Trachyspora intrusa on Lady's Mantle

Plant diseases
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Lancashire Lad
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Trachyspora intrusa on Lady's Mantle

Post by Lancashire Lad » Sun May 24, 2015 3:36 pm

Found yesterday.

Aecidia (stage I), of Trachyspora intrusa, on live leaves of Lady's Mantle - Alchemilla sp.

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Trachyspora intrusa on Lady's Mantle - Alchemilla sp.(1).jpg
Image showing yellowing of leaves caused by the infection.

Trachyspora intrusa on Lady's Mantle - Alchemilla sp.(2).jpg
The bright orange aecidia on the undersides of leaves.

Trachyspora intrusa Spores x400(1) with scale.jpg
Aecidiospores x400


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Mike
Common sense is not so common.

JennyS
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Re: Trachyspora intrusa on Lady's Mantle

Post by JennyS » Sun May 24, 2015 3:51 pm

Cheers Mike - must go check the Alchemilla in the garden ....
Jenny

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Re: Trachyspora intrusa on Lady's Mantle

Post by diggleken » Sun May 24, 2015 5:05 pm

me too - that is one helluva shot of the undersides Mike, beautiful construction.
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Ken

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Re: Trachyspora intrusa on Lady's Mantle

Post by rustbucket » Thu Jun 04, 2015 6:45 pm

very impressive photos. How come all the pretty rusts are found in other people's part of the world!

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Chris Yeates
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Re: Trachyspora intrusa on Lady's Mantle

Post by Chris Yeates » Thu Jun 04, 2015 7:14 pm

The telial stage is less spectacular macroscopically, but the spores are rather splendid . . .
Traint0a.jpg
Chris
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Re: Trachyspora intrusa on Lady's Mantle

Post by Lancashire Lad » Tue Jun 30, 2015 7:27 pm

The telial stage has now begun to appear on the plants where the aecidial stage (in the original post) was photographed: -

Click on images to view at full size.
Trachyspora intrusa Teleutosori on Lady's Mantle - Alchemilla sp..jpg
Trachyspora intrusa - Teleutosori on Alchemilla sp.
Trachyspora intrusa Teleutospores x400 Measured 270615.jpg
Trachyspora intrusa - Teleutospores x400
Believe it or not, the above (rather dire) image, shows the same type of spores that can bee seen in Chris's excellent composite image in the previous post. :oops: - And yes, they do look so much better by eye, than my Minicam's limited megapixels are able to resolve.


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Mike.
Common sense is not so common.

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Re: Trachyspora intrusa on Lady's Mantle

Post by adampembs » Wed Jul 01, 2015 11:11 am

I think Chris used a DIC microscope. for those. :ugeek:
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Re: Trachyspora intrusa on Lady's Mantle

Post by Lancashire Lad » Wed Jul 01, 2015 1:53 pm

adampembs wrote:I think Chris used a DIC microscope. for those. :ugeek:
Yep,

The lottery machine once again declined to dispense the balls matching with the six numbers printed on my ticket, so unfortunately, my order for a DIC scope, (and an Aston Martin), continues to be on hold. :D :D

Regards,
Mike.
Common sense is not so common.

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