Comparative Transcriptomics of Multi-Stress Responses in Pachycladon cheesemanii and Arabidopsis thaliana

The environment is seldom optimal for plant growth and changes in abiotic and biotic signals, including temperature, water availability, radiation and pests, induce plant responses to optimise survival. The New Zealand native plant species and close relative to , grows under environmental conditions...

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Published inInternational journal of molecular sciences Vol. 24; no. 14; p. 11323
Main Authors Dong, Yanni, Gupta, Saurabh, Wargent, Jason J, Putterill, Joanna, Macknight, Richard C, Gechev, Tsanko S, Mueller-Roeber, Bernd, Dijkwel, Paul P
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 11.07.2023
MDPI
Subjects
Abiotic stress
Arabidopsis
Cold
comparative transcriptomics
cross-species comparison
Flowers & plants
Gene expression
Genomes
multi-stress responses
network analysis
Pachycladon
Precipitation
Radiation
Salinity
Temperature
Pachycladon
multi-stress responses
network analysis
cross-species comparison
Arabidopsis
comparative transcriptomics
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Summary:The environment is seldom optimal for plant growth and changes in abiotic and biotic signals, including temperature, water availability, radiation and pests, induce plant responses to optimise survival. The New Zealand native plant species and close relative to , grows under environmental conditions that are unsustainable for many plant species. Here, we compare the responses of both species to different stressors (low temperature, salt and UV-B radiation) to help understand how can grow in such harsh environments. The stress transcriptomes were determined and comparative transcriptome and network analyses discovered similar and unique responses within species, and between the two plant species. A number of widely studied plant stress processes were highly conserved in and . However, in response to cold stress, Gene Ontology terms related to glycosinolate metabolism were only enriched in . Salt stress was associated with alteration of the cuticle and proline biosynthesis in and , respectively. Anthocyanin production may be a more important strategy to contribute to the UV-B radiation tolerance in . These results allowed us to define broad stress response pathways in and and suggested that regulation of glycosinolate, proline and anthocyanin metabolism are strategies that help mitigate environmental stress.
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Present address: Curtin Medical School, Curtin University, 410 Koorliny Way, Bentley, WA 6102, Australia.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms241411323