Mycorrhizal and dark septate fungal associations in gingers and spiral gingers

Botany ◽  
2010 ◽  
Vol 88 (5) ◽  
pp. 500-511 ◽  
Author(s):  
Eswaranpillai Uma ◽  
Thangavelu Muthukumar ◽  
Kullaiyan Sathiyadash ◽  
Vellaisamy Muniappan
Keyword(s):  
Plant Species ◽  
Root Length ◽  
Arbuscular Mycorrhizae ◽  
Rhizosphere Soil ◽  
Arbuscular Mycorrhizal ◽  
Intermediate Type ◽  
Dark Septate Endophyte ◽  
The Status ◽  
Fungal Associations ◽  
First Time

Associations of arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungi with 38 ginger species (Zingiberaceae) and two spiral gingers (Costaceae) were investigated. All species were mycorrhizal, and the status of 35 gingers and one spiral ginger has been investigated for the first time. The extent of AM colonization and the root length colonized by AM structures varied significantly among species. AM structures were also observed in non-root portions such as scale leaves. Arbuscular mycorrhizae were of either Arum-type or intermediate- type; AM-type is reported for the first time in 37 species. Spores of 16 morphotypes belonging to 4 genera ( Glomus , Acaulospora , Scutellospora , Racocetra ) were identified from the rhizosphere soil. DSE colonization was found in 22 gingers and 2 spiral gingers. Twenty-two plant species are reported as hosts of DSE fungi for the first time. The extent of total AM and DSE colonization was not correlated.

scholarly journals Arbuscular mycorrhizal and dark septate endophyte associations of medicinal plants

2011 ◽  
Vol 80 (4) ◽  
pp. 285-292 ◽  
Author(s):  
Szymon Zubek ◽  
Janusz Błaszkowski ◽  
Piotr Mleczko
Keyword(s):  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Glomus Mosseae ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Botanical Garden ◽  
Dark Septate Endophyte ◽  
Glomus Versiforme ◽  
Convallaria Majalis ◽  
First Time

Arbuscular mycorrhizal fungi (AMF) and dark septate endophyte (DSE) associations were studied in 36 medicinal plant species from 33 genera and 17 families, collected from the Botanical Garden of the Jagiellonian University in Kraków. Arbuscular mycorrhiza (AM) was found in 34 species (94%); 26 were of the <em>Arum</em>-type, 4 – <em>Paris </em>and 4 taxa revealed intermediate morpho­logy. The abundance of AMF hyphae in roots varied with particular species, ranging from 2.5% (<em>Helianthus tuberosus</em>) to 77.9% (<em>Convallaria majalis</em>). The mycelium of DSE was observed in 13 plant species (36%), however, the percentage of root colonization by these fungi was low. Spores of 7 AMF species (Glomeromycota) were isolated from trap cultures established from rhizosphere soils of the investigated plants: <em>Archaeospora trappei </em>(Archaeosporaceae), <em>Glomus aureum</em>, <em>Glomus caledonium</em>, <em>Glomus claroideum</em>, <em>Glomus constrictum</em>, <em>Glomus mosseae</em>, <em>Glomus versiforme </em>(Glomeraceae). Our results are the first detailed report of root endophyte associations of the plant species under study. Moreover, the mycorrhizal status of 14 plant species is reported for the first time.

Mycorrhizal associations in Polylepis woodlands of Central Argentina

2007 ◽  
Vol 85 (5) ◽  
pp. 526-531 ◽  
Author(s):  
Eugenia Menoyo ◽  
Alejandra G. Becerra ◽  
Daniel Renison
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Plant Species ◽  
Mycorrhizal Fungi ◽  
National Park ◽  
Arbuscular Mycorrhizal ◽  
Dark Septate Endophyte ◽  
Central Argentina ◽  
Mycorrhizal Associations ◽  
Colonization Patterns ◽  
First Time

