journals Studies on phytopathogenic and saprotrophic fungi in rush associations of Lake Glinno (NW Poland)

2013 ◽  
Vol 41 (1) ◽  
pp. 125-138 ◽  
Author(s):  
Kinga Mazurkiewicz-Zapałowicz ◽  
Mariola Wróbel ◽  
Artur Silicki ◽  
Maria Wolska
Keyword(s):  
Plant Species ◽  
Phragmites Australis ◽  
Host Species ◽  
Health State ◽  
Saprotrophic Fungi ◽  
Disease Symptoms ◽  
Plant Associations ◽  
Carex Acutiformis ◽  
Nw Poland

During the vegetation seasons in years 2004-2005 the health state of rush plant species from <em>Phragmition</em> and <em>Magnocaricion</em> alliances around the Lake Glinno was investigated. From 13 plant species with disease symptoms 94 species of fungi and FLO were isolated. The highest mycological biodiversity was stated in <em>Phragmitetum australis</em> (24 species) and <em>Thelypteridi-Phragmitetum</em> (27 species) plant associations. The host species in which the biggest number of fungi and FLO species was observed were: <em>Phragmites australis</em> (37 species) and <em>Carex acutiformis</em> (25 species). The highest mycological similarity based on the Jaccard-Sörensen coefficient occurred between <em>Caricetum acutiformis</em> and <em>Glycerietum maximae</em> plant associations (50%) whereas the lowest value of the coefficient represented <em>Glycerietum maximae</em> and <em>Phalaridetum arundinaceae</em> associations (7%).

scholarly journals Hidden Host Plant Associations of Soilborne Fungal Pathogens: An Ecological Perspective

2013 ◽  
Vol 103 (6) ◽  
pp. 538-544 ◽  
Author(s):  
Glenna M. Malcolm ◽  
Gretchen A. Kuldau ◽  
Beth K. Gugino ◽  
María del Mar Jiménez-Gasco
Keyword(s):  
Host Plant ◽  
Population Biology ◽  
Fungal Pathogens ◽  
Current Knowledge ◽  
Vascular Plant ◽  
Disease Symptoms ◽  
Nonhost Plant ◽  
Plant Associations ◽  
Definition Of ◽  
Forest Plants

Much of the current knowledge on population biology and ecology of soilborne fungal pathogens has been derived from research based on populations recovered from plants displaying disease symptoms or soil associated with symptomatic plants. Many soilborne fungal pathogens are known to cause disease on a large number of crop plants, including a variety of important agronomical, horticultural, ornamental, and forest plants species. For instance, the fungus Verticillium dahliae causes disease on >400 host plants. From a phytopathological perspective, plants on which disease symptoms have not been yet observed are considered to be nonhosts for V. dahliae. This term may be misleading because it does not provide information regarding the nature of the plant–fungus association; that is, a nonhost plant may harbor the fungus as an endophyte. Yet, there are numerous instances in the literature where V. dahliae has been isolated from asymptomatic plants; thus, these plants should be considered hosts. In this article, we synthesize scattered research that indicates that V. dahliae, aside from being a successful and significant vascular plant pathogen, may have a cryptic biology on numerous asymptomatic plants as an endophyte. Thus, we suggest here that these endophytic associations among V. dahliae and asymptomatic plants are not unusual relationships in nature. We propose to embrace the broader ecology of many fungi by differentiating between “symptomatic hosts” as those plants in which the infection and colonization by a fungus results in disease, and “asymptomatic hosts” as those plants that harbor the fungus endophytically and are different than true nonhosts that should be used for plant species that do not interact with the given fungus. In fact, if we broaden our definition of “host plant” to include asymptomatic plants that harbor the fungus as an endophyte, it is likely that the host ranges for some soilborne fungal pathogens are much larger than previously envisioned. By ignoring the potential for soilborne fungal pathogens to display endophytic relationships, we leave gaps in our knowledge about the population biology and ecology, persistence, and spread of these fungi in agroecosystems.

scholarly journals GRZYBY MAKROSKOPIJNE REZERWATU PRZYRODY „TORFOWISKO TOPORZYK” (NW POLSKA)

1970 ◽  
Vol 65 ◽  
pp. 95-109
Author(s):  
Małgorzata Stasińska ◽  
Zofia Sotek
Keyword(s):  
Nature Reserve ◽  
Fungal Species ◽  
Red List ◽  
Mycological Research ◽  
Plant Associations ◽  
Nw Poland

