Abstract
Catharanthus roseus is one of the most extensively investigated medicinal plants. Increase the concentrations of TIAs in plant organs, by biotic and abiotic treatments, is an important breeding objective on C. roseus. The effect of plant growth promoting rhizobacteria, Pseudomonas fluorescens and Azospirillum brasilense separately and in combination along with moisture treatment at two levels were tested in Catharanthus roseus as a factorial experiment based on randomized complete block design in three replications. Effect of treatments was evaluated 30 days after applying moisture treatments on some of morphological traits and Tdc and Str genes expression at the root of plant using qRT-PCR reaction. Water deficit significantly increased root length but it had no significant effect on the expression of these genes. Treatment with A. brasilense in normal condition enhanced length, volume and surface of roots, also significantly increased Str key gene expression. P. fluorescens had a positive and significant effect on the expression of the studied genes under normal and stress conditions compared to the control plants, despite the decrease in the amount of morphological traits. P. fluorescens and A. brasilense, separately, performed better in terms of their effects on the expression of the studied genes and increased the gene expression in normal and stress conditions compared to control plants. It is expected that by increasing the expression of Tdc and Str genes, the product of these genes as well as the final products of TIAs biosynthetic pathway, including ajmalicin content enhance at the root of periwinkle plant.
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Claims 7
Claim · model-written summary
Water deficit significantly increased root length.
- Taxon
- Catharanthus roseus
Catharanthus roseust0 - Treatment
- Water deficite0
- Outcome
- root lengthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit significantly increased root length”
t0“Catharanthus roseus”
Claim · model-written summary
Water deficit did not significantly change Tdc and Str expression.
- Taxon
- Catharanthus roseusCatharanthus roseust0
- Treatment
- Water deficite1
- Gene
- Tdc and Str genese2
- Outcome
- expression of these genese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it had no significant effect on the expression of these genes”
e1“Water deficit significantly increased root length”
e2“Tdc and Str genes expression”
t0“Catharanthus roseus”
Claim · model-written summary
A. brasilense enhanced root length, volume and surface under normal conditions.
- Taxon
- Catharanthus roseusCatharanthus roseust0
- Treatment
- Treatment with A. brasilensee0
- Interactor
- A. brasilense
Azospirillum brasilensee0symbiont - Outcome
- length, volume and surface of rootse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with A. brasilense in normal condition enhanced length, volume and surface of roots”
t0“Catharanthus roseus”
Claim · model-written summary
A. brasilense increased Str expression under normal conditions.
- Taxon
- Catharanthus roseusCatharanthus roseust0
- Treatment
- Treatment with A. brasilensee0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Gene
- Stre0
- Outcome
- Str key gene expressione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with A. brasilense in normal condition enhanced length, volume and surface of roots, also significantly increased Str key gene expression”
t0“Catharanthus roseus”
Claim · model-written summary
P. fluorescens significantly increased studied gene expression under normal and stress conditions.
- Taxon
- Catharanthus roseusCatharanthus roseust0
- Treatment
- P. fluorescense0
- Interactor
- P. fluorescens
.JPG?width=60)
Pseudomonas fluorescense0symbiont - Gene
- Tdc and Str genese1
- Outcome
- expression of the studied genese0
- Direction
- positivee0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“P. fluorescens had a positive and significant effect on the expression of the studied genes under normal and stress conditions compared to the control plants”
e1“Tdc and Str genes expression”
t0“Catharanthus roseus”
Claim · model-written summary
P. fluorescens decreased root morphological traits.
- Taxon
- Catharanthus roseusCatharanthus roseust0
- Treatment
- P. fluorescense1
- Interactor
- P. fluorescensPseudomonas fluorescense1symbiont
- Outcome
- morphological traitse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“despite the decrease in the amount of morphological traits”
e1“P. fluorescens had a positive and significant effect”
t0“Catharanthus roseus”
Claim · model-written summary
A. brasilense increased studied gene expression under normal and stress conditions compared with controls.
- Taxon
- Catharanthus roseusCatharanthus roseust0
- Treatment
- A. brasilensee0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- gene expressione0
- Direction
- increasede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. fluorescens and A. brasilense, separately, performed better in terms of their effects on the expression of the studied genes and increased the gene expression in normal and stress conditions compared to control plants”
t0“Catharanthus roseus”
The same questions in other papers
drought · molecular: expression · Catharanthus roseus (Madagascar periwinkle)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
drought · growth · Catharanthus roseus (Madagascar periwinkle)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 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.