Polylepis woodlands are one of the most threatened mountain ecosystems of South America, and their restoration is a high priority. To assess the mycorrhizal status in Polylepis woodlands of “Quebrada del Condorito” National Park (Córdoba Mountains, Central Argentina), we examined the roots of 22 plant species, belonging to 14 families and determined morphological types of arbuscular mycorrhiza (Arum and Paris type) and colonization level. The 22 species were colonized by arbuscular mycorrhizal fungi and dark septate endophytes. Different arbuscular mycorrhizal structures and colonization patterns were observed, although Paris-type colonization was predominant. Fourteen plant species are reported for the first time as hosts of arbuscular mycorrhizal fungi. We conclude that arbuscular mycorrhizal fungi and dark septate endophyte hosts are widespread in the Polylepis woodlands of Central Argentina and should receive special attention in future revegetation programs.

scholarly journals Arbuscular mycorrhizal fungi of the Brda river valley in the Tuchola Forests

2014 ◽  
Vol 35 (1) ◽  
pp. 3-23 ◽  
Author(s):  
Mariusz Tadych ◽  
Janusz Błaszkowski
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Rhizosphere Soil ◽  
Arbuscular Mycorrhizal ◽  
River Valley ◽  
The World ◽  
First Time

The occurrence of arbuscular mycorrhizal fungi (AMF) associated with 19 plant species from 12 families growing in the Brda river valley in the Tuchola Forests is presented. The most frequently investigated plans were those from the families <i>Cupressaceae</i> and <i>Plantaginaceae</i>. Examination of trap cultures established from rhizosphere soil-root mixtures of the plans sampled revealed 20 described species of AMF, two undescribed <i>Glomus</i> spp., and three species of the genus <i>Glomus</i> that were difficult to recognize. The dominating AMF were members of the genus <i>Glomus</i>. Among the AMF found, <i>G. claroideum</i> was present, a species recorded for the first time in Poland. The distribution in Poland and in the world of the AMF encountered is shown.

scholarly journals Endorhizal Fungal Association and Colonization Patterns in Solanaceae

2017 ◽  
Vol 62 (2) ◽  
pp. 287-299 ◽  
Author(s):  
Thangavelu Muthukumar ◽  
Ramalingam Sathya
Keyword(s):  
Plant Species ◽  
Root Length ◽  
Solanum Melongena ◽  
Significant Negative Correlation ◽  
Fungal Colonization ◽  
Dark Septate Endophyte ◽  
Datura Metel ◽  
Site Variation ◽  
Am Morphology ◽  
Fungal Associations

AbstractThe Solanaceae family includes plants of high economic and medicinal value. Information on endorhizal associations in Solanaceae is limited. We investigated arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal associations in 20 solanaceous plant species (7 genera) taken from one or more sites, measuring the percentage of root length colonized in plants having different AM and DSE fungal structures. Root samples of all the plant species examined had AM fungal structures, and DSE fungal colonization was found in 80% of the plant species. Total AM and DSE fungal colonization and root length of plants with different fungal structures varied significantly between species. Significant between-site variation was found for root length in plants with fungal structures in Lycopersicon esculentum Mill., Capsicum annuum L., Datura metel L., Solanum melongena L., S. nigrum L., S. trilobatum L. and S. torvum SW. AM morphology was predominantly intermediate-type (60%), followed by Paris-type (30%). Solanum melongena and S. nigrum at different sites had Paris-type or intermediate AM morphology. DSE fungal colonization also exhibited significant between-site variation in Capsicum frutescens, C. annum, Datura metel, Solanum melongena, S. trilobatum and S. nigrum. We found a significant negative correlation between AM and DSE fungal colonization.

scholarly journals Arbuscular Mycorrhizal and Dark Septate Endophyte Fungal Associations in South Indian Aquatic and Wetland Macrophytes

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Kumar Seerangan ◽  
Muthukumar Thangavelu
Keyword(s):  
Plant Species ◽  
Fungal Spores ◽  
Arbuscular Mycorrhizal ◽  
Fungal Colonization ◽  
Dark Septate Endophyte ◽  
South Indian ◽  
Fungal Symbiosis ◽  
Am Morphology ◽  
First Time ◽  
Wetland Habitats

