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Plant Responses to Stress - Coggle Diagram
Plant Responses to Stress
Literature Review
Key words
abiotic stress - UV Radiation what it is
protective measures.
how UV affects plants
topic: How plants protect themselves from the damaging effects of UV radiation (2500 words)
main topics to cover
how can this knowledge be used to improve drop management and protection.
mechanistic basis of the response to the stress
growth
development
physiological
molecular responses
report
1) Introduction
1.2) how UV radiation effects plants
morphological, physiological, photosynthesis, ect
causes mutations
1.3) main types of protection
biosynthesis, physical, adaptations and acclimations
lay out order
1.1) what is UV radiation and main types
UV-A, UV-B and UV-C
2) avoidance based protective measures
2.1) morphological adaptations
such as waxy cuticle and hairs
2.2) morphological acclimation affecting growth
as leaves size, internode length reduces
conserving resurces
2.4) Protective measures in outer and epidermal layers / Increase in UV absorbing pigments
2.3) physiological adaptions and acclimations
can also involve increases size of palisade cells
increased palisade cells and chlorophyll clumping
then secondary metabolites like phenolic compounds are used in acclimation to the increased UV-B radiation via absorption
photoreceptors detect them
2.5) Use of biochemical measures to protect against ROS damage
acclimatise and metabolise the reactive oxagen species , antioxidase enzymes and non-enzymes
kill cells off
2.6 ) Dissipation :red_flag: of excess energy in photosynthetic apparatus
carotene, xanthophylls, terpens are accumulated and can be used to thermally deactivate in the photosynthetic apparatus via quenching
3) repair damage
3.1) remairing damaged DNA
light and dark reaction vary
concliusion