Abstract
Using the paraffin section technique,under light microscope,the roots,stems,leaves and other vegetative organ anatomical structures of Portulacaria afra were observed,in order to explore the structure of vegetative organs of the characteristics of drought resistance.The results showed that the roots and stems of Portulacaria afra were with secondary growth,producing periderm and secondery vascular tissue.There were many big water cells in the cortex of roots and stems,marrow of stems,and mesophyll of leaves.There were abnormal cells dyed into red-brown or dark-grey in roots,stems and leaves.There were a few cells with cluster crystals in stems and leaves.The aperture of catheter was bigger and there were many axial direction wood parenchyma cells in the secondary xylem of roots.There were many starch grains in the parenchyma cells of stems,and surface of stems was with concentrated small papillae.The leaves with thick cuticle on the surface were fleshy thick and isobitateral.The stomata were paracytic type.Some characteristics were relative to drought resistance such as bigger aperture of catheter and developed wood parenchyma of roots,many water cells in roots,stems and leaves.
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Claims 9
Claim · model-written summary
Roots and stems showed secondary growth, producing periderm and secondary vascular tissue.
- Taxon
- Portulacaria afra
Portulacaria afrae0 - Outcome
- secondary growth,producing periderm and secondery vascular tissuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the roots and stems of Portulacaria afra were with secondary growth,producing periderm and secondery vascular tissue.”
Claim · model-written summary
Large water cells occurred in root and stem cortex, stem pith, and leaf mesophyll.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Outcome
- many big water cells in the cortex of roots and stems,marrow of stems,and mesophyll of leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were many big water cells in the cortex of roots and stems,marrow of stems,and mesophyll of leaves.”
t0“Portulacaria afra”
Claim · model-written summary
Abnormally stained cells occurred in roots, stems, and leaves.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Outcome
- abnormal cells dyed into red-brown or dark-greye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were abnormal cells dyed into red-brown or dark-grey in roots,stems and leaves.”
t0“Portulacaria afra”
Claim · model-written summary
A few stem and leaf cells contained cluster crystals.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Outcome
- cells with cluster crystalse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were a few cells with cluster crystals in stems and leaves.”
t0“Portulacaria afra”
Claim · model-written summary
Root secondary xylem had large vessel apertures and many axial wood parenchyma cells.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Outcome
- aperture of catheter was bigger and there were many axial direction wood parenchyma cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aperture of catheter was bigger and there were many axial direction wood parenchyma cells in the secondary xylem of roots.”
t0“Portulacaria afra”
Claim · model-written summary
Stems contained many starch grains and concentrated small surface papillae.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Outcome
- many starch grains in the parenchyma cells of stems,and surface of stems was with concentrated small papillaee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were many starch grains in the parenchyma cells of stems,and surface of stems was with concentrated small papillae.”
t0“Portulacaria afra”
Claim · model-written summary
Leaves were thick and fleshy with thick cuticle and isobilateral anatomy.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Outcome
- thick cuticle on the surface were fleshy thick and isobitaterale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaves with thick cuticle on the surface were fleshy thick and isobitateral.”
t0“Portulacaria afra”
Claim · model-written summary
Stomata were paracytic.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Outcome
- stomata were paracytic typee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stomata were paracytic type.”
t0“Portulacaria afra”
Claim · model-written summary
The authors related large root vessel apertures, developed wood parenchyma, and water cells to drought resistance.
- Taxon
- Portulacaria afraPortulacaria afrat0
- Organ / stage
- roots,stems and leavese0
- Outcome
- drought resistancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some characteristics were relative to drought resistance such as bigger aperture of catheter and developed wood parenchyma of roots,many water cells in roots,stems and leaves.”
t0“Portulacaria afra”