ArticlePloS one2013
Microarray analyses and comparisons of upper or lower flanks of rice shoot base preceding gravitropic bending.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 18 citations in OpenAlex.
- How it all begins: molecular players of the early graviresponse in the non-elongating part of flax stem.Plant molecular biology · 2025Article
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
- Selection of optimal reference genes for qRT-PCR analysis of shoot development and graviresponse in prostrate and erect chrysanthemums.PloS one · 2019Article
- A Core Regulatory Pathway Controlling Rice Tiller Angle Mediated by theThe Plant cell · 2018Article
- A subset of plasma membrane-localized PP2C.D phosphatases negatively regulate SAUR-mediated cell expansion in Arabidopsis.PLoS genetics · 2018Article
- Article
- Genome-wide association mapping for root cone angle in rice.Rice (New York, N.Y.) · 2017Article
- SAUR Proteins as Effectors of Hormonal and Environmental Signals in Plant Growth.Molecular plant · 2015Review
- A Bird's-Eye View of Molecular Changes in Plant Gravitropism Using Omics Techniques.Frontiers in plant science · 2015Review
- Identification of gravitropic response indicator genes in Arabidopsis inflorescence stems.Plant signaling & behavior · 2014Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gravitropism is a complex process involving a series of physiological pathways. Despite ongoing research, gravitropism sensing and response mechanisms are not well understood. To identify the key transcripts and corresponding pathways in gravitropism, a whole-genome microarray approach was used to analyze transcript abundance in the shoot base of rice (Oryza sativa sp. japonica) at 0.5 h and 6 h after gravistimulation by horizontal reorientation. Between upper and lower flanks of the shoot base, 167 transcripts at 0.5 h and 1202 transcripts at 6 h were discovered to be significantly different in abundance by 2-fold. Among these transcripts, 48 were found to be changed both at 0.5 h and 6 h, while 119 transcripts were only changed at 0.5 h and 1154 transcripts were changed at 6 h in association with gravitropism. MapMan and PageMan analyses were used to identify transcripts significantly changed in abundance. The asymmetric regulation of transcripts related to phytohormones, signaling, RNA transcription, metabolism and cell wall-related categories between upper and lower flanks were demonstrated. Potential roles of the identified transcripts in gravitropism are discussed. Our results suggest that the induction of asymmetrical transcription, likely as a consequence of gravitropic reorientation, precedes gravitropic bending in the rice shoot base.
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