Anatomical studies on ectomycorrhizas

Mohan, V.; Natarajan, K.; Ingleby, K.

doi:10.1007/bf00210692

Cited by 17 publications

(9 citation statements)

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“…Additionally, we examined the relationship between Psat and nutrients [48] and Scagel [49]). The curve indicated by the broken line shows the border to estimate increase or decrease of content.…”

Section: Discussionmentioning

confidence: 99%

“…Cluster roots were soaked in distilled water and observed at 10-40× magnification using a stereomicroscope (STZ-40TBIT, Shimadzu, Kyoto, Japan). ECM short roots of A. hygrometricus and S. citrinum were confirmed by the color, form, and size of the ECM fungi, the presence of rhizomorphs and the absence of root hairs [38,40,49]. The numbers of colonized and uncolonized short roots were counted, and we calculated the percentage of ECM fungal colonization from the proportion of colonized short roots to the total number of short roots [50].…”

Section: Measurement Of the Rate Of Colonization Of Ecm Fungimentioning

confidence: 99%

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Growth Characteristics of Ectomycorrhizal Seedlings of Quercus glauca, Quercus salicina, Quercus myrsinaefolia, and Castanopsis cuspidata Planted in Calcareous Soil

Kayama

Yamanaka

2016

Forests

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Abstract:To verify the acclimation capacity of evergreen Fagaceae species on calcareous soil, we compared ecophysiological traits between Quercus glauca Thunb., Q. salicina Blume, Q. myrsinaefolia Blume, and Castanopsis cuspidata (Thunb.) Schottky as typical woody species from southwestern Japan. We also examined the inoculation effects of the ectomycorrhizal (ECM) fungi Astraeus hygrometricus and Scleroderma citrinum, and planted seedlings in calcareous soil collected from a limestone quarry. We measured growth, ectomycorrhizal colonization, photosynthetic rate, and concentrations of nutrients in plant organs for A. hygrometricus-inoculated, S. citrinum-inoculated, and non-ECM seedlings. Six months after planting on calcareous soil, seedlings of the three Quercus species inoculated with A. hygrometricus were larger than non-ECM seedlings, especially Q. salicina, which showed the greatest increase in dry mass. The dry mass of C. cuspidata seedlings was inferior to that of the three Quercus species. In the nutrient-uptake analysis, phosphorus, manganese, and iron uptakes were suppressed in calcareous soil for each Fagaceae species. However, seedlings of Fagaceae species that showed better growth had increased concentrations of phosphorus in roots. We concluded that seedlings of Q. salicina and Q. glauca inoculated with A. hygrometricus were best suited to calcareous soil and were considered as useful species for the reforestation in limestone quarries.

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Section: Discussionmentioning

confidence: 99%

Section: Measurement Of the Rate Of Colonization Of Ecm Fungimentioning

confidence: 99%

Growth Characteristics of Ectomycorrhizal Seedlings of Quercus glauca, Quercus salicina, Quercus myrsinaefolia, and Castanopsis cuspidata Planted in Calcareous Soil

Kayama

Yamanaka

2016

Forests

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“…Rhizomorph nodia, which were observed for S. areolatum , were also reported for S. bovista on Populus alba (Jakucs and Agerer 1999) and S. citrinum on Larix decidua (Richter and Bruhn 1990), but not for S. citrinum on other host species (Brunner et al 1992; Mohan et al 1993; Waller et al 1993); in some cases, information on rhizomorph structure is not detailed enough. It seems that a quite common characteristic of Scleroderma ectomycorrhizae are also inflated or swollen hyphae, which are sometimes referred as cystidia.…”

Section: Discussionmentioning

confidence: 94%

“…It seems that a quite common characteristic of Scleroderma ectomycorrhizae are also inflated or swollen hyphae, which are sometimes referred as cystidia. Inflated or swollen hyphae at distal ends of hyphae emanating from the mantle surface were reported for S. sinnamariense (Ingleby 1999), S. dictyosporum (Ingleby 1999) and S. citrinum (Mohan et al 1993), while for S. citrinum (Mohan et al 1993; Waller et al 1993) and S. verrucosum (Chu-Chou and Grace 1983), they were described for the surface of rhizomorphs. In our samples of S. areolatum , they occurred on the surface of thicker rhizomorphs, where they were locally distributed, and at some tips of emanating hyphae.…”

