Abstract
Aloe vera is one of the most famous medicinal plants. Aloin and aloe emodin are the most important active compounds in this plant. The purpose of this research was the comparison of aloin and aloe emodin production after the elicitation by methyl jasmonate, salicylic acid, and phenylalanine in diploid and tetraploid Aloe vera plants in greenhouse conditions. The plants were treated with the concentrations of 25, 50, and 100 µM. The amounts of aloin and aloe emodin were determined 24 and 48 hours after application of the treatment. HPLC analysis showed that the leaves of the control diploid plants (without applying elicitors) had more aloin (1.20 fold) and aloe emodin (1.14 fold) than the control tetraploid plants. The maximum concentration of aloin (1.15 ± 0.07 µg mg-1 dry weight) was obtained after the elicitation by 25 µM methyl jasmonate, 24 hours after treatment, in diploid plants) 6.36 fold compared to the control (0.18 µg mg-1 dry weight (. In addition, the maximum concentration of aloe emodin (0.28 µg mg-1 dry weight) was obtained after the elicitation by 25 µM salicylic acid, 24 hours after treatment, in diploid plants) 6.18 fold compared to the control (0.04 µg mg-1 dry weight)). The long-term effect of three studied elicitors (after 240 days) on plant health and survival was also studied. This investigation showed that only methyl jasmonate at a concentration of 100 µM was resulted in the death of Aloe vera plants.
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Claims 5
Claim · model-written summary
Control diploid Aloe barbadensis leaves had more aloin than control tetraploid plants (1.20 fold).
- Material
- control diploid plantse1
- Organ / stage
- leavese1
- Outcome
- aloine1
- Direction
- moree1
- Value
- 1.20 folde1
- Comparator
- control tetraploid plantse1
Aloe veraOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in diploid and tetraploid Aloe barbadensis”
e1“the leaves of the control diploid plants (without applying elicitors) had more aloin (1.20 fold) and aloe emodin (1.14 fold) than the control tetraploid plants”
Claim · model-written summary
Control diploid Aloe barbadensis leaves had more aloe emodin than control tetraploid plants (1.14 fold).
- Material
- control diploid plantse1
- Organ / stage
- leavese1
- Outcome
- aloe emodine1
- Direction
- moree1
- Value
- 1.14 folde1
- Comparator
- control tetraploid plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in diploid and tetraploid Aloe barbadensis”
e1“the leaves of the control diploid plants (without applying elicitors) had more aloin (1.20 fold) and aloe emodin (1.14 fold) than the control tetraploid plants”
Claim · model-written summary
Methyl jasmonate at 25 µM gave the maximum aloin concentration in diploid Aloe barbadensis 24 hours after treatment.
- Material
- diploid plantse2
- Treatment
- 25 µM methyl jasmonatee2
- Outcome
- concentration of aloine2
- Direction
- maximume2
- Value
- 1.15 ± 0.07 µg mg-1 dry weighte2
- Qualifier
- 6.36 fold compared to the controle2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in diploid and tetraploid Aloe barbadensis”
e2“The maximum concentration of aloin (1.15 ± 0.07 µg mg-1 dry weight) was obtained after the elicitation by 25 µM methyl jasmonate, 24 hours after treatment, in diploid plants) 6.36 fold compared to the control (0.18 µg mg-1 dry weight”
Claim · model-written summary
Salicylic acid at 25 µM gave the maximum aloe emodin concentration in diploid Aloe barbadensis 24 hours after treatment.
- Material
- diploid plantse3
- Treatment
- 25 µM salicylic acide3
- Outcome
- concentration of aloe emodine3
- Direction
- maximume3
- Value
- 0.28 µg mg-1 dry weighte3
- Qualifier
- 6.18 fold compared to the controle3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in diploid and tetraploid Aloe barbadensis”
e3“the maximum concentration of aloe emodin (0.28 µg mg-1 dry weight) was obtained after the elicitation by 25 µM salicylic acid, 24 hours after treatment, in diploid plants) 6.18 fold compared to the control (0.04 µg mg-1 dry weight”
Claim · model-written summary
Methyl jasmonate at 100 µM resulted in the death of Aloe vera plants in the long-term study.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“This investigation showed that only methyl jasmonate at a concentration of 100 µM was resulted in the death of Aloe vera plants”
The same questions in other papers
salicylic acid · molecular: metabolites · Aloe vera (aloe-vera)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.