Abstract
Key protoplasmic features of stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized using light and electron microscopy. Endoplasmic reticulum (ER) cisternae are initially rough and often arranged in parallel arrays. During pore formation, the cytoplasm becomes packed with tubular, smooth ER. Older but still functional stomata contain small amounts of primarily cisternal ER. Lipid bodies decrease in electron density when tubular ER appears. Preliminary observations indicate that two large vacuoles occupy the polar regions of open, but not closed, stomata. Intact plasmodesmata occur in developing but not mature walls. Plastid structure, microtubule distribution, and other protoplasmic features are essentially similar to those described in the stomata of other genera.
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Claims 7
Claim · model-written summary
Endoplasmic reticulum cisternae are initially rough during stomatal development in Funaria hygrometrica.
- Taxon
- Funaria hygrometrica
_(49682759903).jpg?width=60)
Funaria hygrometricae7 - Organ / stage
- stomatal developmente7
- Outcome
- Endoplasmic reticulum (ER) cisternaee0
- Qualifier
- initially roughe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(49682759903).jpg?width=500)
Verbatim
e0“Endoplasmic reticulum (ER) cisternae are initially rough and often arranged in parallel arrays”
e7“stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized”
Claim · model-written summary
During pore formation the cytoplasm becomes packed with tubular, smooth ER in Funaria stomata.
- Taxon
- Funaria hygrometricaFunaria hygrometricae7
- Organ / stage
- pore formatione1
- Outcome
- tubular, smooth ERe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“During pore formation, the cytoplasm becomes packed with tubular, smooth ER”
e7“stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized”
Claim · model-written summary
Older but still functional Funaria stomata contain small amounts of primarily cisternal ER.
- Taxon
- Funaria hygrometricaFunaria hygrometricae7
- Organ / stage
- stomatae2
- Outcome
- cisternal ERe2
- Qualifier
- small amountse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Older but still functional stomata contain small amounts of primarily cisternal ER”
e7“stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized”
Claim · model-written summary
Lipid bodies decrease in electron density when tubular ER appears in Funaria stomatal development.
- Taxon
- Funaria hygrometricaFunaria hygrometricae7
- Organ / stage
- Lipid bodiese3
- Outcome
- electron densitye3
- Direction
- decreasee3
- Qualifier
- when tubular ER appearse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Lipid bodies decrease in electron density when tubular ER appears”
e7“stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized”
Claim · model-written summary
Preliminary observations indicate that two large vacuoles occupy the polar regions of open stomata but not closed stomata.
- Taxon
- Funaria hygrometricaFunaria hygrometricae7
- Organ / stage
- stomatae4
- Outcome
- two large vacuoles occupy the polar regionse4
- Qualifier
- Preliminary observationse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Preliminary observations indicate that two large vacuoles occupy the polar regions of open, but not closed, stomata”
e7“stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized”
Claim · model-written summary
Intact plasmodesmata occur in developing but not in mature Funaria walls.
- Taxon
- Funaria hygrometricaFunaria hygrometricae7
- Organ / stage
- developing but not mature wallse5
- Outcome
- Intact plasmodesmatae5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Intact plasmodesmata occur in developing but not mature walls”
e7“stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized”
Claim · model-written summary
Plastid structure and microtubule distribution in Funaria stomata are essentially similar to those of other genera.
- Taxon
- Funaria hygrometricaFunaria hygrometricae7
- Outcome
- Plastid structure, microtubule distributione6
- Direction
- essentially similare6
- Comparator
- stomata of other generae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Plastid structure, microtubule distribution, and other protoplasmic features are essentially similar to those described in the stomata of other genera”
e7“stomatal development in Funaria hygrometrica Hedw. (Musci) were characterized”