WB01343_.gif (599 bytes)  Embryogenesis-2  WB01345_.gif (616 bytes)
311 Syllabus

Microscopic Images of Embryo Development in Capsella

Capsella is in the same family as Arabidopsis.

It is typically used to teach embryo development for Dicots.

You will see many similarities with Embryogenesis in Arabidopsis.

CapsEmbGlob-240Lab.jpg (55830 bytes)

CapsGlobCloseLab200.jpg (33345 bytes)

The Protoderm is defined at the late Globular Stage. The Hypophysis is also apparent. It is the only part of the Suspensor that contributes to the Mature Embryo
CapsEmbEarlyHeartStageHueLab.jpg (62312 bytes) CapsLateHeartStage-240Lab.jpg (89262 bytes)

The Cotyledons Appear as lateral outgrowths from the apex of the Globular Embryo.
This is called the Heart Stage. The Image on the left is "Early Heart Stage" while "Late Heart / Torpedo Stage" can be seen on the right above. The axis also elongates during this stage.

SAM
Shoot Apical Meristem

 

PC
Procambium

 

RAM
Root Apical Meristem

 CapsLateHeartStageCleanLab.jpg (43192 bytes) CapsMatureEmbLab250.jpg (102440 bytes)

The Three Primary Meristems and the two Apical Meristems are defined around "Late Heart Stage/Torpedo Stage".

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