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Observation: Bremia lactucae Regel (14432)
About Bremia lactucae Regel [MyCoPortal]
More Observations (1)
Draft for 2008/2009 EOL University Species Pages Initiative by Chris Ahlgren (private)
When: 2008-11-20
Collection location: Berkeley, California, USA [Click for map]
Who: Chris Ahlgren (All Grin)
No herbarium specimen
Proposed Names: Propose Another Name
Proposed Name User Community Vote
  All Grin   78% (1)   Eye3Eyes3
Recognized by sight: In a family of obligate vascular plant parasites, Peronosporaceae, this geneus is found growing on the underside of lettuce leaves. Discoloration visible from the top and eventual wilt. Underside of leaf has Thin white powder to the naked eye which is the signature that gives this family it’s common name of Downy mildews.
Used references: Alexopoulos, C.J. “Intorductory Mycology”. 2002 John Wiley & Sons
Based on microscopic features: Lemon shaped conidia, Dichotomously branched conidiophore,

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice Eyes3 = Current consensus
Comments: Add Comment

Created: 2008-11-21 12:15:58 EST (-0500)
By: Dan Molter (shroomydan)
Summary: Great shots!

Nice microscopy work!
313190

Created: 2008-11-20 17:15:28 EST (-0500)
Last modified: 2008-11-20 17:15:28 EST (-0500)
Viewed: 321 times, last viewed: 2013-05-24 19:40:51 EDT (-0400)
Map: Hide thumbnail map.
Images: (large thumbnails)

29657
10X magnification. Stained with lactophenol blue.

29658
40X magnification. Stained with lactophenol blue.

29659
4X magnification. Stained with lactophenol blue.

29660
10X magnification. Stained with lactophenol blue.