Section: Discussionmentioning

confidence: 99%

“…Various Scleroderma species have been described as forming ectomycorrhizae, indicating its broad host range and distribution (Table 1), but detailed descriptions are available only for S. citrinum (Mohan et al 1993, Waller et al 1993), Scleroderma bovista (Jakucs and Agerer 1999) and Scleroderma sinnamariense (Ingleby 1999). Scleroderma areolatum has been described previously only briefly from Italy as forming ectomycorrhizae with Castanea sativa (Meotto et al 1994).…”

Section: Introductionmentioning

confidence: 99%

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Scleroderma areolatum ectomycorrhiza on Fagus sylvatica L.

et al. 2016

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Despite its broad host range and distribution and its potential applications in commercial plantation forests, comprehensive descriptions of Scleroderma ectomycorrhizae are available only for Scleroderma citrinum, Scleroderma bovista and Scleroderma sinnamariense. This study provides a morphological and anatomical description of tree nursery derived ectomycorrhizae of Scleroderma areolatum on Fagus sylvatica, grown for several years in a climatized room. Ectomycorrhizae of S. areolatum were silvery white with abundant rhizomorphs; all mantle layers were plectenchymatous, rhizomorphs of type E, with prominent emanating hyphae with thick cell wall. The distal ends of emanating hyphae of rhizomorphs were inflated and often merged with other emanating hyphae. All parts of the mycorrhiza were clampless. In hyphae of the outer mantle layer, rhizomorphs and emanating hyphae, oily droplets were observed that did not stain in sulfo-vanillin and disappeared in lactic acid after a few hours. Although the phylogenetic analysis positioned the newly described ectomycorrhiza together with Scleroderma verrucosum and Scleroderma cepa in a single clade with a taxon name SH005470.07FU, the ectomycorrhizae of these three species can be morphologically well separated based on rhizomorph type.

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Ectomycorrhizas of Rhizopogon himalayensis on Cedrus deodara

Kumar,

Tapwal,

Kumar

et al. 2023

J Basic Microbiol

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The ectomycorrhizal (EcM) roots of Cedrus deodara associated with a unique hypogeous EcM fungus—Rhizopogon himalayensis is meticulously characterized and comprehensively described based on well‐established standard morphological and anatomical features. The mycobiont—R. himalayensis was found organically associated with the roots of C. deodara. The EcM morphotypes are distinguished by differences in the shape and color of the roots, type of ramification, surface texture, type of mantle, as well as different chemical reactions. All the examined morphotypes were having similar mycorrhizal system and anatomically (Mantle and Hartig net) no disparities were seen, that is, nonsignificant (p > 0.05) variations were observed. The majority of mycorrhizal systems were irregularly pinnate, dichotomous type with 0–1 order of ramification and occasional coralloid type. Mantle surface was densely cottony to loosely wooly. The outer and inner mantles were H & Q type. Hartig net was a complex net‐like structure with uniseriate to mutiseriate type of hyphal cell arrangement. Rhizomorph were smooth and round, consistently growing along roots. Moreover, extraradical hyphae were hyaline, septate, and without clamp connections. Sclerotia and cystidia were absent. Our findings will contribute to the biology of ectomycorrhizae associated with primitive and economically valuable conifers, thriving in the face of shifting environmental conditions in the northwestern Himalayas.

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Anatomical studies on ectomycorrhizas

Cited by 17 publications

References 1 publication

Growth Characteristics of Ectomycorrhizal Seedlings of Quercus glauca, Quercus salicina, Quercus myrsinaefolia, and Castanopsis cuspidata Planted in Calcareous Soil

Growth Characteristics of Ectomycorrhizal Seedlings of Quercus glauca, Quercus salicina, Quercus myrsinaefolia, and Castanopsis cuspidata Planted in Calcareous Soil

Scleroderma areolatum ectomycorrhiza on Fagus sylvatica L.

Ectomycorrhizas of Rhizopogon himalayensis on Cedrus deodara

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