Suillus flavus (With.) Sing. + Larix

– Item listing –

– Enlarged view –

Literature

references
  How E (1942) The mycorrhizal relations of larch. III. Mycorrhiza formation in nature. Ann Bot NS 6: 103-129.
Kottke I (1986) Charakterisierung und Identifizierung von Mykorrhizen. In Einsele G (ed) Das landschaftsökologische Forschungsprojekt Naturpark Schönbuch. Wasser- und Stoffhaushalt, bio-, geo-, und forstwirtschaftliche Studien in Südwestdeutschland. VHC, Weinheim, pp 463-485.
Samson J, Fortin JA (1988) Structural characterization of Fuscoboletinus and Suillus ectomycorrhizae synthesized on Larix laricina. Mycologia 80(3): 382-392.
Treu R (1990) Charakterisierung und Idenifizierung von Ektomykorrhizen aus dem Nationalpark Berchtesgaden. Bibl Mycol 134: 1-196.
Treu R (199) Suillus flavus. In Agerer R (ed) Colour Atlas of Ectomycorrhizae, plate 45, Einhorn-Verlag, Schwäbisch Gmünd.

Morphology

Morphology of the mycorrhizal system
length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
9.2 mm    Upper value of unspecified range (could be µ+s.d., but not known)
ramification presence-type
  monopodial-pyramidal
ramification orders
0     Lower value of unspecified range (could be µ-s.d., but not known)
1     Upper value of unspecified range (could be µ+s.d., but not known)
2     Maximum value
abundance
  abundant, dense
main axis diameter
0.4 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.57 mm    Upper value of unspecified range (could be µ+s.d., but not known)
rhizomorphs as stout, short, conical structures presence-abundance
  absent
rhizomorphs as short mycorrhiza-like outgrowths with blunt tips presence
  absent
rhizomorphs presence
  present
rhizomorphs frequency
  abundant
exploration type
  long distance
Morphology of the unramified ends
shape
  bent
shape {of distal end}
  not inflated, cylindric
length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
1.4 mm    Upper value of unspecified range (could be µ+s.d., but not known)
diameter
0.38 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.6 mm    Upper value of unspecified range (could be µ+s.d., but not known)
colour
  orange
or    lilac, light reddish blue
or    white
very tip colour
  whitish
older parts colour
  brown
mantle cortical cells visibility
  not visible
mantle {distinct} surface visibility
  present
mantle transparency
  not transparent
mantle laticifers visibility
  absent
mantle dots presence-colour
  absent
mantle carbonizing presence
  absent
mantle surface {in general} habit
  silvery
or    not smooth
mantle surface {in detail} kind
  loosely woolly
emanating hyphae presence
  present
emanating hyphae abundance
  abundant
emanating hyphae distribution
  not specifically distributed
Morphology of rhizomorphs
diameter
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.125 mm    Upper value of unspecified range (could be µ+s.d., but not known)
cross-section shape
  round or roundish
colour
  concolourous to mantle
ramification kind-frequency
  infrequently, at restricted points
connection to mantle kind
  distinct
origin location
  proximal
margin habit
  densely enveloped by hyphae
dimorphism presence
  absent
Morphology of sclerotia
presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
emanating elements presence-type
  rhizomorphs
or    cystidia
emanating elements cystidia location
  on outer mantle layer
Anatomy of laticifers
presence
  absent
Anatomical features of the mantle
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
organisation
  plectenchymatous
mantle type
  occasional patches of roundish cells on the mantle (type F)
septa thickness {relative to cell walls}
  as thick as walls
septa clamps presence
  absent
cell shape
  cylindric, not constricted at septa
cell pigment location-colour
  vacuolarly lilac, light reddish blue
cell diameter
3 µm    Lower value of unspecified range (could be µ-s.d., but not known)
5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
11 µm    Maximum value
cell wall thickness
0.2 µm    Mean (= average)
cell wall surface habit
  with many crystals
drops of exuded pigment presence
  present
Anatomy of the middle mantle layer
organisation
  plectenchymatous
Anatomy of the inner mantle layer
organisation
  plectenchymatous
hyphae arrangement
  without pattern
or    with broad streaks of parallel hyphae
or    with some considerably inflated cells
septa clamps presence
  absent
cell diameter
3 µm    Lower value of unspecified range (could be µ-s.d., but not known)
5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
11 µm    Maximum value
Anatomy of the mantle in longitudinal section
mantle thickness {apart from tip}
15 µm    Lower value of unspecified range (could be µ-s.d., but not known)
40 µm    Upper value of unspecified range (could be µ+s.d., but not known)
60 µm    Maximum value
mantle different layers presence
  not discernable
outer mantle layer organisation
  plectenchymatous
or    pseudoparenchymatous
middle mantle layer organisation
  plectenchymatous
or    pseudoparenchymatous
inner mantle layer organisation
  plectenchymatous
or    pseudoparenchymatous
unlayered mantle hyphae radially diameter
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
9 µm    Maximum value

Anatomy of the tannin cells in longitudinal section
presence
  present

Anatomy of the cortical cells in longitudinal section
anatomy mantle longitudinal section cortical (epidermal) cells shape
  tangentially-oval to -elliptic or -cylindrical, and oriented in parallel to root axis
anatomy mantle longitudinal section cortical (epidermal) cells tangentially length
35 µm    Lower value of unspecified range (could be µ-s.d., but not known)
163 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy mantle longitudinal section cortical (epidermal) cells radially diameter
15 µm    Lower value of unspecified range (could be µ-s.d., but not known)
40 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy mantle longitudinal section cortical (epidermal) cells mean tangential length CCt (ECt)
84 µm    Mean (= average)
anatomy mantle longitudinal section cortical (epidermal) cells mean shape-ratio CCq (ECq)
4.5     Mean (= average)

