Mitochondrial retrograde regulation of HSP101 expression in Arabidopsis thaliana under heat stress and amiodarone action

2013 ◽  
Vol 61 (1) ◽  
pp. 80-89 ◽  
Author(s):  
D. V. Pyatrikas ◽  
E. G. Rikhvanov ◽  
I. V. Fedoseeva ◽  
N. N. Varakina ◽  
T. M. Rusaleva ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Heat Stress ◽  
Retrograde Regulation

Expression of calmodulin genes in wild type and calmodulin mutants of Arabidopsis thaliana under heat stress

2010 ◽  
Vol 48 (8) ◽  
pp. 697-702 ◽  
Author(s):  
Nisreen A. AL-Quraan ◽  
Robert D. Locy ◽  
Narendra K. Singh
Keyword(s):  
Arabidopsis Thaliana ◽  
Heat Stress ◽  
Wild Type

scholarly journals Transcriptome and translatome changes in germinated pollen under heat stress uncover roles of transporter genes involved in pollen tube growth

2020 ◽  
Author(s):  
Laetitia Poidevin ◽  
Javier Forment ◽  
Dilek Unal ◽  
Alejandro Ferrando
Keyword(s):  
Arabidopsis Thaliana ◽  
Heat Stress ◽  
High Temperature ◽  
Heat Shock ◽  
Pollen Tube ◽  
Pollen Tube Growth ◽  
Tube Growth ◽  
Heat Shock Genes ◽  
Germinated Pollen

ABSTRACTPlant reproduction is one key biological process very sensitive to heat stress and, as a consequence, enhanced global warming poses serious threats to food security worldwide. In this work we have used a high-resolution ribosome profiling technology to study how heat affects both the transcriptome and the translatome of Arabidopsis thaliana pollen germinated in vitro. Overall, a high correlation between transcriptional and translational responses to high temperature was found, but specific regulations at the translational level were also present. We show that bona fide heat shock genes are induced by high temperature indicating that in vitro germinated pollen is a suitable system to understand the molecular basis of heat responses. Concurrently heat induced significant down-regulation of key membrane transporters required for pollen tube growth, thus uncovering heat-sensitive targets. We also found that a large subset of the heat-repressed transporters is specifically up-regulated, in a coordinated manner, with canonical heat-shock genes in pollen tubes grown in vitro and semi in vivo, based on published transcriptomes from Arabidopsis thaliana. Ribosome footprints were also detected in gene sequences annotated as non-coding, highlighting the potential for novel translatable genes and translational dynamics.

Overexpression of ZmMAPK1 enhances drought and heat stress in transgenic Arabidopsis thaliana

2015 ◽  
Vol 88 (4-5) ◽  
pp. 429-443 ◽  
Author(s):  
Liuji Wu ◽  
Xiaofeng Zu ◽  
Huimin Zhang ◽  
Liancheng Wu ◽  
Zhangying Xi ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Heat Stress ◽  
Transgenic Arabidopsis ◽  
Transgenic Arabidopsis Thaliana ◽  
Drought And Heat Stress

Regulation of Arabidopsis thaliana Ku genes at different developmental stages under heat stress

2008 ◽  
Vol 1779 (6-7) ◽  
pp. 402-407 ◽  
Author(s):  
Pei Feng Liu ◽  
Yung Kai Wang ◽  
Wen Chi Chang ◽  
Hwan You Chang ◽  
Rong Long Pan
Keyword(s):  
Arabidopsis Thaliana ◽  
Heat Stress ◽  
Developmental Stages

scholarly journals Characterization of novel pollen-expressed transcripts reveals their potential roles in pollen heat stress response in Arabidopsis thaliana

2020 ◽  
Author(s):  
Nicholas Rutley ◽  
Laetitia Poidevin ◽  
Tirza Doniger ◽  
Richard Tillet ◽  
Abhishek Rath ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Heat Stress ◽  
Regulatory Networks ◽  
Male Gametophyte ◽  
Open Reading Frames ◽  
Heat Stress Response ◽  
Rna Fragments ◽  
Response To Stress ◽  
Small Open Reading Frames

ABSTRACTThe male gametophyte is the most heat-sensitive of all plant tissues. In recent years, long noncoding RNAs (lncRNAs) have emerged as important components of cellular regulatory networks involved in most biological processes, including response to stress. While examining RNAseq datasets of developing and germinating Arabidopsis thaliana pollen exposed to heat stress (HS), we identified 66 novel and 246 recently-annotated intergenic expressed loci (XLOCs) of unknown function, with the majority encoding lncRNAs. Comparison to HS in cauline leaves and other RNAseq experiments, indicated 74% of the 312 XLOCs are pollen-specific, and at least 42% are HS-responsive. Phylogenetic analysis revealed 96% of the genes evolved recently in Brassicaceae. We found that 50 genes are putative targets of microRNAs, and that 30% of the XLOCs contain small open reading frames (ORFs) with homology to protein sequences. Finally, RNAseq of ribosome-protected RNA fragments together with predictions of periodic footprint of the ribosome P-sites indicated that 23 of these ORFs are likely to be translated. Our findings indicate that many of the 312 unknown genes might be functional, and play significant role in pollen biology, including the HS response.

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