Abstract：
:The complete elimination of unwanted cells during development is a repeated theme in both multicellular animals and in plants. In plants, such events have been extensively studied and reviewed in terms of their molecular regulation, of marker genes and proteins expressed, and in terms of cellular changes associated with their progression. This review will take a slightly different view of developmental cell elimination and will concentrate specifically on the numerous elimination events that occur during ovule and seed development (here grouped together as seed development). It asks why this cell elimination occurs in specific seed tissues, in order to understand something about the commonalities underlying how seemingly disparate events are triggered and regulated. Finally, by placing the seed in its broader evolutionary context, the question of why cell elimination may have emerged as such a key component of the seed developmental toolbox will be considered.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Ingram GCdoi
10.1093/jxb/erw364subject
Has Abstractpub_date
2017-02-01 00:00:00pages
785-796issue
4eissn
0022-0957issn
1460-2431pii
erw364journal_volume
68pub_type
杂志文章abstract：:Our previous genetic analysis of a tetraploid wild wheat species, Aegilops peregrina, predicted that a single gene per haploid genome, Bgc-1, controls B-type starch granule content in the grain. To test whether bread wheat (Triticum aestivum L.) has orthologous Bgc-1 loci, we screened a population of γ-irradiated brea...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erx349
更新日期：2017-11-28 00:00:00
abstract：:Rapid alkalinization factor (RALF) is a peptide signal that plays a basic role in cell biology and most likely regulates cell expansion. In this study, transgenic Arabidopsis thaliana lines with high and low levels of AtRALF1 transcripts were used to investigate this peptide's mechanism of action. Overexpression of th...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eru099
更新日期：2014-05-01 00:00:00
abstract：:Sugars regulate the expression of many genes at the transcriptional level. In Arabidopsis thaliana, sugars induce or repress the expression of >1800 genes, including the STP1 (SUGAR TRANSPORTER PROTEIN 1) gene, which encodes an H(+)/monosaccharide cotransporter. STP1 transcript levels decrease more rapidly after the a...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eru394
更新日期：2015-01-01 00:00:00
abstract：:Mango is characterized by high tocopherol and carotenoid content during ripening. From a cDNA screen of differentially expressing genes during mango ripening, a full-length p-hydroxyphenylpyruvate dioxygenase (MiHPPD) gene homologue was isolated that encodes a key enzyme in the biosynthesis of tocopherols. The gene en...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/err006
更新日期：2011-06-01 00:00:00
abstract：:Sexual reproduction in higher plants uses pollination, involving interactions between pollen and pistil. Self-incompatibility (SI) prevents self-fertilization, providing an important mechanism to promote outbreeding. SI is controlled by the S-locus; discrimination occurs between incompatible pollen, which is rejected,...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erm195
更新日期：2008-01-01 00:00:00
abstract：:We study in situ the mechanics and growth of a leaf. Young Nicotiana tabacum leaves respond to applied mechanical stress by altering both their mechanical properties and the characteristics of their growth. We observed two opposite behaviours, each with its own typical magnitude and timescale. On timescales of the ord...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erw316
更新日期：2016-10-01 00:00:00
abstract：:Many legumes have the capacity to enter into a symbiotic association with soil bacteria generically called 'rhizobia' that results in the formation of new lateral organs on roots called nodules within which the rhizobia fix atmospheric nitrogen (N). Up to 200 million tonnes of N per annum is fixed by this association....
