Abstract
The structure of the pit and antipit and their location at the interface of the soybean [ Glycine max (L.) Merr] seed coat and embryo were recently discussed in relation to seed development. The prevalence of these two structures in soybean and other Glycine species is not known. This study was undertaken to determine the prevalence of the pit and antipit in G. max, G. soja, G. canescens, G. clandestina, G. falcata, G. tabacina, G. tomentella , and G. latifolia . Seeds were dissected in half, viewed by light microscopy, then sputter coated and viewed by scanning electron microscopy (SEM). Also, images from five accessions of G. max, G. soja, G. latifolia, G. tomentella, G. clandestina , and G. tabacina were projected onto an image analyzer and measurements of the antipit were obtained. The shape of the pit and antipit varied within a species and were either elliptical or triangular. The area, height, and depth occupied by the pit and antipit, respectively, also varied among species. In most accessions, the pit was deeply concave, although, in a few accessions the cotyledon surface was nearly flat. Glycine max, G. soja , and G. tomentella had similar pit cells that were at least twice as long as they were wide. Glycine latifolia had the smallest antipit cells and G. max had the largest. The pit and antipit were prevalent in all the Glycine species examined, indicating that these structures are a common feature in the genus Glycine .
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Claims 7
Claim · model-written summary
Pit and antipit shapes varied within species and were elliptical or triangular.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The shape of the pit and antipit varied within a species and were either elliptical or triangular”
t0“Glycine”
Claim · model-written summary
Pit and antipit area, height and depth varied among species.
- Outcome
- area, height, and depth occupied by the pit and antipite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine”
e0“The area, height, and depth occupied by the pit and antipit, respectively, also varied among species”
Claim · model-written summary
The pit was deeply concave in most accessions but nearly flat in a few.
- Organ / stage
- pite0
- Outcome
- deeply concavee0
- Qualifier
- in a few accessions the cotyledon surface was nearly flate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine”
e0“In most accessions, the pit was deeply concave, although, in a few accessions the cotyledon surface was nearly flat”
Claim · model-written summary
Glycine max, G. soja and G. tomentella had similar pit cells at least twice as long as wide.
- Taxon
- Glycine max, G. soja , and G. tomentella
Glycine max
Glycine soja
Glycine tomentellae0 - Outcome
- pit cellse0
- Value
- at least twice as long as they were widee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max, G. soja , and G. tomentella had similar pit cells that were at least twice as long as they were wide”
Claim · model-written summary
Glycine latifolia had the smallest antipit cells.
- Taxon
- Glycine latifoliaGlycine latifoliae0
- Outcome
- antipit cellse0
- Direction
- smalleste0
Verbatim
e0“Glycine latifolia had the smallest antipit cells”
Claim · model-written summary
G. max had the largest antipit cells.
- Taxon
- G. maxGlycine maxe0
- Outcome
- largeste0
- Direction
- largeste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. max had the largest”
Claim · model-written summary
Pit and antipit were prevalent in all examined Glycine species.
- Outcome
- pit and antipit were prevalente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pit and antipit were prevalent in all the Glycine species examined”