Anatomy of the Hartig net in longitudinal section
presence
  present
kind
  protruding towards endodermis
or    in two rows, not reaching endodermis
structure {in plan view}
  of palmetti type
Anatomy of the mantle in cross-section
mantle different layers presence
  not discernible
outer mantle layer organisation
  plectenchymatous
or    pseudoparenchymatous
middle mantle layer organisation
  plectenchymatous
or    pseudoparenchymatous
inner mantle layer organisation
  plectenchymatous
or    pseudoparenchymatous
unlayered mantle hyphae radially diameter
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
9 µm    Upper value of unspecified range (could be µ+s.d., but not known)
10 µm    Maximum value

Anatomy of the tannin cells in cross-section
presence
  present
rows number
0     Lower value of unspecified range (could be µ-s.d., but not known)
4     Upper value of unspecified range (could be µ+s.d., but not known)

Anatomy of the cortical cells in cross-section
anatomy mantle cross-section cortical (epidermal) cells shape
  radially-oval to -elliptic
anatomy mantle cross-section cortical (epidermal) cells tangentially length
9 µm    Lower value of unspecified range (could be µ-s.d., but not known)
29 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy mantle cross-section cortical (epidermal) cells radially diameter
10 µm    Lower value of unspecified range (could be µ-s.d., but not known)
40 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy mantle cross-section cortical (epidermal) cells mean tangential length CCt
19.5 µm    Mean (= average)
anatomy mantle cross-section cortical (epidermal) cells mean shape-ratio CCq
0.8     Mean (= average)

Anatomy of the Hartig net in cross-section
presence
  present
kind
  one or half a row of cortical cells adjoining endodermis free of Hartig net
or    protruding towards endodermis
anatomy mantle cross-section hyphal cells around cortical (epidermal) cells shape
  cylindrical
anatomy mantle cross-section hyphal cells around cortical (epidermal) cells thickness
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy mantle cross-section hyphal rows around cortical (epidermal) cells number
  one
or    two
structure {in plan view}
  of palmetti type
Anatomy of the emanating elements in general
Anatomy of cystidia

Anatomy of cystidia (type 1)
type
  globular (type G)
septa presence
  absent
septa kind
  absent, with basal clamp only
diameter {proximal}
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
11 µm    Upper value of unspecified range (could be µ+s.d., but not known)
cell wall colour
  absent
cell wall colour {relative to mantle cells}
  similar
cell wall thickness
0.2 µm    Mean (= average)
cell wall thickness {relative to mantle cells}
  similar in thickness
cell wall evenness
  even in thickness
surface habit
  smooth
contents presence
  absent
contents type
  absent

Anatomy of emanating hyphae
shape
  not striking
cell pigment location-colour
  absent
drops of exuded pigment presence
  absent


Anatomy of the septa of emanating hyphae
clamps presence
  absent


Anatomy of the cells of emanating hyphae
anatomy emanating elements emanating hyphae cell diameter
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
3 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy emanating elements emanating hyphae cell wall surface habit
  with crystals
or    without lens-shaped appositions
or    without spindle-shaped appositions
anatomy emanating elements emanating hyphae cell wall thickness
0.2 µm    Mean (= average)
anatomy emanating elements emanating hyphae cell wall {apart from tip} evenness
  even in thickness

Anatomy of the crystals occouring in emanating hyphae
presence shape
  irregularly shaped, amorphous
or    octahedral
orientation
  irregularly

Anatomy of rhizomorphs
type
  highly differentiated; thick hyphae forming mostly a core, septa often partially or completely dissolved
(type F)
internal nodia presence
  absent
a "ball" of intertwined, ramified, thin hyphae presence
  absent

Anatomy of hyphae in rhizomorphs
ampullate, trumpet-like inflated presence
  absent
Anatomy of vessel-like or thickened hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of central non-vessel-like hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of peripheral hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of solitary thick-walled hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of chlamydospores
presence
  absent
Anatomy of haustoria
{of ectomycorrhiza former} presence
  absent
{of foreign origin} presence
  absent
Anatomy of nuclei
number {per cell}
2     Mean (= average)
shape
  round
diameter
1.5 µm    Mean (= average)
length
1.5 µm    Mean (= average)
distance {between each other}
1 µm    Mean (= average)

Autofluorescence

whole mycorrhizae UV 254 nm colour-presence
  absent
whole mycorrhizae UV 366 nm colour-presence
  absent
mantle in section UV-filter 340-380 nm presence
  present
mantle in section blue-filter, 450-490 nm presence
  present
mantle in section green-filter, 530-560 nm presence
  absent

Chemical reactions

reaction with acid fuchsin presence
  absent
reaction with anilin presence
  absent
reaction with cotton-blue-lactic-acid presence
  absent
reaction with ethanol 70% presence
  absent
reaction with KOH 10% presence
  present
reaction with lactic acid presence
  present
reaction with Melzer's reagent presence
  absent
reaction with phenole presence
  absent
reaction with phenole-aniline presence
  absent
reaction with sulpho-vanillin presence
  absent

Ecology

geographic occurrence continent
  Europe
or    North America
knowledge about association with foreign fruitbodies presence
  unknown

Tree

plant family
  Pinaceae
plant genus
  Larix
plant habitat kind
  forests, woods

Fungus

family
  Boletaceae
subfamily
  Boletaceae subf. Suilloideae
fruitbodies growth habit
  epigeous
or    pileate-porioid

Remarks

public notes
  Autofluorescence of mantle in section with UV-filter bluish, with blue-filter yellowish; mantle with KOH with darker red pigment, in lactic acid pigment discolouring, in NH4OH grey amorphous material of mantle staining pinkish red to brwonish red.

– Item listing –