Plant defense under Arctic light conditions: Can plants withstand invading pests?

0564696 - BC 2023 RIV CH eng J - Článek v odborném periodiku
Mithöfer, A. - Riemann, M. - Faehn, C. A. - Mrázová, Anna - Jaakola, L.
Plant defense under Arctic light conditions: Can plants withstand invading pests?
Frontiers in Plant Science. Roč. 13, NOV 24 (2022), č. článku 1051107. ISSN 1664-462X. E-ISSN 1664-462X
Institucionální podpora: RVO:60077344
Klíčová slova: climate change * pest distribution * plant defense
Obor OECD: Plant sciences, botany
Impakt faktor: 5.6, rok: 2022
Způsob publikování: Open access
https://www.frontiersin.org/articles/10.3389/fpls.2022.1051107/pdf

Global warming is predicted to change the growth conditions for plants and crops in regions at high latitudes (>60° N), including the Arctic. This will be accompanied by alterations in the composition of natural plant and pest communities, as herbivorous arthropods will invade these regions as well. Interactions between previously non-overlapping species may occur and cause new challenges to herbivore attack. However, plants growing at high latitudes experience less herbivory compared to plants grown at lower latitudes. We hypothesize that this finding is due to a gradient of constitutive chemical defense towards the Northern regions. We further hypothesize that higher level of defensive compounds is mediated by higher level of the defense-related phytohormone jasmonate. Because its biosynthesis is light dependent, Arctic summer day light conditions can promote jasmonate accumulation and, hence, downstream physiological responses. A pilot study with bilberry (Vaccinium myrtillus) plants grown under different light regimes supports the hypothesis.
Trvalý link: https://hdl.handle.net/11104/0338939