Microarray analyses and comparisons of upper or lower flanks of rice shoot base preceding gravitropic bending.
Microarray analyses and comparisons of upper or lower flanks of rice shoot base preceding gravitropic bending.
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重力弯曲前水稻芽基部上、下侧面的微阵列分析和比较
DOI：
10.1371/journal.pone.0074646
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Cai W
中科院分区：
文献类型：
--
作者：
Hu L;Mei Z;Zang A;Chen H;Dou X;Jin J;Cai W
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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DOI：
10.2187/bss.19.148
发表时间：
2005-01-01
期刊：
Biological Sciences in Space
影响因子：
--
作者：
Kamada, M.;Higashitani, A.;Ishioka, N.
通讯作者：
Ishioka, N.
影响因子：
7.4
作者：
Golan, A;Tepper, M;Gepstein, S
通讯作者：
Gepstein, S
影响因子：
7.4
作者：
Bancos, S;Nomura, T;Szekeres, M
通讯作者：
Szekeres, M
影响因子：
4.8
作者：
Knauss, S;Rohrmeier, T;Lehle, L
通讯作者：
Lehle, L
DOI：
10.1073/pnas.0507127103
发表时间：
2006-01-03
影响因子：
11.1
作者：
Esmon, CA;Tinsley, AG;Liscum, E
通讯作者：
Liscum, E