Investigations on the prevalence of arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal symbioses are limited for plants growing in tropical aquatic and wetland habitats compared to those growing on terrestrial moist or dry habitats. Therefore, we assessed the incidence of AM and DSE symbiosis in 8 hydrophytes and 50 wetland plants from four sites in south India. Of the 58 plant species examined, we found AM and DSE fungal symbiosis in 21 and five species, respectively. We reported for the first time AM and DSE fungal symbiosis in seven and five species, respectively. Intermediate-type AM morphology was common, and AM morphology is reported for the first time in 16 plant species. Both AM and DSE fungal colonization varied significantly across plant species and sites. Intact and identifiable AM fungal spores occurred in root zones of nine plant species, but AM fungal species richness was low. Though no clear relationship between AM and DSE fungal colonization was recognized, a significant negative correlation between AM colonization and spore numbers was established. Our study suggests that the occurrence of AM and DSE fungal symbiosis in plants growing in hydrophytic and wetland habitats is not as common as in terrestrial habitats.

scholarly journals Studies on the arbuscular mycorrhizal fungal association in some medicinal plant species of paithal hills, western ghats kannur district, kerala

2020 ◽  
Vol 7 (2) ◽  
pp. 30-38
Author(s):  
Santhoshkumar S ◽  
Nagarajan N ◽  
Sree Priya S
Keyword(s):  
Plant Species ◽  
Root Colonization ◽  
Rhizosphere Soil ◽  
Fungal Spores ◽  
Arbuscular Mycorrhizal ◽  
Soil Samples ◽  
Fungal Colonization ◽  
The Family ◽  
Spore Population ◽  
Arbuscular Mycorrhizal Fungal

In the present study to analyzed that the arbuscular mycorrhizal fungal spores in root colonization and spore population in rhizosphere soils samples in various medicinal at Paithal hills,Western Ghats of Kannur district, Kerala, India. Root and rhizosphere soil samples were collected during the month of August, 2018-March, 2019 from the surface to 30 cm depth as well as pH were also recorded. Totally 30 plant species belonging to 19 families were collected and identified. The present result showed arbuscular mycorrhizal spore population in the rhizosphere soil and root colonization of all the plant species. A total of 19 AM fungal spores were recovered from the rhizosphere soil samples in this study region. The Glomus was dominant had seen in rhizosphere soil samples in all the medicinal plant species. The maximum spore population was found in the rhizosphere soil samples of Mimosa pudica (590/100g of soil) which belongs to the family Mimosaceae and the lowest spore population was observed in the Terminalia bellirica 135/100g of soil) belongs to Combretaceae family. The highest  78 % AM fungal colonization was found in roots of Euphorbia hirta belongs to the family Euphorbiaceae. While the lowest 11 % AM fungal colonization was found in the root of Sida acuta belongs to the family Malvaceae.

scholarly journals Arbuscular mycorrhiza and dark septate endophyte fungal associations of Oryza sativa L. under field condition: colonization features and their occurrence

2019 ◽  
Vol 6 (1) ◽  
pp. 63-70
Author(s):  
Kripamoy Chakraborty ◽  
Subam Banik ◽  
Atithi Debnath ◽  
Aparajita Roy Das ◽  
Ajay Krishna Saha ◽  
...  
Keyword(s):  
Oryza Sativa L ◽  
Arbuscular Mycorrhizal ◽  
Am Fungi ◽  
Fungal Species ◽  
Chemical Fertilizers ◽  
Dark Septate Endophyte ◽  
Root Cortex ◽  
The Third ◽  
Fungal Associations ◽  
Local Farmers

The present study was aimed to study monthly colonization of arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal associations in rice. The presence of mycorrhizal structures in the roots confirms the colonization by AM fungi. The pattern of hyphae and arbuscules denotes Arum type of AM fungal morphology. The presence of dark coloured septate hyphae running frequently on the epidermal layer and in root cortex and the occurrence of microsclerotia marks the colonization by DSE fungi. The co-occurrence of both AM and DSE fungi ensure dual colonization by two distinct fungal groups. There was significant increase in arbuscules, vesicles and hyphal percentages from first to third month in both the samples collected from two sites. In the third month, AM colonization significantly higher in both the sites. DSE colonization percentages do not differ significantly in first to third month. A total of nine AM fungal species were recovered from two sites. This study is an effort to make aware the local farmers about the usefulness of these native AM mycobiota which can be a preferable choice over chemical fertilizers leading to ecofriendly organic farming.

