Abstract：
:Expansin is a non-enzymatic protein which plays a pivotal role in cell wall loosening by inducing stress relaxation and extension in the plant cell wall. Previous studies on Arabidopsis, Petunia × hybrida, and tomato demonstrated that the suppression of expansin gene expression reduced plant growth but expansin overexpression does not necessarily promotes growth. In this study, both expansin gene suppression and overexpression in dark-grown transgenic Arabidopsis seedlings resulted in reduced hypocotyl length at late growth stages with a more pronounced effect for the overexpression. This defect in hypocotyl elongation raises questions about the molecular effect of expansin gene manipulation. RNA-seq analysis of the transcriptomic changes between day 3 and day 5 seedlings for both transgenic lines found numerous differentially expressed genes (DEGs) including transcription factors and hormone-related genes involved in different aspects of cell wall development. These DEGs imply that the observed hypocotyl growth retardation is a consequence of the concerted effect of regulatory factors and multiple cell-wall related genes, which are important for cell wall remodelling during rapid hypocotyl elongation. This is further supported by co-expression analysis through network-centric approach of differential network cluster analysis. This first transcriptome-wide study of expansin manipulation explains why the effect of expansin overexpression is greater than suppression and provides insights into the dynamic nature of molecular regulation during etiolation.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Ilias IA,Negishi K,Yasue K,Jomura N,Morohashi K,Baharum SN,Goh HHdoi
10.1007/s10265-018-1067-0subject
Has Abstractpub_date
2019-03-01 00:00:00pages
159-172issue
2eissn
0918-9440issn
1618-0860pii
10.1007/s10265-018-1067-0journal_volume
132pub_type
杂志文章abstract：:Lavoisiera campos-portoana Barreto (Melastomataceae) has two kinds of leaves, pubescent and glabrous, and branches may have one or both types of leaves at the same moment. The plant is endemic to high altitude rocky fields in Brazil where rainfall is very seasonal. We predicted that these two l...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-011-0416-z
更新日期：2012-01-01 00:00:00
abstract：:We isolated several mutants of Arabidopsis thaliana (L.) Heynh. that accumulated less anthocyanin in the plant tissues, but had seeds with a brown color similar to the wild-type. These mutants were allelic with the anthocyaninless1 (anl1) mutant that has been mapped at 15.0 cM of chromosome 5. We performed fine mappin...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-006-0067-7
更新日期：2007-05-01 00:00:00
abstract：:Various photoreceptors in plants are used to monitor important environmental light signals and regulate plant development. Despite their functional importance, recent studies have demonstrated that red/far-red absorbing phytochromes or blue/UV-A absorbing cryptochromes are involved in local adaptation within a species...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-010-0361-2
更新日期：2011-01-01 00:00:00
abstract：:Approximately one-fourth of Japan's native plant species are threatened with extinction. To conserve these species, it is critical to evaluate genetic diversity at species-level and population-level. Some factors, including population size and geographic distribution, are known to influence the population genetic dive...
journal_title：Journal of plant research
pub_type： 杂志文章,评审
doi：10.1007/s10265-003-0083-9
更新日期：2003-04-01 00:00:00
abstract：:A putative carbohydrate binding module (CBM) from strawberry (Fragaria × ananassa Duch.) expansin 2 (CBM-FaExp2) was cloned and the encoding protein was over-expressed in Escherichia coli and purified in order to evaluate its capacity to bind different cell wall polysaccharides "in vitro". The protein CBM-FaExp2 bound...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-012-0504-8
更新日期：2013-01-01 00:00:00
abstract：:gamma-Aminobutyrate transaminase (GABA-T) catalyzes the conversion of GABA to succinic semialdehyde. Using differential display PCR and cDNA library screening, a full-length GABA-T cDNA (OsGABA-T) was isolated from rice (Oryza sativa) leaves infected with an incompatible race of Magnaporthe grisea. The deduced amino a...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-006-0018-3
更新日期：2006-11-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-003-0121-7
更新日期：2004-02-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-015-0741-8
更新日期：2015-09-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-008-0191-7
更新日期：2009-01-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/BF02344552
更新日期：1996-12-01 00:00:00
abstract：:Petal flavonoid compositions of 39 tree peony cultivars from Xibei (northwest China) were investigated in order to study the chemotaxonomic relationship among tree peony species. Six anthocyanins, the 3- O-glucosides and 3,5-di- O-glucosides of three anthocyanidins-pelargonidin (Pg), cyanidin (Cy), and peonidin (Pn)-e...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-003-0130-6
更新日期：2004-02-01 00:00:00
abstract：:Structures and levels of anthocyanin-related compounds were analyzed during the development of marginal picotee petals in white-center and white-marginal cultivars of Petunia hybrida. In the white site of a white-center cultivar, higher concentrations of quercetin derivatives possessing 7-O-glucoside and/or 3'-O-gluco...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-007-0086-z
更新日期：2007-07-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-009-0279-8
更新日期：2010-05-01 00:00:00
abstract：:Legumes engage in symbiosis with nitrogen-fixing soil bacteria, collectively called rhizobia, under nitrogen-limited conditions. In many legumes, the root invasion of rhizobia is mediated by infection threads (ITs), tubular invaginations of the host cell wall and plasma membrane, developed from infection foci of defor...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-019-01122-w
更新日期：2019-09-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章,评审
doi：10.1007/s10265-017-0907-7
更新日期：2017-05-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-006-0056-x
更新日期：2007-03-01 00:00:00
abstract：:Helwingia, a shrub or small tree of four species distributed in East Asia, has been assigned to various families, mainly Cornaceae. However, molecular analyses show that the genus belongs to its own family Helwingiaceae which is sister to Phyllonomaceae (Phyllonoma only) in the order Aquifoliales. On the basis of H. j...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-014-0672-9
更新日期：2015-01-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0812-5
更新日期：2016-07-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0903-3
更新日期：2017-03-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
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更新日期：2009-11-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章,评审
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更新日期：2010-01-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
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更新日期：2015-09-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-007-0105-0
更新日期：2007-09-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-013-0557-3
更新日期：2013-09-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-007-0122-z
更新日期：2008-01-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0893-1
更新日期：2017-03-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-010-0346-1
更新日期：2011-01-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-003-0105-7
更新日期：2003-08-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
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更新日期：2002-12-01 00:00:00
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journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-010-0324-7
更新日期：2010-11-01 00:00:00