The paper presents results of mycological research carried out in the “Torfowisko Toporzyk” nature reserve (NW Poland), in the years 2004–2009. As a result of the studies, 216 fungal species were identified, 17 Ascomycota and 199 Basidiomycota. Twenty of the recorded species are included on the Polish red list of macrofungi, e.g. Cortinarius violaceus, Lactarius lacunarum, Mycena megaspora and Suillus flavidus. Among the plant associations, Vaccinio uliginosi-Pinetum (87 species) and Vaccinio uliginosi-Betuletum pubescentis (77), turned out to be the richest in fungi, whereas the fewest taxa were found in Rhynchosporetum albae (8).

scholarly journals Flora and vegetation of urbanized areas on the example of the Melekeska and Shukralinka valleys within Naberezhnye Chelny

2021 ◽  
Vol 10 (1) ◽  
pp. 97-101
Author(s):  
Dmitry Sergeevich Lyubarsky ◽  
Rimma Petrovna Tokinova
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Plant Associations ◽  
Tap Root ◽  
Adventive Flora ◽  
Middle Volga ◽  
Urbanized Areas ◽  
Common Plant ◽  
Flooded Areas ◽  
Ecological Types

The paper deals with the examination results of flora and vegetation of the Melekeska and Shukralinka valleys within Naberezhnye Chelny. The most common plant associations are identified, they are Bromopsetum variograminosum, B. varioherbosum, Festicetum variograminosum, Calamagrostetum epigeiosum; Phragmitetum australis associations are identified in the flooded areas. Anthropogenically altered areas with a high mosaicity of listed above associations communities and ephemeral weeds are widely represented. The volume and structure are shown in the areas flora. This area is subjected to constant anthropogenic load. Taxonomic and geographic analyses of flora as well as a range of vital forms and ecological types are submitted. 120 plant species from 94 genera and 40 families have been identified. The position of the leading families is like that in regional flora, Asteraceae, Poaceae, and Fabaceae are leading. Perennial polycarpic grasses especially long-rhizome (21,7%) and tap-root (15,0%) dominate among biomorphs (69,2%). Species with wide ranges are of paramount importance, they are Euro-West Asian (30,9%), Eurasian (27,5%), Holarctic (11,7%) and the percentage of alien species is 8,5%. Ruderal (36,7%), meadow (17,5%) and humid meadow (11,7%) species are leading in the ecological-coenotic spectrum. The adventive flora is represented by 16 species and it is briefly analyzed. Valley floras of some other Middle Volga rivers have been compared.

scholarly journals Harmful plant species in meadow-pastures associations on Stara Planina mountain

2006 ◽  
Vol 22 (3-4) ◽  
pp. 129-135
Author(s):  
Zorica Nesic ◽  
Zorica Tomic ◽  
M. Zujovic ◽  
Dragana Ruzic-Muslic
Keyword(s):  
Plant Species ◽  
Useful Plants ◽  
Mountain Regions ◽  
Important Resource ◽  
Livestock Feeds ◽  
Plant Associations ◽  
Food Value

Meadows and pastures are important resource of livestock feeds in mountain regions and all plant species on them don?t have same value as livestock feeds. From aspect of food value for livestock all species fundamentally can distribute as useful and harmful plants. In paper are represent two plant associations of Stara Planina Mountain Festucetum vallesiacae and Agrostietum vulgarae. In this associations, besides useful plants, are defined, harmful plant species, there present in associations and all of it in aim of ascertainment measures for their removal or reduction from sward. Group of harmful plants is segmented on three subcategory: bed and worthless plants, harmful and poorly poisons and very poisons plants. Association Festucetum vallesiacae count 75 plant species and of that, category bed and worthless plants belong 26 plants or 34.7 g kg-1, category harmful and poorly poisons belong 8 or 10.6 g kg-1, while category very poisons plants default. Association Agrostietum vulgare count 47 plant species and of that category bed and worthless plants belong 17 or 36.17 g kg-1, category harmful and poorly poisons just one plant or 2.13 g kg-1 and category very poisons plants default too.

scholarly journals Root and Shoot Biomass Growth of Constructed Floating Wetlands Plants in Saline Environments

2019 ◽  
Vol 16 (2) ◽  
pp. 275 ◽  
Author(s):  
Oriana Sanicola ◽  
Terry Lucke ◽  
Michael Stewart ◽  
Katharina Tondera ◽  
Christopher Walker
Keyword(s):  
Nutrient Uptake ◽  
Plant Species ◽  
Phragmites Australis ◽  
Saline Water ◽  
Shoot Biomass ◽  
Percentage Increase ◽  
Biomass Growth ◽  
Saline Environments ◽  
Floating Wetlands ◽  
Root And Shoot Biomass