scholarly journals Exploring plant root-fungal interactions in a neotropical freshwater wetland

2019 ◽  
Vol 97 (4) ◽  
pp. 661-674
Author(s):  
Jazmín Santillán-Manjarrez ◽  
A. Penelope Solis-Hernández ◽  
Patricia Castilla-Hernández ◽  
Ignacio E. Maldonado-Mendoza ◽  
Gilberto Vela-Correa ◽  
...  
Keyword(s):  
Water Column ◽  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Plant Roots ◽  
Freshwater Wetland ◽  
Fungal Colonization ◽  
Dark Septate Endophyte ◽  
Dry Conditions

Background: Wetlands in Neotropics harbor high fungal diversity, including arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE). This study describes the interaction of plant roots with AMF and DSE in a freshwater wetland belonging to a hotspot of biodiversity.Hypothesis: Differential root colonization between arbuscular mycorrhizal and dark septate endophyte fungi is influenced by plant species and abiotic conditions in a freshwater wetland.  Studied species: Plant species colonized by arbuscular mycorrhizal and dark septate endophyte fungi.Methods: Properties of soils and the water column, floristic composition, root colonization by AMF and DSE, and molecular identification of AMF inside roots were studied.Results: Soils were Gleysol and flooded during the rainy season. Most of identified plant species were herbaceous, with Cyperus articulatus and Mimosa pigra as the dominant species. Seven of 8 analyzed plant species exhibited differential co-colonization between AMF and DSE. Repeated sampling for one year under flooding/dry conditions demonstrated that C. articulatus and M. pigra were mainly associated with DSE and AMF, respectively. A positive correlation between dissolved O2 in the water column and fungal colonization was observed in C. articulatus. Glomerales and Archaeosporales were molecularly identified inside roots containing arbuscules of M. pigra.Conclusions: Findings highlight differential coexistence between AMF and DSE in plant roots; fungal colonization was influenced by flooding/dry conditions in a neotropical wetland; the community of AMF inside arbusculated roots of M. pigra includes at least four clades.

scholarly journals Allelopathy of Knotweeds as Invasive Plants

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 3
Author(s):  
Hisashi Kato-Noguchi
Keyword(s):  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Invasive Plant ◽  
Native Plants ◽  
Rhizosphere Soil ◽  
Arbuscular Mycorrhizal ◽  
Plant Residues ◽  
Japanese Knotweed ◽  
Plant Parts ◽  
Germination And Growth

Perennial herbaceous Fallopia is native to East Asia, and was introduced to Europe and North America in the 19th century as an ornamental plant. Fallopia has been spreading quickly and has naturalized in many countries. It is listed in the world’s 100 worst alien species. Fallopia often forms dense monospecies stands through the interruption of the regeneration process of indigenous plant species. Allelopathy of Japanese knotweed (Fallopia japonica), giant knotweed (Fallopia sachalinensis), and Bohemian knotweed (Fallopia x bohemica) has been reported to play an essential role in its invasion. The exudate from their roots and/or rhizomes, and their plant residues inhibited the germination and growth of some other plant species. These knotweeds, which are non-mycorrhizal plants, also suppressed the abundance and species richness of arbuscular mycorrhizal fungi (AMF) in the rhizosphere soil. Such suppression was critical for most territorial plants to form the mutualism with AMF, which enhances the nutrient and water uptake, and the tolerance against pathogens and stress conditions. Several allelochemicals such as flavanols, stilbenes, and quinones were identified in the extracts, residues, and rhizosphere soil of the knotweeds. The accumulated evidence suggests that some of those allelochemicals in knotweeds may be released into the rhizosphere soil through the decomposition process of their plant parts, and the exudation from their rhizomes and roots. Those allelochemicals may inhibit the germination and growth of native plants, and suppress the mycorrhizal colonization of native plants, which provides the knotweeds with a competitive advantage, and interrupts the regeneration processes of native plants. Therefore, allelopathy of knotweeds may contribute to establishing their new habitats in the introduced ranges as invasive plant species. It is the first review article focusing on the allelopathy of knotweeds.

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