Abstract:
:We previously reported that a novel motor protein belonging to the kinesin-12 family, NtKRP, displays critical roles in regulating embryo and seed size establishment. However, it remains unknown exactly how NtKRP contributes to this developmental process. Here, we report that a 60S ribosomal protein NtRPL17 directly interacts with NtKRP. The phenotypes of NtRPL17 RNAi lines show notable embryo and seed size reduction. Structural observations of the NtRPL17-silenced embryos/seeds reveal that the embryo size reduction is due to a decrease in cell number. In these embryos, cell division cycle progression is delayed at the G2/M transition. These phenotypes are similar to that in NtKRP-silenced embryos/seeds, indicating that NtKRP and NtRPL17 function as partners in the same regulatory pathway during seed development and specifically regulate cell cycle progression to control embryo/seed size. This work reveals that NtRPL17, as a widely distributed ribosomal protein, plays a critical role in seed development and provides a new clue in the regulation of seed size. Confirmation of the interaction between NtKRP and NtRPL17 and their co-function in the control of the cell cycle also suggests that the mechanism might be conserved in both plants and animals.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Tian S,Wu J,Liu Y,Huang X,Li F,Wang Z,Sun MXdoi
10.1093/jxb/erx361subject
Has Abstractpub_date
2017-11-28 00:00:00pages
5553-5564issue
20eissn
0022-0957issn
1460-2431pii
4554379journal_volume
68pub_type
杂志文章abstract::Sorghum (Sorghum bicolor L. Moench) is a C4 species sensitive to the cold spring conditions that occur at northern latitudes, especially when coupled with excessive light, and that greatly affect the photosynthetic rate. The objective of this study was to discover genes/genomic regions that control the capacity to cop...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erx276
更新日期:2017-07-20 00:00:00
abstract::Six MaMADS-box genes have been cloned from the banana fruit cultivar Grand Nain. The similarity of these genes to tomato LeRIN is low and neither MaMADS2 nor MaMADS1 complement the tomato rin mutation. Nevertheless, the expression patterns, specifically in fruit and the induction during ripening and in response to eth...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erq017
更新日期:2010-03-01 00:00:00
abstract::Rotundone was initially identified as a grape-derived compound responsible for the peppery aroma of Shiraz wine varieties. It has subsequently been found in black and white pepper and several other spices. Because of its potent aroma, the molecular basis for rotundone formation is of particular relevance to grape and ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv491
更新日期:2016-02-01 00:00:00
abstract::Temporal compartmentation of carboxylation processes is a defining feature of crassulacean acid metabolism and involves circadian control of key metabolic and transport steps that regulate the supply and demand for carbon over a 24h cycle. Recent insights on the molecular workings of the circadian clock and its connec...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru185
更新日期:2014-07-01 00:00:00
abstract::Small non-coding RNAs are key post-transcriptional and transcriptional regulators of plant gene expression in angiosperm sporophytes. In recent years, gametophytic small RNAs have also been investigated, predominantly in Arabidopsis male gametophytes, revealing features in common with the sporophyte as well as some su...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erq399
更新日期:2011-03-01 00:00:00
abstract::To elucidate the phytohormonal basis of the feedback regulation of leaf senescence induced by potassium (K) deficiency in cotton (Gossypium hirsutum L.), two cultivars contrasting in sensitivity to K deficiency were self- and reciprocally grafted hypocotyl-to-hypocotyl, using standard grafting (one scion grafted onto ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers238
更新日期:2012-10-01 00:00:00
abstract::In grafted plants, rootstocks assure the mineral nutrition of the scion and modify its development. In this study, we show that two grapevine rootstock genotypes have different shoot branching architectures when cultivated as cuttings and that this trait is transmitted to the scion when grafted. Shoot branching plasti...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ery206
更新日期:2018-07-18 00:00:00
abstract::The production of bioenergy from grasses has been developing quickly during the last decade, with Miscanthus being among the most important choices for production of bioethanol. However, one of the key barriers to producing bioethanol is the lack of information about cell wall structure. Cell walls are thought to disp...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv183
