Abstract
High-temperature and high-light are the main adversity stresses faced by strawberry seedlings and open-field cultivation in summer. Chitosan (CTS) is widely used in agriculture as a soil amendment, plant growth regulator, and promoter of cold resistance. However, the effects of CTS on strawberry seedlings under the combined stress of high-temperature and high-light are unclear. This study aimed to determine the effect of CTS on strawberry seedlings under the combined stress of high-temperature and high-light. In this study, Xuelixiang strawberry was used as the experimental plant material. The leaves were sprayed with 100 mg/Kg CTS or deionized aqueous solution and placed under high-temperature and high-light (38 °C, 1800 μ mol·m−2·s−1, respectively) for 8 h. In addition, a suitable temperature and light (23 °C, 400 μ mol·m−2·s−1, respectively) was sprayed with deionized water as a control. The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment; the net CO2 exchange (Pn) increased by 74.9%; and the maximum photochemical efficiency increased by 20.1%. In addition, CTS treatment increased the content of antioxidants; increased osmotic adjustment substances; improved the activity of reduced glutathione with reduced ascorbic acid (AsA-GSH) circulating antioxidant enzymes; removed reactive oxygen species in plants in time; and reduced the damage of reactive oxygen species to photosynthetic organs and cell membranes, thereby reducing high-temperature and high-light injury to strawberry seedlings. This study shows that CTS can improve the negative effects of high-temperature and high-light stress on strawberry seedlings.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
CTS treatment increased chlorophyll content in strawberry plants by 16.9% compared with non-CTS treatment.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- CTS treatmente1
- Outcome
- chlorophyll (Chl) contente1
- Direction
- increasede1
- Value
- 16.9%e1
- Comparator
- non-CTS treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
Claim · model-written summary
CTS treatment increased net CO2 exchange (Pn) in strawberry seedlings by 74.9% compared with non-CTS treatment.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- CTS treatmente1
- Outcome
- net CO2 exchange (Pn)e2
- Direction
- increasede2
- Value
- 74.9%e2
- Comparator
- non-CTS treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
e2“the net CO2 exchange (Pn) increased by 74.9%”
Claim · model-written summary
CTS treatment increased the maximum photochemical efficiency of strawberry seedlings by 20.1% compared with non-CTS treatment.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- CTS treatmente1
- Outcome
- maximum photochemical efficiencye3
- Direction
- increasede3
- Value
- 20.1%e3
- Comparator
- non-CTS treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
e3“the maximum photochemical efficiency increased by 20.1%”
Claim · model-written summary
CTS treatment increased the content of antioxidants in strawberry seedlings.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- CTS treatmente1
- Outcome
- content of antioxidantse4
- Direction
- increasede4
- Comparator
- non-CTS treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
e4“CTS treatment increased the content of antioxidants”
Claim · model-written summary
CTS treatment increased osmotic adjustment substances in strawberry seedlings.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- CTS treatmente1
- Outcome
- osmotic adjustment substancese5
- Direction
- increasede5
- Comparator
- non-CTS treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
e5“increased osmotic adjustment substances”
Claim · model-written summary
CTS treatment improved the activity of circulating antioxidant enzymes in strawberry seedlings.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- CTS treatmente1
- Gene
- circulating antioxidant enzymese6
- Outcome
- activitye6
- Direction
- improvede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
e6“improved the activity of reduced glutathione with reduced ascorbic acid (AsA-GSH) circulating antioxidant enzymes”
Claim · model-written summary
CTS treatment removed reactive oxygen species in strawberry seedlings in time.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- CTS treatmente1
- Outcome
- reactive oxygen speciese7
- Direction
- removede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
e7“removed reactive oxygen species in plants in time”
Claim · model-written summary
CTS treatment reduced the damage of reactive oxygen species to photosynthetic organs and cell membranes of strawberry seedlings.
- Taxon
- strawberryFragaria ×ananassat0
- Organ / stage
- photosynthetic organse5
- Treatment
- CTS treatmente1
- Outcome
- damage of reactive oxygen speciese5
- Direction
- reducede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e1“The results showed that compared with non-CTS treatment, the chlorophyll (Chl) content in strawberry plants increased by 16.9% after CTS treatment”
e5“reduced the damage of reactive oxygen species to photosynthetic organs and cell membranes”
Claim · model-written summary
CTS treatment reduced high-temperature and high-light injury to strawberry seedlings.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- high-temperature and high-lighte6
- Outcome
- high-temperature and high-light injury to strawberry seedlingse6
- Direction
- reducinge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Seedlings”
e6“reducing high-temperature and high-light injury to strawberry seedlings”
The same questions in other papers
chitosan · physiology: photosynthesis · Fragaria x ananassa (strawberry)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
chitosan · molecular: metabolites · Fragaria x ananassa (strawberry)Positive and negative results
12 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
10 papers more in this group
See all 14 papers →chitosan · physiology: water · Fragaria x ananassa (strawberry)Results agree
2 papers in the same direction as this paper
- positive
- positive
chitosan · physiology: pigments · Fragaria x ananassa (strawberry)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.