Abstract:
:Successful sexual reproduction often relies on the ability of plants to recognize self- or genetically-related pollen and prevent pollen tube growth soon after germination in order to avoid self-fertilization. Angiosperms have developed different reproductive barriers, one of the most extended being self-incompatibility (SI). With SI, pistils are able to reject self or genetically-related pollen thus promoting genetic variability. There are basically two distinct systems of SI: gametophytic (GSI) and sporophytic (SSI) based on their different molecular and genetic control mechanisms. In both types of SI, programmed cell death (PCD) has been found to play an important role in the rejection of self-incompatible pollen. Although reactive oxygen species (ROS) were initially recognized as toxic metabolic products, in recent years, a new role for ROS has become apparent: the control and regulation of biological processes such as growth, development, response to biotic and abiotic environmental stimuli, and PCD. Together with ROS, nitric oxide (NO) has become recognized as a key regulator of PCD. PCD is an important mechanism for the controlled elimination of targeted cells in both animals and plants. The major focus of this review is to discuss how ROS and NO control male-female cross-talk during fertilization in order to trigger PCD in self-incompatible pollen, providing a highly effective way to prevent self-fertilization.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Serrano I,Romero-Puertas MC,Sandalio LM,Olmedilla Adoi
10.1093/jxb/erv083subject
Has Abstractpub_date
2015-05-01 00:00:00pages
2869-76issue
10eissn
0022-0957issn
1460-2431pii
erv083journal_volume
66pub_type
杂志文章,评审abstract::Modifications to the cell wall of developing and ripening tomato fruit are mediated by cell wall-degrading enzymes, including a beta-d-xylosidase or alpha-l-arabinofuranosidase, which participate in the breakdown of xylans and/or arabinoxylans. The activity of both enzymes was highest during early fruit growth, before...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erg291
更新日期:2003-12-01 00:00:00
abstract::SU(VAR)3-9 proteins are key regulators of heterochromatin structure and function in plants, mammals, Drosophila, and yeast. In contrast to animals and fungi, plants contain numerous Su(var)3-9 homologues (SUVH), the members of which form a discrete subfamily. The SU(VAR)3-9 and SUVH proteins associate with heterochrom...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erl093
更新日期:2006-01-01 00:00:00
abstract::In Arabidopsis, inflorescence stem formation is a critical process in phase transition from the vegetative to the reproductive state. Although inflorescence stem development has been reported to depend on the expression of a variety of genes during floral induction and repression, little is known about the molecular m...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/err168
更新日期:2011-08-01 00:00:00
abstract::Leaf senescence is a programmed developmental process governed by various endogenous and exogenous factors, such as the plant developmental stage, leaf age, phytohormone levels, darkness, and exposure to stresses. It was found that, in addition to its well-documented role in the enhancement of plant frost tolerance, o...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp300
更新日期:2010-01-01 00:00:00
abstract::Next-generation sequencing enables the study of species without a sequenced genome at the 'omics' level. Custom transcriptome databases are generated and global expression profiles can be compared. However, the assembly of transcriptome sequence reads into contigs remains a daunting task. In this study, five different...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/err029
更新日期:2011-05-01 00:00:00
abstract::To understand the mechanisms of ion homeostasis in salt-tolerant and salt-sensitive plants, cDNAs for a high-affinity K(+) transporter PhaHKT1 were isolated from salt-sensitive (Utsunomiya) and salt-tolerant (Nanpi, Enchi) reed plants. A cDNA of Utsunomiya (PhaHKT1-u) contained two insertions in the region correspondi...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm306
更新日期:2007-01-01 00:00:00
abstract::Flavonoids are plant pigments that provide health benefits for human and animal consumers. Understanding why domesticated crops have altered pigmentation patterns and unraveling the molecular/genetic mechanisms that underlie this will facilitate the breeding of new (healthier) varieties. We present an overview of chan...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erz141
更新日期:2019-08-07 00:00:00