更新日期:2015-07-01 00:00:00
abstract::The fact that silicon application alleviates water deficit stress has been widely reported, but the underlying mechanism remains unclear. Here the effects of silicon on water uptake and transport of sorghum seedlings (Sorghum bicolor L.) growing under polyethylene glycol-simulated osmotic stress in hydroponic culture ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru220
更新日期:2014-09-01 00:00:00
abstract::Mesophyll conductance is thought to be an important photosynthetic limitation in gymnosperms, but they currently constitute the most understudied plant group in regard to the extent to which photosynthesis and intrinsic water use efficiency are limited by mesophyll conductance. A comprehensive analysis of leaf gas exc...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erx045
更新日期:2017-03-01 00:00:00
abstract::Drought events are a major challenge for many horticultural crops, including grapes, which are often cultivated in dry and warm climates. It is not understood how the cuticle contributes to the grape berry response to water deficit (WD); furthermore, the cuticular waxes and the related biosynthetic pathways are poorly...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa046
更新日期:2020-05-30 00:00:00
abstract::Apoplastic transport barriers in the roots of rice (Oryza sativa L. cv. IR64) and corn (Zea mays L. cv. Helix) were isolated enzymatically. Following chemical degradation (monomerization, derivatization), the amounts of aliphatic and aromatic suberin monomers were analysed quantitatively by gas chromatography and mass...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eri144
更新日期:2005-05-01 00:00:00
abstract::A jasmonate-inducible lectin called Nicotiana tabacum agglutinin or NICTABA was found in tobacco (Nicotiana tabacum cv Samsun) leaves. Since NICTABA expression is also induced after insect herbivory, a role in the defence response of tobacco was suggested. In this report, a detailed analysis was made of the entomotoxi...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp365
更新日期:2010-02-01 00:00:00
abstract::Tomato is a model and economically important crop plant with little information available about gene expression in roots. Currently, there have only been a few studies that examine hormonal responses in tomato roots and none at a genome-wide level. This study examined the transcriptome atlas of tomato root regions (ro...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers365
更新日期:2013-01-01 00:00:00
abstract::C4 photosynthesis is a complex specialization that enhances carbon gain in hot, often arid habitats where photorespiration rates can be high. Certain features unique to C4 photosynthesis may reduce the potential for phenotypic plasticity and photosynthetic acclimation to environmental change relative to what is possib...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erj040
更新日期:2006-01-01 00:00:00
abstract::Root phenotyping provides trait information for plant breeding. A shortcoming of high-throughput root phenotyping is the limitation to seedling plants and failure to make inferences on mature root systems. We suggest root system architecture (RSA) models to predict mature root traits and overcome the inference problem...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erw494
更新日期:2017-02-01 00:00:00
abstract::Vivipary, the germination of seeds before they are shed from the parent plant, is a rare event in angiosperms involving complex ecophysiological processes. Pseudovivipary and cryptovivipary occur in approximately 30 (2%) species of the cactus family. A remarkable case of vivipary in Epiphyllum phyllanthus is described...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm232
更新日期:2007-01-01 00:00:00
abstract::Here the isolation and characterization of CitAMT1 cDNA from citrange Troyer (Citrus sinensis L. OsbeckxPoncirus trifoliata Blanco) is reported, suggesting that this belongs to the AMT gene family, which is involved in the high-affinity transport system (HATS). Results show that in Citrus plants, the HATS is much more...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm135
更新日期:2007-01-01 00:00:00
abstract::Alpha-dioxygenase (alpha-DOX) enzymes catalyse the oxygenation of fatty acids to yield a newly identified group of oxylipins that play a role in protecting tissues from oxidative damage and cell death. In tomato (Lycopersicon esculentum Mill.) alpha-DOX was identified as salt-regulated by differential display of mRNA,...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eri038
