Abstract：
:Parasitic plants form intimate contacts with host tissue in order to gain access to host solutes. There are a variety of cell types within the host which parasitic plants could access to extract solutes. Depending on the degree to which the parasite has embraced the parasitic lifestyle, the extent of solute flux and the pathways used to transfer solutes from host to parasite will vary. To date, a variety of experimental approaches argue for diversity in the mechanisms and the routes by which parasites accumulate host solutes. Contact between host and parasite ranges from direct lumen-to-lumen links between host and parasite xylem and continuity between the sieve elements of host and parasite, to the involvement of transfer cells between host and parasite. Progress has been slow since Solms-Laubach distinguished types of parasitic plants that fed from host phloem or xylem in 1867, but advances in clearly delineating the pathways that link host and parasite should now be possible using fluorescent proteins expressed and restricted to particular cell types of the host. This will initially necessitate using Arabidopsis, but should allow the types of connection, i.e. symplasmic or apoplasmic, to be determined and then the identification of parasite transporters responsible for solute flux.
journal_name
J Exp Botjournal_title
Journal of experimental botanyauthors
Hibberd JM,Jeschke WDdoi
10.1093/jexbot/52.363.2043keywords:
subject
Has Abstractpub_date
2001-10-01 00:00:00pages
2043-9issue
363eissn
0022-0957issn
1460-2431journal_volume
52pub_type
杂志文章,评审abstract：:Medicago truncatula is a model legume plant that interacts symbiotically with Sinorhizobium meliloti, the alfalfa symbiont. This process involves a molecular dialogue between the bacterium and the plant. Legume roots exude flavonoids that induce the expression of a set of rhizobial genes, the nod genes, which are esse...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erh261
更新日期：2004-12-01 00:00:00
abstract：:The phenomenal increase in agricultural yields that we have witnessed in the last century has slowed down as we approach the limits of selective breeding and optimization of cultivation techniques. To support the yield increase required to feed an ever-growing population, we will have to identify new ways to boost the...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erz029
更新日期：2019-03-11 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：:Wounding of plants leads to endogenous rise of jasmonic acid (JA) accompanied with the expression of a distinct set of genes. Among them are those coding for the allene oxide cyclase (AOC) that catalyses a regulatory step in JA biosynthesis, and for 1-deoxy-D-xylulose 5-phosphate synthase 2 (DXS2), an enzyme involved ...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ern145
更新日期：2008-01-01 00:00:00
abstract：:The endomembrane system offers many potential points where plant mating can be effectively controlled. This results from two basic features of angiosperm reproduction: the requirement for pollen tubes to pass through sporophytic tissues to gain access to ovules and the physiology of pollen tube growth that provides it...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erq065
更新日期：2010-04-01 00:00:00
abstract：:L-ascorbate (the reduced form of vitamin C) participates in diverse biological processes including pathogen defence mechanisms, and the modulation of plant growth and morphology, and also acts as an enzyme cofactor and redox status indicator. One of its chief biological functions is as an antioxidant. L-ascorbate inta...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ern322
更新日期：2009-01-01 00:00:00
abstract：:Despite impressive success in molecular physiological understanding of photosynthesis, and preliminary evidence on its potential for quantum shifts in agricultural productivity, the question remains of whether increased photosynthesis, without parallel fine-tuning of the associated processes, is enough. There is a dis...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eraa087
更新日期：2020-04-06 00:00:00
abstract：:Auxin is an essential regulator of plant growth and development, and auxin signaling components are conserved among land plants. Yet, a remarkable degree of natural variation in physiological and transcriptional auxin responses has been described among Arabidopsis thaliana accessions. As intraspecies comparisons offer...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erw457
更新日期：2017-01-01 00:00:00
abstract：:Nodal roots (NRs) constitute the prevalent root system of adult maize plants. NRs emerge from stem nodes located below or above ground, and little is known about their inducing factors. Here, it is shown that precocious development of NRs at the coleoptilar node (NRCNs) occurred in maize seedlings when: (i) dark grown...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/err186
更新日期：2011-08-01 00:00:00
abstract：:In a non-model staple crop like wheat (Triticum aestivumI L.), functional validation of potential drought stress responsive genes identified in Arabidopsis could provide gene targets for breeding. Virus-induced gene silencing (VIGS) of genes of interest can overcome the inherent problems of polyploidy and limited tran...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ert003
更新日期：2013-03-01 00:00:00
abstract：:Photorespiration is an essential high flux metabolic pathway that is found in all oxygen-producing photosynthetic organisms. It is often viewed as a closed metabolic repair pathway that serves to detoxify 2-phosphoglycolic acid and to recycle carbon to fuel the Calvin-Benson cycle. However, this view is too simplistic...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erw145
更新日期：2016-05-01 00:00:00
abstract：:Citric acid is the predominant organic acid of citrus fruit. Degradation of citric acid occurs during fruit development, influencing fruit acidity. Associations of CitAco3 transcripts and citric acid degradation have been reported for citrus fruit. Here, transient overexpression of CitAco3 significantly reduced the ci...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erx187
更新日期：2017-06-15 00:00:00
abstract：:Sugar beet is spring-sown for sugar production in most sugar beet-growing countries. It is grown as a vegetative crop and it accumulates yield (sugar) from very early in its growth cycle. As long as the sugar beet plants do not flower, the sugar accumulation period is indefinite and yield continues to increase. This p...
