UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices
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 exposur...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2016-01-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2015.01162/full |
| _version_ | 1831737606865420288 |
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| author | Ken eYokawa Ken eYokawa Tomoko eKagenishi Frantisek eBaluska |
| author_facet | Ken eYokawa Ken eYokawa Tomoko eKagenishi Frantisek eBaluska |
| author_sort | Ken eYokawa |
| collection | DOAJ |
| description | 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 radiationon 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. |
| first_indexed | 2024-12-21T13:06:50Z |
| format | Article |
| id | doaj.art-7cc9e1e0da384423a9bca498ee688cb7 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-21T13:06:50Z |
| publishDate | 2016-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-7cc9e1e0da384423a9bca498ee688cb72022-12-21T19:03:00ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2016-01-01610.3389/fpls.2015.01162169793UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apicesKen eYokawa0Ken eYokawa1Tomoko eKagenishi2Frantisek eBaluska3University of BonnTokyo Metropolitan UniversityUniversity of BonnUniversity of BonnUV-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 radiationon 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.http://journal.frontiersin.org/Journal/10.3389/fpls.2015.01162/fullReactive Oxygen SpeciesrootUV-BNegative phototropismlight-escape tropism |
| spellingShingle | Ken eYokawa Ken eYokawa Tomoko eKagenishi Frantisek eBaluska UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices Frontiers in Plant Science Reactive Oxygen Species root UV-B Negative phototropism light-escape tropism |
| title | UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices |
| title_full | UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices |
| title_fullStr | UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices |
| title_full_unstemmed | UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices |
| title_short | UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices |
| title_sort | uv b induced generation of reactive oxygen species promotes formation of bfa induced compartments in cells of arabidopsis root apices |
| topic | Reactive Oxygen Species root UV-B Negative phototropism light-escape tropism |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2015.01162/full |
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