Abstract
UV-B radiation is an important part of the electromagnetic spectrum emitted by the sun. For much of the period of biological evolution organisms have been exposed to UV radiation, and have developed diverse mechanisms to cope with this potential stress factor. Roots are usually shielded from exposure to UV by the surrounding soil, but may nevertheless be exposed to high energy radiation on the soil surface. Due to their high sensitivity to UV-B radiation, plant roots need to respond rapidly in order to minimize exposure on the surface. In addition to root gravitropism, effective light perception by roots has recently been discovered to be essential for triggering negative root phototropism in Arabidopsis. However, it is not fully understood how UV-B affects root growth and phototropism. Here, we report that UV-B induces rapid generation of reactive oxygen species which in turn promotes the formation of BFA-induced compartments in the Arabidopsis root apex. During unilateral UV-B irradiation of roots changes in auxin concentration on the illuminated side have been recorded. In conclusion, UV-B-induced and ROS-mediated stimulation of vesicle recycling promotes root growth and induces negative phototropism.
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Claims 5
Claim · model-written summary
UV-B induces rapid generation of reactive oxygen species in Arabidopsis root apices.
- Taxon
- Arabidopsis
Arabidopsise1 - Organ / stage
- root apexe1
- Treatment
- UV-Be1
- Outcome
- generation of reactive oxygen speciese1
- Direction
- inducese1
- Qualifier
- rapide1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Here, we report that UV-B induces rapid generation of reactive oxygen species which in turn promotes the formation of BFA-induced compartments in the Arabidopsis root apex”
Claim · model-written summary
UV-B-induced reactive oxygen species promote the formation of BFA-induced compartments in Arabidopsis root apices.
- Taxon
- ArabidopsisArabidopsise1
- Compound
- reactive oxygen speciese1
- Outcome
- formation of BFA-induced compartmentse1
- Direction
- promotese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Here, we report that UV-B induces rapid generation of reactive oxygen species which in turn promotes the formation of BFA-induced compartments in the Arabidopsis root apex”
Claim · model-written summary
Unilateral UV-B irradiation of roots changed auxin concentration on the illuminated side.
- Taxon
- ArabidopsisArabidopsise1
- Organ / stage
- rootse2
- Treatment
- unilateral UV-B irradiatione2
- Outcome
- changes in auxin concentratione2
- Qualifier
- illuminated sidee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Here, we report that UV-B induces rapid generation of reactive oxygen species which in turn promotes the formation of BFA-induced compartments in the Arabidopsis root apex”
e2“During unilateral UV-B irradiation of roots changes in auxin concentration on the illuminated side have been recorded”
Claim · model-written summary
UV-B-induced ROS-mediated stimulation of vesicle recycling promotes root growth in Arabidopsis.
- Taxon
- ArabidopsisArabidopsise1
- Treatment
- UV-Be3
- Outcome
- root growthe3
- Direction
- promotese3
- Qualifier
- ROS-mediated stimulation of vesicle recyclinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Here, we report that UV-B induces rapid generation of reactive oxygen species which in turn promotes the formation of BFA-induced compartments in the Arabidopsis root apex”
e3“In conclusion, UV-B-induced and ROS-mediated stimulation of vesicle recycling promotes root growth and induces negative phototropism”
Claim · model-written summary
UV-B induces negative phototropism in Arabidopsis roots.
- Taxon
- ArabidopsisArabidopsise1
- Treatment
- UV-Be3
- Outcome
- negative phototropisme3
- Direction
- inducese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Here, we report that UV-B induces rapid generation of reactive oxygen species which in turn promotes the formation of BFA-induced compartments in the Arabidopsis root apex”
e3“In conclusion, UV-B-induced and ROS-mediated stimulation of vesicle recycling promotes root growth and induces negative phototropism”
The same questions in other papers
uv · growth · ArabidopsisPositive and negative results
3 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
7 papers more in this group
See all 11 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.