abstract::The interface between the atmosphere and leaves and fruits is formed by the lipophilic plant cuticle, which seals the outer epidermal cell walls, thus significantly reducing water loss and uptake of dissolved solutes deposited on the cuticle surface. Different experimental and theoretical approaches for quantifying ba...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erx282
更新日期:2017-11-09 00:00:00
abstract::ω-3 fatty acid desaturases (FADs) are thought to contribute to plant stress tolerance mainly through linolenic acid (C18:3)-induced membrane stabilization, but a comprehensive analysis of their roles in stress adaptation is lacking. Here, we isolated a microsomal ω-3 FAD gene (CbFAD3) from a cryophyte (Chorispora bung...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ery050
更新日期:2018-04-09 00:00:00
abstract::Reactive oxygen species (ROS) are plant metabolic and signaling molecules involved in responses to various external stresses, but the existence of ROS receptors and how plants respond to ROS remain largely unknown. Here we report that the plasma membrane-localized phospholipase D δ (PLDδ) protein is crucial for sensin...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa359
更新日期:2020-10-22 00:00:00
abstract::Virus-induced gene silencing (VIGS) is a useful tool for functional characterization of genes in plants. Unfortunately, the efficiency of infection by Tobacco rattle virus (TRV) is relatively low for some non-Solanaceae plants, which are economically important, such as rose (Rosa sp.). Here, to generate an easy tracea...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ert381
更新日期:2014-01-01 00:00:00
abstract::The molecular mechanisms of abscisic acid (ABA) signalling have been studied for many years; however, how mitochondria-localized proteins play roles in ABA signalling remains unclear. Here an Arabidopsis mitochondria-localized protein RRL (RETARDED ROOT GROWTH-LIKE) was shown to function in ABA signalling. A previous ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erv356
更新日期:2015-10-01 00:00:00
abstract::Phosphorus (P) deficiency and aluminum (Al) toxicity often coexist and limit plant growth on acid soils. It has been well documented that both P deficiency and Al toxicity alter root growth, including inhibition of primary roots and promotion of lateral roots. This suggests that plants adapt to both stresses through a...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erw188
更新日期:2016-06-01 00:00:00
abstract::A gene encoding a RING zinc finger ankyrin repeat protein (MjXB3), a putative E3 ubiquitin ligase, is highly expressed in petals of senescing four o'clock (Mirabilis jalapa) flowers, increasing >40,000-fold during the onset of visible senescence. The gene has homologues in many other species, and the Petunia homologue...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm212
更新日期:2007-01-01 00:00:00
abstract::Recent work has made progress in relating the size of stomata to stomatal functioning and, in particular, the speed of opening and closing and its implications. Calculations of the influence of stomatal size on the potential rate of osmolarity increase, assuming size-independent ion influx rate per unit area of guard ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru032
更新日期:2014-04-01 00:00:00
abstract::Our understanding of within-species annual plant adaptation to rainfall gradients is fragmented. Broad-scale ecological applications of Grime's C-S-R triangle are often superficial, while detailed drought physiology tends to be narrow, focusing on elite cultivars. The former lack the detail to explain how plants respo...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru006
更新日期:2014-11-01 00:00:00
abstract::Regulated cell death plays key roles during essential processes along the plant life cycle. It takes part of specific developmental programs and maintains the organism homeostasis in response to unfavorable environments. Ferroptosis is a recently discovered iron-dependent cell death pathway characterized by the accumu...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eraa425
更新日期:2020-09-11 00:00:00
abstract::Heat-shock protein 90 (HSP90) is a highly conserved molecular chaperone that is involved in modulating a multitude of cellular processes under both physiological and stress conditions. In Arabidopsis, there are seven HSP90 isoforms (HSP90.1-HSP90.7) that are localized in the cytoplasm/nucleus, mitochondrion, chloropla...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru403
更新日期:2015-01-01 00:00:00
abstract::Bulbil formation in Agave tequilana was analysed with the objective of understanding this phenomenon at the molecular and cellular levels. Bulbils formed 14-45 d after induction and were associated with rearrangements in tissue structure and accelerated cell multiplication. Changes at the cellular level during bulbil ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erq215
