Abstract
In vitro cell suspension cultivation systems have been largely reported as safe and standardized methods for production of secondary metabolites with medicinal and agricultural interest. Capsicum annuum is one of the most widely grown vegetable in the world and its biological activities have been demonstrated against insects, fungi, bacteria and other groups of organisms. The determination of procedures for the dedifferentiation of cells into callus cells and the subsequent study of the callus growth pattern are necessary for the establishment of cell suspensions and also to subsidize studies regarding the bioactivity of its secondary metabolites. The objective of this study was to establish a protocol for dedifferentiation of leaf cells of the cultivar C. annuum cv. Etna and to determine the growth pattern of the calluses with a focus on the deceleration phase, when the callus cells must be subcultured into a liquid medium in order to establish cell suspension cultivations aiming at the production of secondary metabolites. treatment that resulted in the highest %CI, ACCC and callus weight was the combination of 4.52 µM 2,4-D + 0.44 µM BA. The calluses produced were friable and whitish and their growth pattern followed a sigmoid shape. The deceleration phase started on the 23rd day of cultivation. Callus induction in leaf explants of C. annuum cv. Etna can be achieved in MS medium supplemented with 4.52 µM 2,4-D + 0.44 µM BA, which results in high cellular proliferation; in order to start a cell suspension culture, callus cells on the 23rd day of culture should be used.
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Claims 5
Claim · model-written summary
The 4.52 µM 2,4-D plus 0.44 µM BA treatment gave the highest callus induction, cell coverage and callus weight.
- Taxon
- Capsicum annuum
Capsicum annuumt0 - Treatment
- 4.52 µM 2,4-D + 0.44 µM BAe0
- Outcome
- %CI, ACCC and callus weighte0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment that resulted in the highest %CI, ACCC and callus weight was the combination of 4.52 µM 2,4-D + 0.44 µM BA”
t0“Capsicum annuum cv. Etna”
Claim · model-written summary
The produced calluses were friable and whitish.
- Outcome
- friable and whitishe0
Not reportedTaxon
Verbatim
e0“The calluses produced were friable and whitish”
Claim · model-written summary
Callus growth followed a sigmoid pattern.
Not reportedTaxon
Verbatim
e0“their growth pattern followed a sigmoid shape”
Claim · model-written summary
Callus growth entered the deceleration phase on day 23.
Not reportedTaxon
Verbatim
e0“The deceleration phase started on the 23rd day of cultivation”
Claim · model-written summary
The authors recommend day-23 callus cells to start cell suspension culture.
Not reportedTaxon
Verbatim
e0“in order to start a cell suspension culture, callus cells on the 23rd day of culture should be used”
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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.