更新日期:2005-02-01 00:00:00
abstract::The structure of arabinan and galactan domains in association with cellulose microfibrils was investigated using enzymatic and alkali degradation procedures. Sugar beet and potato cell wall residues (called 'natural' composites), rich in pectic neutral sugar side chains and cellulose, as well as 'artificial' composite...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm037
更新日期:2007-01-01 00:00:00
abstract::Chloroplasts perform many essential metabolic functions and their proper development is critically important in embryogenesis. However, little is known about how chloroplasts function in embryogenesis and more relevant components need to be characterized. In this study, we show that Arabidopsis Ribonuclease J (RNase J...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv010
更新日期:2015-04-01 00:00:00
abstract::Dionaea is a highly specialized carnivorous plant species with a unique mechanism for insect capture. The leaf is converted into an osmotically driven trap that closes when an insect triggers sensory trichomes. This study investigates the significance of insect capture for growth of Dionaea at different successional s...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/52.358.1041
更新日期:2001-05-01 00:00:00
abstract::Growing potato tubers or freshly harvested mature tubers have a dormant apical bud. Normally, this dormancy is spontaneously broken after a period of maturation of the tuber, resulting in the growth of a new sprout. Here it is shown that in in vitro-cultured growing and maturing tubers, ethanol can rapidly break this ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eri245
更新日期:2005-09-01 00:00:00
abstract::In Arabidopsis thaliana, Argonaute1 (AGO1) interacts with miR168 to modulate the small RNA regulatory pathway. However, the underlying mechanism of regulation and relationship between AGO1 and miR168 is poorly understood in the cash crop Solanum lycopersicum (tomato). We previously found that SlAGO1A and SlAGO1B were ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru387
更新日期:2014-12-01 00:00:00
abstract::Drought stress limits root growth and inhibits cytokinin (CK) production. Increases in CK production through overexpression of isopentenyltransferase (ipt) alleviate drought damages to promote root growth. The objective of this study was to investigate whether CK-regulated root growth was involved in the alteration of...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erw019
更新日期:2016-03-01 00:00:00
abstract::Plants have evolved complex mechanisms to balance the efficient use of absorbed light energy in photosynthesis with the capacity to use that energy in assimilation, so avoiding potential damage from excess light. This is particularly important under natural light, which can vary according to weather, solar movement an...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv055
更新日期:2015-05-01 00:00:00
abstract::Ureides dramatically accumulate in shoots of N(2)-fixing soybean (Glycine max L. Merr.) under water deficit and this accumulation is higher in cultivars that have N(2) fixation that is sensitive to water deficit. One possible explanation is that ureide accumulation is associated with a feedback inhibition of nitrogena...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:
更新日期:2000-08-01 00:00:00
abstract::The aim of this work was to investigate the importance of cytosolic phosphorylating glyceraldehyde 3-phosphate dehydrogenase (GAPC) in potato carbohydrate metabolism. For this purpose, the cytosolic isoform of phosphorylating GAPC was cloned and used for an antisense approach to generate transgenic potato plants that ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erj207
更新日期:2006-01-01 00:00:00
abstract::Pelargonium graveolens is a wild predecessor to rose-scented geranium hybrids prized for their essential oils used as fragrances and flavorings. However, little is known about their biosynthesis. Here we present metabolic evidence that at least two distinct monoterpene biosynthetic pathways contribute to their volatil...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erz397
更新日期:2020-01-01 00:00:00
abstract::Leaf senescence and associated changes in redox components were monitored in commercial pea (Pisum sativum L. cv. Phoenix) plants grown under different nitrogen regimes for 12 weeks until both nodules and leaves had fully senesced. One group of plants was inoculated with Rhizobium leguminosarum and grown with nutrient...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erl012
更新日期:2006-01-01 00:00:00