bud areole and lamina areole

[planteome-user]

We decided to add this term at the POC meeting on 11-8-11.

Proposed definition: An axillary bud that does not elongate, in which the leaves develop as spine leaves (PO:0025173). Comment: Found in Cactaceae. Appears as a cluster of spines. May be covered in trichomes. In species with tubercles, the areole is often found at the distal end of the tubercle. The areole originates in the axil of the leaf that becomes the tubercle but is displaced to the tip of a tubercle through adnation (fusion of two organs of different types). is_a axillary bud

ref.: Bell and Bryan, Plant Form

Reported by: rlwalls2008

Original Ticket: obo/plant-ontology-po-term-requests/397

[planteome-user]

The term areole exists in Arabidopsis, too. Meaning "a space delimited by veins or areas in the lamina surrounded by vascular strands" http://www.plantphysiol.org/content/121/4/1179.full, http://onlinelibrary.wiley.com/doi/10.1111/j.1365-313X.2011.04803.x/full

I was thinking to request the term in this meaning.

Original comment by: dosza

[planteome-user]

Dora, you are quite right. I have changed the name of this term to "bud areole" to eliminate confusion and suggest that we name the other term "lamina areole".

We will work on the definition of lamina areole next week and post more here.

Original comment by: rlwalls2008

[planteome-user]

• summary: areole --> bud areole and lamina areole

Original comment by: rlwalls2008

[planteome-user]

I suggest we add a general term for lamina areole, which will cover petals, etc., and a more specific term for leaf lamina areole.

Proposed definition for lamina areole (PO:0025391): A cardinal organ part that is the smallest part of a lamina that is completely surrounded by veins. Comment: Any order of vein can form the sides of an areole. Taken together, the areoles form a contiguous field of polygons over the area of a lamina. part_of lamina

Proposed definition for leaf lamina areole (PO:0025392): A lamina areole that is the smallest part of a leaf lamina that is completely surrounded by leaf veins. Comment: Any order of leaf vein can form the sides of an areole. Taken together, the areoles form a contiguous field of polygons over the area of a leaf lamina. Free ending veinlets (PO:0025390) may be found within a leaf lamina areole. part_of leaf lamina

Ref: ISBN:9780801475184

Original comment by: rlwalls2008

[planteome-user]

ID for bud areole: PO:0025353

Original comment by: rlwalls2008

[planteome-user]

At the POC meeting on 4-17-12, we accepted a new definition for for areole bud

areole bud (PO:0025353): An axillary vegetative bud (PO:0004712) that is not elongated, in which the vascular leaves (PO:0009025) develop as spine leaves (PO:0025173).'' Comment: Found in Cactaceae. Appears as a cluster of spine leaves. May be covered in trichomes (PO:0000282). In species with tubercles (PO:0025352), the areole bud is often found at the distal end of the tubercle. The areole bud originates in a leaf axil (PO:0009023) of a leaf that becomes a tubercle but is displaced to the tip of a tubercle through elongation of the tubercle.

Original comment by: rlwalls2008

[planteome-user]

At the POC meeting on 4-17-12, we worked on the definition of lamina areole.

Some thought that "smallest part" was too subjective and suggested using "unit" part. However, I think that unit more subjective. A meter is a unit and can still be divided into smaller units (centimeters). Smallest is not relative (unlike smaller), because there can be only one smallest part.

Propose new definitions:

phyllome lamina areole (PO:0025391): A cardinal organ part (PO:0025001) that is part of a phyllome lamina (PO:0025396) and is completely surrounded by phyllome lamina veins (PO:0025348) and cannot be divided into any smaller parts that are completely surrounded by phyllome lamina veins. Comment: Any order of phyllome lamina vein can form the sides of a phyllome lamina areole. Taken together, the phyllome lamina areoles form a contiguous field of polygons over the area of a phyllome lamina. part_of phyllome lamina

leaf lamina areole (PO:0025392): A phyllome lamina areole (PO:0025391) that is part of a leaf lamina (PO:0020039) and is completely surrounded by leaf lamina veins (PO:0020138) and cannot be divided into any smaller parts that are completely surrounded by leaf lamina veins. Comment: Any order of leaf lamina vein can form the sides of a leaf lamina areole. Taken together, the leaf lamina areoles form a contiguous field of polygons over the area of a leaf lamina. Free ending veinlets (PO:0025390) may be found within a leaf lamina areole. part_of leaf lamina

Original comment by: rlwalls2008