Abstract
The main symptom of boron (B) deficiency in cotton is the formation of brown rings on leaf petioles. The objective of the present study was to determine the changes in the anatomical structure and chemical composition of petioles and photosynthesis of leaves in cotton under B deficiency. Compared to the control, B deficiency treatment resulted in large increases in the number of petioles with brown rings per plant (160.0%) and the number of rings on the petiole per functional leaf (711.1%) in cotton seedlings. The relative absorbance intensity in the fingerprint region of polysaccharide structure was decreased in petiole rings under B deficiency, while lignin contents were increased. Cotton plants mitigated the impairment of transport function in cotton petioles by increasing the areas of vascular bundles, phloem, xylem, and phloem fiber. Moreover, the stomatal conductance, photosynthetic rate, and transpiration rate in leaves were significantly decreased under B deficiency, thus impeding photosynthesis in cotton plants. Therefore, B deficiency reduces transport function in petioles and photosynthesis in leaves, and leads to the formation of noticeable brown rings on petioles of cotton seedlings.
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Claims 6
Claim · model-written summary
Boron deficiency increased the number of petioles with brown rings per cotton plant by 160.0% compared with the control.
- Taxon
- cotton
Gossypium hirsutumt0 - Organ / stage
- petiolese1
- Treatment
- B deficiencye1
- Outcome
- number of petioles with brown rings per plante1
- Direction
- increasese1
- Value
- 160.0%e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum L.)”
e1“Compared to the control, B deficiency treatment resulted in large increases in the number of petioles with brown rings per plant (160.0%) and the number of rings on the petiole per functional leaf (711.1%) in cotton seedlings”
Claim · model-written summary
Boron deficiency increased the number of rings on the petiole per functional leaf by 711.1% compared with the control.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- petiolee1
- Treatment
- B deficiencye1
- Outcome
- number of rings on the petiole per functional leafe1
- Direction
- increasese1
- Value
- 711.1%e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum L.)”
e1“Compared to the control, B deficiency treatment resulted in large increases in the number of petioles with brown rings per plant (160.0%) and the number of rings on the petiole per functional leaf (711.1%) in cotton seedlings”
Claim · model-written summary
Boron deficiency decreased the relative absorbance of polysaccharide structure in petiole rings of cotton.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- petiole ringse2
- Treatment
- B deficiencye2
- Outcome
- relative absorbance intensity in the fingerprint region of polysaccharide structuree2
- Direction
- decreasede2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum L.)”
e1“Compared to the control, B deficiency treatment resulted in large increases in the number of petioles with brown rings per plant (160.0%) and the number of rings on the petiole per functional leaf (711.1%) in cotton seedlings”
e2“The relative absorbance intensity in the fingerprint region of polysaccharide structure was decreased in petiole rings under B deficiency, while lignin contents were increased”
Claim · model-written summary
Boron deficiency increased lignin contents in cotton petiole rings.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- petiole ringse2
- Treatment
- B deficiencye2
- Outcome
- lignin contentse2
- Direction
- increasede2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum L.)”
e1“Compared to the control, B deficiency treatment resulted in large increases in the number of petioles with brown rings per plant (160.0%) and the number of rings on the petiole per functional leaf (711.1%) in cotton seedlings”
e2“The relative absorbance intensity in the fingerprint region of polysaccharide structure was decreased in petiole rings under B deficiency, while lignin contents were increased”
Claim · model-written summary
Cotton plants increased the areas of vascular bundles, phloem, xylem and phloem fiber in petioles, mitigating the impairment of transport function under boron deficiency.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- B deficiencye4
- Outcome
- areas of vascular bundles, phloem, xylem, and phloem fibere3
- Direction
- increasinge3
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum L.)”
e1“Compared to the control, B deficiency treatment resulted in large increases in the number of petioles with brown rings per plant (160.0%) and the number of rings on the petiole per functional leaf (711.1%) in cotton seedlings”
e3“Cotton plants mitigated the impairment of transport function in cotton petioles by increasing the areas of vascular bundles, phloem, xylem, and phloem fiber”
e4“Therefore, B deficiency reduces transport function in petioles”
Claim · model-written summary
Boron deficiency significantly decreased stomatal conductance, photosynthetic rate and transpiration rate in cotton leaves.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- leavese5
- Treatment
- B deficiencye5
- Outcome
- stomatal conductance, photosynthetic rate, and transpiration ratee5
- Direction
- decreasede5
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in cotton (Gossypium hirsutum L.)”
e1“Compared to the control, B deficiency treatment resulted in large increases in the number of petioles with brown rings per plant (160.0%) and the number of rings on the petiole per functional leaf (711.1%) in cotton seedlings”
e5“the stomatal conductance, photosynthetic rate, and transpiration rate in leaves were significantly decreased under B deficiency”
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