Kirk Amundson
@kirkamundson.bsky.social
USDA NIFA Postdoctoral Fellow @UMass
Plant Genome Evolution | Grasses
Plant Genome Evolution | Grasses
Our lab’s variegated peperomia makes green flecks on leaves, but only on the abaxial side. It’s the typical sandwich: L1 green-L2 yellow-L3 green, so guessing flecks are L1-derived cells dividing periclinally into L2. But how only on the abaxial side? Something to do with the super thick epidermis?
October 31, 2025 at 5:31 PM
Our lab’s variegated peperomia makes green flecks on leaves, but only on the abaxial side. It’s the typical sandwich: L1 green-L2 yellow-L3 green, so guessing flecks are L1-derived cells dividing periclinally into L2. But how only on the abaxial side? Something to do with the super thick epidermis?
Some of the really old papers on plant chimeras describe formation of shoots from roots in geranium. Here, a chimera with genetically white L3 sprouts a white shoot from an L3-derived shoot-borne root.
Still wouldn't call this a RAM sprouting a shoot though. Maybe theres a callus phase
Still wouldn't call this a RAM sprouting a shoot though. Maybe theres a callus phase
August 23, 2025 at 12:43 AM
Some of the really old papers on plant chimeras describe formation of shoots from roots in geranium. Here, a chimera with genetically white L3 sprouts a white shoot from an L3-derived shoot-borne root.
Still wouldn't call this a RAM sprouting a shoot though. Maybe theres a callus phase
Still wouldn't call this a RAM sprouting a shoot though. Maybe theres a callus phase