Russula alnijorullensis (Sing.) Sing. + Alnus

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Literature

• references
  Becerra AG, Beenken L, Pritsch K, Daniele G, Schloter M, Agerer R (2005). Morphological description and molecular characterization of Lactarius aff. omphaliiformis, Russula alnijorullensis and Cortinarius tucumanensis ectomycorrhizas on Alnus acuminata. Mycologia 97:1047-1057

Morphology

Morphology of the mycorrhizal system
• length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
27 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• ramification presence-type
  monopodial-pinnate [irregularly]
• 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)
• abundance
  abundant, dense
• rhizomorphs as stout, short, conical structures presence-abundance
  absent
• rhizomorphs as short mycorrhiza-like outgrowths with blunt tips presence
  absent
• rhizomorphs presence
  absent
• exploration type
  contact
Morphology of the unramified ends
• shape
  sinuous
or    tortuous
• shape {of distal end}
  not inflated, cylindric
• length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
10.4 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• diameter
0.1 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.5 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• colour
  yellowish [light yellow to pinkish]
• older parts colour
  ochre, yellowish brown
• mantle cortical cells visibility
  not visible
• mantle {distinct} surface visibility
  present
• mantle transparency
  not transparent
• mantle laticifers visibility
  absent
• mantle secreted latex {after scratching mantle} presence
  absent
• mantle dots presence-colour
  absent
• mantle carbonizing presence
  absent
• mantle surface {in general} habit
  smooth
or    covered with soil particles
• emanating hyphae presence
  present
Morphology of sclerotia
• presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
• emanating elements presence-type
  emanating hyphae
• crystals presence
  absent
• blue granules presence
  absent
Anatomy of laticifers
• presence
  absent
• anatomy entire mycorrhiza laticiferous solitary (gloeoplerous) cells presence
  present
Anatomical features of the mantle
• completeness
  complete
• matrix presence
  absent
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
• organisation
  pseudoparenchymatous
• organisation {if pseudoparenchymatous} cell shape
  angular
• mantle type
  angular cells, bearing mounds of roundish cells (type K)
• mound cells diameter
7 µm    Lower value of unspecified range (could be µ-s.d., but not known)
17 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• mound cells length
10 µm    Lower value of unspecified range (could be µ-s.d., but not known)
21 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• clavate end cell cover presence
  absent
• hyphae arrangement
  not specific
• septa clamps presence
  absent
• cell pigment location-colour
  membranaceously yellowish
• cell diameter
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
19 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell length
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
32 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell density
6     Lower value of unspecified range (could be µ-s.d., but not known)
7     Upper value of unspecified range (could be µ+s.d., but not known)
• cell wall with globular thickenings
  absent
• cell wall surface habit
  smooth
• drops of exuded pigment presence
  absent
• roundish plasmatically yellow cells presence
  absent
• pigment granula on surface presence
  absent
Anatomy of the middle mantle layer
• presence
  absent
Anatomy of the inner mantle layer
• organisation
  plectenchymatous
• hyphae arrangement
  without pattern
• hyphae vessel-like presence
  absent
• septa clamps presence
  absent
• cell pigment location-colour
  membranaceously yellowish
• cell diameter
2.5 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)
Anatomy of the mantle in longitudinal section
• mantle thickness {apart from tip}
40 µm    Lower value of unspecified range (could be µ-s.d., but not known)
60 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• mantle thickness {at ectomycorrhizal tip}
30 µm    Lower value of unspecified range (could be µ-s.d., but not known)
35 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• mantle different layers presence
  discernable
• outer mantle layer organisation
  plectenchymatous
• outer mantle layer hyphae tangentially length
7.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
27 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• outer mantle layer hyphae radially diameter
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
10 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• middle mantle layer presence
  absent
• inner mantle layer organisation
  plectenchymatous
• inner mantle layer hyphae tangentially length
6 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)
• inner mantle layer hyphae radially diameter
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
7 µm    Upper value of unspecified range (could be µ+s.d., but not known)

Anatomy of the tannin cells in longitudinal section
• presence
  absent

Anatomy of the cortical cells in longitudinal section
• anatomy mantle longitudinal section cortical (epidermal) cells shape
  rectangular
or    round
• anatomy mantle longitudinal section cortical (epidermal) cells tangentially length
25 µm    Lower value of unspecified range (could be µ-s.d., but not known)
47 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy mantle longitudinal section cortical (epidermal) cells radially diameter
11 µm    Lower value of unspecified range (could be µ-s.d., but not known)
22 µm    Upper value of unspecified range (could be µ+s.d., but not known)

Anatomy of the Hartig net in longitudinal section
• presence
  present
• kind
  paraepidermal
• structure {in plan view}
  infrequently lobed
• lobes width
3.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
6 µm    Upper value of unspecified range (could be µ+s.d., but not known)
Anatomy of the mantle in cross-section



Anatomy of the emanating elements in general
Anatomy of cystidia


Anatomy of emanating hyphae
• shape
  tortuous
or    irregularly inflated or even beaded
• 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 shape
  even
or    with ellbow-like protrusions
• anatomy emanating elements emanating hyphae cell diameter
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
4 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy emanating elements emanating hyphae cell length
12 µm    Lower value of unspecified range (could be µ-s.d., but not known)
32 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy emanating elements emanating hyphae cell wall surface habit
  smooth
or    with soil particles


Anatomy of the warts occouring on emanating hyphae
• presence
  absent
Anatomy of rhizomorphs

Anatomy of hyphae in rhizomorphs
Anatomy of chlamydospores
• presence
  absent
Anatomy of haustoria
• {of ectomycorrhiza former} presence
  absent
• {of foreign origin} presence
  absent

Chemical reactions

• reaction with cotton-blue-lactic-acid presence
  present [emanating hyphae slightly blue]
• reaction with ethanol 70% presence
  present [whole mycorrhiza bleaching]
• reaction with KOH 10% presence
  present [whole mycorrhiza bleaching]
• reaction with lactic acid presence
  present [whole mycorrhiza bleaching]
• reaction with Melzer's reagent presence
  absent
• reaction with NH4OH
  present [whole mycorrhiza bleaching]
• reaction with sulpho-vanillin presence
  present [walls red, contents of mantle cells with droplets becoming black]

Ecology

• geographic occurrence continent
  South America

Tree

• plant family
  Betulaceae
• plant genus
  Alnus

Fungus

• family
  Russulaceae
• fruitbodies growth habit
  epigeous
or    pileate-lamellate

DNA-Analysis

• PCR- ITS1, -ITS4 restriction enzyme HinfI bands number
2     Mean (= average)
• PCR- ITS1, -ITS4 restriction enzyme HinfI bp of 1. band from below number
380     Mean (= average)
• PCR- ITS1, -ITS4 restriction enzyme HinfI bp of 2. band from below number
320     Mean (= average)

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