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erv357
更新日期：2015-08-01 00:00:00
abstract：:Shoot branching is the process by which axillary buds, located on the axil of a leaf, develop and form new flowers or branches. The process by which a dormant bud activates and becomes an actively growing branch is complex and very finely tuned. Bud outgrowth is regulated by the interaction of environmental signals an...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erm134
更新日期：2008-01-01 00:00:00
abstract：:The typical isohydric plant response to low relative humidity involves stomatal closure, followed by long-term responses like adjustment of shoot-to-root ratios. Little information is available on the early responses of the root system to exposure of shoots to low humidity, nor is it clear to what extent responses of ...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erm220
更新日期：2007-01-01 00:00:00
abstract：:A maize mutant defective in the synthesis of phytic acid during seed maturation was used as a tool to study the consequences of the lack of this important reserve substance on seed survival. Data on germinability, free iron level, free radical relative abundance, protein carbonylation level, damage to DNA, degree of l...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ern345
更新日期：2009-01-01 00:00:00
abstract：:Although the mechanisms of nodule N(2) fixation in legumes are now well documented, some uncertainty remains on the metabolic consequences of water deficit. In most cases, little consideration is given to other organs and, therefore, the coordinated changes in metabolism in leaves, roots, and nodules are not well know...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ers367
更新日期：2013-02-01 00:00:00
abstract：:Polyamines are considered to participate in various processes of plant development. In this study, the possible implication of putrescine catabolism by the copper-containing amine oxidases (CuAOs, EC 1.4.3.6) in the development of roots and hypocotyls was examined. For this purpose, two cDNA clones of Glycine max (L.)...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erj009
更新日期：2006-01-01 00:00:00
abstract：:Production per amount of water used (water use efficiency, WUE) is closely correlated with drought tolerance. Although stomatal aperture can regulate WUE, the underlying molecular mechanisms are still unclear. Previous reports revealed that stomatal closure was inhibited in the calcium-sensing receptor (CAS) antisense...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ert362
更新日期：2014-01-01 00:00:00
abstract：:Sugarcane (Saccharum officinarum) is a globally cultivated cash crop whose yield is negatively affected by soil salinity. In this study, we investigated the molecular basis of inducible salt tolerance in M4209, a sugarcane mutant line generated through radiation-induced mutagenesis. Under salt-contaminated field condi...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eraa339
更新日期：2020-10-07 00:00:00
abstract：:Contrary to the increasing amount of knowledge regarding the functional roles of glycine-rich RNA-binding proteins (GRPs) in Arabidopsis thaliana in stress responses, the physiological functions of GRPs in rice (Oryza sativa) currently remain largely unknown. In this study, the functional roles of six OsGRPs from rice...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erq058
更新日期：2010-05-01 00:00:00
abstract：:Root gravitropism is affected by many environmental stresses, including salinity, drought, and nutrient deficiency. One significant environmental stress, excess ammonium (NH(4)(+)), is well documented to inhibit root elongation and lateral root formation, yet little is known about its effects on the direction of root ...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ers068
更新日期：2012-06-01 00:00:00
abstract：:In peach (Prunus persica L. Batsch.) the degradation of the pectic compounds of the cell wall is considered to be the principal component responsible for fruit softening. Many genes encoding enzymes acting on the different polymers of the pectic matrix have been shown to be highly expressed during the late phases of s...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erj043
更新日期：2006-01-01 00:00:00
abstract：:Natural rubber (polyisoprene) from the rubber tree Hevea brasiliensis is synthesized by specialized cells called laticifers. It is not clear how rubber particles arise, although one hypothesis is that they derive from the endoplasmic reticulum (ER) membrane. Here we cloned the genes encoding four key proteins found in...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erx331
更新日期：2017-11-02 00:00:00