Constructed Floating Wetlands (CFWs) are increasingly being used globally in freshwater environments such as urban lakes and ponds to remove pollutants from urban stormwater runoff. However, to date there has been limited research into the use and performance of these systems in saline environments. This study compared the root and shoot biomass growth and nutrient uptake of five different plant species, Chrysopogon zizanioides, Baumea juncea, Isolepis nodosa, Phragmites australis and Sarcocornia quinqueflora, in three different saltwater treatments over a 12-week period. The aim of the study was to identify which of the plant species may be most suitable for use in CFWs in saline environments. Plant nutrient uptake testing revealed that Phragmites australis had the greatest percentage increase (1473–2477%) of Nitrogen mass in the shoots in all treatments. Sarcocornia quinqueflora also had impressive Nitrogen mass increase in saltwater showing an increase of 966% (0.208 ± 0.134 g). This suggests that the use of Phragmites australis and Sarcocornia quinqueflora plants in CFWs installed in saline water bodies, with regular harvesting of the shoot mass, may significantly reduce Nitrogen concentrations in the water. Isolepis nodosa had the greatest percentage increase (112% or 0.018 ± 0.020 g) of Phosphorous mass in the shoots in the saltwater treatment. Baumea juncea had the greatest percentage increase (315% or 0.026 ± 0.012 g) of Phosphorous mass in the roots in the saltwater treatment. This suggests that the use of Isolepis nodosa and Baumea juncea plants in CFWs installed in saline water bodies may significantly reduce Phosphorous concentrations in the water if there was a way to harvest both the shoots above and the roots below the CFWs. The study is continuing, and it is anticipated that more information will be available on CFW plants installed in saline environments in the near future.

Five decades of research on phytoplasma-induced witches' broom diseases.

2021 ◽  
Vol 16 (002) ◽  
Author(s):  
Chamran Hemmati
Keyword(s):  
Plant Species ◽  
Ornamental Plants ◽  
Fruit Trees ◽  
The Other ◽  
Economic Losses ◽  
Common Disease ◽  
Vegetable Crops ◽  
Management Options ◽  
Disease Symptoms ◽  
Broom Disease

Abstract Phytoplasmas, prokaryotic wall-less microorganisms, are important pathogens of several plant species in most parts of the world. Phytoplasmas have been reported associated with various symptoms on hundreds of plant species. Witches' broom disease (WBD) is one of the most common disease symptoms, which is caused by phytoplasma strains belonging to different phytoplasma groups. Symptoms of the disease differ from one host to the other as well as from one phytoplasma strain to the other. However, WBD symptoms are usually characterized by the production of a large number of small leaves, accompanied in some host plants by the production of several branches/shoots. Phytoplasma strains belonging to more than 13 groups and 39 subgroups have been reported associated with WBD in more than 116 plant species. Most of the phytoplasma strains causing WBD symptoms in plant species belong to the 16SrII and 16SrI groups, mainly 16SrII-D and 16SrI-B subgroups. The current review provides information on the different types of phytoplasma strains associated with WBD symptoms in ornamental plants, medicinal plants, forest trees, weeds, vegetable crops, field crops, and fruit trees. Emphasis is on WBD on acid limes, almonds, peanuts, jujube, and cassava that have resulted in significant economic losses in different countries. Description of the symptoms, phytoplasma groups, and management options is also provided for some of the diseases.

scholarly journals Fungal diversity regulates plant-soil feedbacks in temperate grassland

2018 ◽  
Vol 4 (11) ◽  
pp. eaau4578 ◽  
Author(s):  
Marina Semchenko ◽  
Jonathan W. Leff ◽  
Yudi M. Lozano ◽  
Sirgi Saar ◽  
John Davison ◽  
...  
Keyword(s):  
Soil Properties ◽  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Vegetation Dynamics ◽  
Fungal Pathogens ◽  
Soil Microbial Communities ◽  
Temperate Grassland ◽  
Saprotrophic Fungi ◽  
Plant Resource ◽  
Plant Soil

Feedbacks between plants and soil microbial communities play an important role in vegetation dynamics, but the underlying mechanisms remain unresolved. Here, we show that the diversity of putative pathogenic, mycorrhizal, and saprotrophic fungi is a primary regulator of plant-soil feedbacks across a broad range of temperate grassland plant species. We show that plant species with resource-acquisitive traits, such as high shoot nitrogen concentrations and thin roots, attract diverse communities of putative fungal pathogens and specialist saprotrophs, and a lower diversity of mycorrhizal fungi, resulting in strong plant growth suppression on soil occupied by the same species. Moreover, soil properties modulate feedbacks with fertile soils, promoting antagonistic relationships between soil fungi and plants. This study advances our capacity to predict plant-soil feedbacks and vegetation dynamics by revealing fundamental links between soil properties, plant resource acquisition strategies, and the diversity of fungal guilds in soil.

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