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Trachyspora intrusa on Lady’s Mantle

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  • May 24, 2015 at 3:36 pm #29388
    Lancashire Lad
    Keymaster

      Found yesterday.

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

      Click on images to view at full size

      Trachyspora intrusa on Lady's Mantle - Alchemilla sp.(1).jpg

      [attachment=2]Trachyspora intrusa on Lady’s Mantle – Alchemilla sp.(1).jpg[/attachment] Image showing yellowing of leaves caused by the infection.

      Trachyspora intrusa on Lady's Mantle - Alchemilla sp.(2).jpg

      [attachment=1]Trachyspora intrusa on Lady’s Mantle – Alchemilla sp.(2).jpg[/attachment] The bright orange aecidia on the undersides of leaves.

      Trachyspora intrusa Spores x400(1) with scale.jpg

      [attachment=0]Trachyspora intrusa Spores x400(1) with scale.jpg[/attachment] Aecidiospores x400

      Regards,

      Mike

      May 24, 2015 at 3:51 pm #34549
      JennyS

        Cheers Mike – must go check the Alchemilla in the garden ….

        May 24, 2015 at 5:05 pm #34550
        diggleken

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

          Cheers

          Ken

          June 4, 2015 at 6:45 pm #34551
          rustbucket

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

            June 4, 2015 at 7:14 pm #34552
            Chris Yeates

              The telial stage is less spectacular macroscopically, but the spores are rather splendid . . .

              Traint0a.jpg

              [attachment=0]Traint0a.jpg[/attachment]
              Chris

              June 30, 2015 at 7:27 pm #34553
              Lancashire Lad
              Keymaster

                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

                [attachment=1]Trachyspora intrusa Teleutosori on Lady’s Mantle – Alchemilla sp..jpg[/attachment]

                Trachyspora intrusa Teleutospores x400 Measured 270615.jpg

                [attachment=0]Trachyspora intrusa Teleutospores x400 Measured 270615.jpg[/attachment]
                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. 😳 – And yes, they do look so much better by eye, than my Minicam’s limited megapixels are able to resolve.

                Regards,

                Mike.

                July 1, 2015 at 11:11 am #34554
                adampembs
                Keymaster

                  I think Chris used a DIC microscope. for those. :ugeek:

                  July 1, 2015 at 1:53 pm #34555
                  Lancashire Lad
                  Keymaster

                    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.

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