Abstract:
BACKGROUND:Silicon (Si) has been known to regulate plant growth; however, the underlying mechanisms of short-term exogenous Si application on the regulation of calcium (Ca) and nitrogen (N), endogenous phytohormones, and expression of essential proteins have been little understood. RESULTS:Exogenous Si application significantly increased Si content as compared to the control. Among Si treatments, 1.0 mM Si application showed increased phosphorus content as compared to other Si treatments (0.5, 2.0, and 4.0 mM). However, Ca accumulation was significantly reduced (1.8- to 2.0-fold) at the third-leaf stage in the control, whereas all Si treatments exhibited a dose-dependent increase in Ca as determined by radioisotope 45Ca analysis. Similarly, the radioisotope 15N for nitrogen localization and uptake showed a varying but reduced response (ranging from 1.03-10.8%) to different Si concentrations as compared to 15N application alone. Physiologically active endogenous gibberellin (GA1) was also significantly higher with exogenous Si (1.0 mM) as compared to GA20 and the control plants. A similar response was noted for endogenous jasmonic and salicylic acid synthesis in rice plants with Si application. Proteomic analysis revealed the activation of several essential proteins, such as Fe-S precursor protein, putative thioredoxin, Ser/Thr phosphatase, glucose-6-phosphate isomerase (G6P), and importin alpha-1b (Imp3), with Si application. Among the most-expressed proteins, confirmatory gene expression analysis for G6P and Imp3 showed a similar response to those of the Si treatments. CONCLUSIONS:In conclusion, the current results suggest that short-term exogenous Si can significantly regulate rice plant physiology by influencing Ca, N, endogenous phytohormones, and proteins, and that 1.0 mM Si application is more beneficial to plants than higher concentrations.
journal_name
BMC Plant Bioljournal_title
BMC plant biologyauthors
Jang SW,Kim Y,Khan AL,Na CI,Lee IJdoi
10.1186/s12870-017-1216-ysubject
Has Abstractpub_date
2018-01-04 00:00:00pages
4issue
1issn
1471-2229pii
10.1186/s12870-017-1216-yjournal_volume
18pub_type
杂志文章abstract:BACKGROUND:Long noncoding RNAs (lncRNAs) have several known functions involving various biological regulatory processes in plant. However, the possible roles of lncRNAs during peanut seed development have not been fully explored. RESULTS:In this study, two peanut recombinant inbred lines (RIL8) that differ in seed siz...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02405-4
更新日期:2020-05-06 00:00:00
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pub_type: 杂志文章
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更新日期:2010-04-28 00:00:00
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更新日期:2020-06-09 00:00:00
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pub_type: 杂志文章
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更新日期:2010-11-02 00:00:00
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更新日期:2019-12-27 00:00:00
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pub_type: 杂志文章
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更新日期:2017-06-15 00:00:00
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pub_type: 杂志文章
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更新日期:2014-09-30 00:00:00
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更新日期:2020-05-27 00:00:00
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pub_type: 杂志文章
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更新日期:2014-06-16 00:00:00
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更新日期:2021-01-07 00:00:00
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pub_type: 杂志文章,已发布勘误
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更新日期:2018-01-15 00:00:00
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journal_title:BMC plant biology
pub_type: 杂志文章
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更新日期:2006-12-20 00:00:00
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更新日期:2020-07-16 00:00:00
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pub_type: 杂志文章
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更新日期:2014-08-29 00:00:00
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journal_title:BMC plant biology
pub_type: 杂志文章
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更新日期:2020-05-07 00:00:00
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更新日期:2019-03-18 00:00:00
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更新日期:2013-06-03 00:00:00