In the field, perennial plants such as poplar (Populus spp.) must adapt to simultaneous exposure to various abiotic stresses, which can affect their growth and survival. However, the mechanisms for stress-specific adaption in response to different abiotic stresses remain unclear. Thus, understanding the unique acclimation process for each abiotic treatment will require a comprehensive and systematic comparison of the responses of poplar to different abiotic stresses. To compare the responses to multiple stresses, we compared physiological effects and transcriptome changes in poplar under four abiotic stresses (salinity, osmotic, heat and cold). Photosynthesis and antioxidant enzymes changed significantly after 6 h abiotic stress treatment. Therefore, using 6 h abiotic stress treatment groups for transcriptome analysis, we identified a set of 863 differentially expressed genes (653 up-regulated and 210 down-regulated) common to osmotic, salinity, heat and cold treatment. We also identified genes specific to osmotic (1,739), salinity (1,222), cold (2,508) and heat (3,200), revealing that salinity stress has the fewest differently-expressed genes. After gene annotation, we found differences in expression of genes related to electron transport, stomatal control, antioxidant enzymes, cell wall alteration, and phytohormone biosynthesis and signaling in response to various abiotic stresses. This study provides new insights to improve our understanding of the mechanisms by which poplar adapts under different abiotic stress conditions and provides new clues for further studies.
Plant Molecular Biology – Springer Journals
Published: Jul 8, 2014
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera
Read and print from thousands of top scholarly journals.
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
ok to continue