更新日期:2010-09-01 00:00:00
abstract::Increasing leaf transpiration efficiency (TE) may provide leads for growing rice like dryland cereals such as wheat (Triticum aestivum). To explore avenues for improving TE in rice, variations in stomatal conductance (gs) and mesophyll conductance (gm) and their anatomical determinants were evaluated in two cultivars ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erx314
更新日期:2017-11-02 00:00:00
abstract::Soybean (Glycine max L. Merr.) plants exposed to 10 mM KNO(3) for a 4 d period were used to test the correlation between nitrogenase activity, gene expression and sucrose metabolism. Nitrate caused the down-regulation of sucrose synthase (SS) transcripts within 1 d, although a decline in nodule SS activity and an incr...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jexbot/53.368.423
更新日期:2002-03-01 00:00:00
abstract::Soybean cyst nematode (SCN) is currently the most devastating pathogen of soybean. SCN penetrates the root and migrates toward the central vascular bundle where it establishes a complex multinucleated feeding structure that provides plant-derived nutrients to support the development and growth of the nematode. To iden...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erm211
更新日期:2007-01-01 00:00:00
abstract::Members of the Orchidaceae, one of the largest families of flowering plants, evolved the crassulacean acid metabolism (CAM) photosynthesis strategy. It is thought that CAM triggers adaptive radiation into new niche spaces, yet very little is known about its origin and diversification on different continents. Here, we ...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erz461
更新日期:2019-11-29 00:00:00
abstract::Tobacco plants were transformed by leaf disc regeneration with the VvHT1 (Vitis vinifera hexose transporter 1) cDNA under the control of the constitutive CaMV 35S promoter in a sense or antisense orientation. Among the 20 sense plants and 10 antisense plants obtained, two sense plants showed a mutant phenotype when gr...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erg119
更新日期:2003-04-01 00:00:00
abstract::Grape hyacinth (Muscari) is an important ornamental bulbous plant with an extraordinary blue colour. Muscari armeniacum, whose flowers can be naturally white, provides an opportunity to unravel the complex metabolic networks underlying certain biochemical traits, especially colour. A blue flower cDNA library of M. arm...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru168
更新日期:2014-07-01 00:00:00
abstract::With the aim of increasing the cysteine level in rice (Oryza sativa L.) and thus improving its nutritional quality, transgenic rice plants were generated expressing an Escherichia coli serine acetyltransferase isoform (EcSAT), the enzyme synthesizing O-acetylserine, the precursor of cysteine. The gene was fused to the...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/ers253
更新日期:2012-10-01 00:00:00
abstract::All members of the sulphotransferase (SOT, EC 2.8.2.-) protein family use 3'-phosphoadenosine 5'-phosphosulphate (PAPS) as the sulphuryl donor and transfer the sulphonate group to an appropriate hydroxyl group of several classes of substrates. These enzymes have highly conserved domains and can be found in eubacteria ...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/erh183
更新日期:2004-08-01 00:00:00
abstract::The rootless, aquatic Utricularia species belong to the largest and most cosmopolitan carnivorous plant genus. Populations of Utricularia plants are an important component of many standing, nutrient-poor, and humic waters. Carbon (C) allocation is an aspect of Utricularia's ecophysiology that has not been studied prev...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/erp286
更新日期:2010-01-01 00:00:00
abstract::During the summer, evaporative demand at midday often exceeds the transport capacity of most desert plants. However, date palms maintain their ecological dominance with sustained and uniquely high rates of transpiration. This high rate of flow cannot be attributed to soil water supply alone. In order to quantify intra...
journal_title:Journal of experimental botany
pub_type: 杂志文章
doi:10.1093/jxb/eru421
更新日期:2015-01-01 00:00:00
abstract::Flower and inflorescence reversion involve a switch from floral development back to vegetative development, thus rendering flowering a phase in an ongoing growth pattern rather than a terminal act of the meristem. Although it can be considered an unusual event, reversion raises questions about the nature and function ...
journal_title:Journal of experimental botany
pub_type: 杂志文章,评审
doi:10.1093/jxb/eri254
更新日期:2005-10-01 00:00:00