abstract：:Plants co-evolved with an enormous variety of microbial pathogens and insect herbivores under daily and seasonal variations in abiotic environmental conditions. Hence, plant cells display a high capacity to respond to diverse stresses through a flexible and finely balanced response network that involves components suc...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erw079
更新日期：2016-03-01 00:00:00
abstract：:Somatic embryogenesis in Arabidopsis is achieved by culturing bending-cotyledon embryos on a 2,4-D-containing induction medium for 14 d followed by a transfer on to a hormone-free development medium. Several genes orthologous to Arabidopsis SHOOTMERISTEMLESS (STM), CLAVATA 1 (CLV1), and ZWILLE (ZLL) were isolated from...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erq222
更新日期：2010-09-01 00:00:00
abstract：:While the general effect of CO2 enrichment on photosynthesis, stomatal conductance, N content, and yield has been documented, there is still some uncertainty as to whether there are interactive effects between CO2 enrichment and other factors, such as temperature, geographical location, water availability, and cultiva...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eraa330
更新日期：2020-10-07 00:00:00
abstract：:Plants have fundamental dependences on nitrogen and sulfur and frequently have to cope with chronic limitations when their supply is sub-optimal. This study aimed at characterizing the metabolomic, proteomic, and transcriptomic changes occurring in Arabidopsis leaves under chronic nitrate (Low-N) and chronic sulfate (...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eraa337
更新日期：2020-10-22 00:00:00
abstract：:Plants have evolved elaborate mechanisms for sensing and responding to sub-optimal environmental conditions. Abiotic stresses caused by these conditions trigger a wide range of local and long-distance signals which must be co-ordinated and integrated into whole-plant processes, such as development, in order for the pl...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erv172
更新日期：2015-08-01 00:00:00
abstract：:Leaves and callus of Kalanchoë daigremontiana and Taxus brevifolia were used to investigate nitric oxide-induced apoptosis in plant cells. The effect of nitric oxide (NO) was studied by using a NO donor, sodium nitroprusside (SNP), a nitric oxide-synthase (NOS) inhibitor, N:(G)-monomethyl-L-arginine (NMMA), and centri...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jexbot/51.347.1027
更新日期：2000-06-01 00:00:00
abstract：:Emergent aquatic macrophytes growing in waterlogged anaerobic sediments overlain by deep water require particularly efficient ventilating systems. In Phragmites australis (Cav.) Trin. ex Steud, pressurized gas flows, generated by humidity-induced diffusion of air into leaf sheaths, enhance oxygen transport to below-gr...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erm017
更新日期：2007-01-01 00:00:00
abstract：:The effects of increasing light and of a heterologous bHLH transcription factor on the accumulation of condensed tannins (CT) were investigated in leaves of Lotus corniculatus, a model legume species which accumulates these secondary metabolites in leaves as well as reproductive tissues. Light and expression of the tr...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eri101
更新日期：2005-04-01 00:00:00
abstract：:Magnesium-chelatase H subunit [CHLH/putative abscisic acid (ABA) receptor ABAR] positively regulates guard cell signalling in response to ABA, but the molecular mechanism remains largely unknown. A member of the sucrose nonfermenting 1 (SNF1)-related protein kinase 2 family, SnRK2.6/open stomata 1 (OST1)/SRK2E, which ...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erv341
更新日期：2015-10-01 00:00:00
abstract：:Many plant species and/or genotypes are highly recalcitrant to Agrobacterium-mediated genetic transformation, and yet little is known about this phenomenon. Using several Arabidopsis genotypes/ecotypes, the results of this study indicated that phytohormone pretreatment could overcome this recalcitrance by increasing t...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jexbot/51.353.1961
更新日期：2000-12-01 00:00:00
abstract：:An increased concentration of cytosolic Ca2+ is an early response of plant cells to heat shock. Arabidopsis cyclic nucleotide-gated ion channel 6 (CNGC6) mediates heat-induced Ca2+ influx and is activated by cAMP. However, it remains unclear how the Ca2+ conductivity of CNGC6 is negatively regulated under the elevated...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erz445
更新日期：2020-01-01 00:00:00
abstract：:RETINOBLASTOMA (RB) is a tumour suppressor gene originally discovered in patients that develop eye tumours. The pRb protein is now well established as a key cell-cycle regulator which suppresses G1-S transition via interaction with E2F-DP complexes. pRb function is also required for a wide range of biological processe...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/eru069
更新日期：2014-06-01 00:00:00