journal_title：Journal of experimental botany
pub_type： 杂志文章,评审
doi：10.1093/jxb/erp110
更新日期：2009-01-01 00:00:00
abstract：:The effect of heavy metals on the modification of plasma membrane H(+)-ATPase (EC 3.6.3.14) activity in cucumber roots was studied. In plants stressed for 2 h with 10 microM or 100 microM Cd, Cu or Ni the hydrolytic as well as the transporting activity of H(+)-ATPase in the plasma membranes of root cells was decreased...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ern219
更新日期：2008-01-01 00:00:00
abstract：:Sweet cherry is a non-climacteric fruit and its ripening is regulated by abscisic acid (ABA) during fruit development. In this study, four cDNAs (PacCYP707A1-4) encoding 8'-hydroxylase, a key enzyme in the oxidative catabolism of ABA, were identified in sweet cherry fruits using tobacco rattle virus-induced gene silen...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erv169
更新日期：2015-07-01 00:00:00
abstract：:Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) is the key enzyme in the fixation of CO(2) in the Calvin cycle of plants. Many genome projects have revealed that bacteria, including Bacillus subtilis, possess genes for proteins that are similar to the large subunit of RuBisCO. These RuBisCO homologues are ca...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ern104
更新日期：2008-01-01 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：:Although the role of the gynoecium in natural senescence of the carnation flower has long been suggested, it has remained a matter of dispute because petal senescence in the cut carnation flower was not delayed by the removal of gynoecium. In this study, the gynoecium was snapped off by hand, in contrast to previous i...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jexbot/51.353.2067
更新日期：2000-12-01 00:00:00
abstract：:Shipping of peaches to distant markets and storage require low temperature; however, cold storage affects fruit quality causing physiological disorders collectively termed 'chilling injury' (CI). In order to ameliorate CI, different strategies have been applied before cold storage; among them heat treatment (HT) has b...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erp267
更新日期：2009-01-01 00:00:00
abstract：:Manganese (Mn) is an essential micronutrient for plant growth but is often toxic in acid or waterlogged soils. Using cowpea (Vigna unguiculata L. Walp.) grown with 0.05-1500 μM Mn in solution, two short-term (48 h) solution culture experiments examined if the effects of cations (Ca, Mg, Na, Al, or H) on Mn nutrition a...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/err097
更新日期：2011-07-01 00:00:00
abstract：:The effect of the complex relationship between ethylene and abscisic acid (ABA) on flower development and senescence in Hibiscus rosa-sinensis L. was investigated. Ethylene biosynthetic (HrsACS and HrsACO) and receptor (HrsETR and HrsERS) genes were isolated and their expression evaluated in three different floral tis...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/err218
更新日期：2011-11-01 00:00:00
abstract：:Natural vegetation is predicted to suffer from extreme heat events as a result of global warming. In this study, we focused on the immediate response to heat stress. Photosynthesis and volatile emissions were measured in the leaves of tobacco (Nicotiana tabacum cv. Wisconsin 38) after exposure to heat shock treatments...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erz255
更新日期：2019-09-24 00:00:00
abstract：:Root growth is modulated by different factors, including phytohormones, transcription factors, and microRNAs (miRNAs). MicroRNA156 and its targets, the SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes, define an age-dependent pathway that controls several developmental processes, including lateral root emergence. Ho...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erz475
更新日期：2020-01-23 00:00:00
abstract：:The carbohydrate moieties of arabinogalactan proteins (AGPs) are essential for their physiological functions and undergo rapid turnover in vivo. Degradation of the carbohydrate moieties of AGPs seems to occur by concerted action of several glycosidases, among them alpha-L-arabinofuranosidase, beta-D-galactosidase, and...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erj206
更新日期：2006-01-01 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：:Understanding the evolution events defining silicon (Si) uptake in plant species is important for the efficient exploration of Si-derived benefits. In the present study, Si accumulation was studied in 456 diverse plant species grown in uniform field conditions, and in a subset of 151 species grown under greenhouse con...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/eraa342
更新日期：2020-12-02 00:00:00
abstract：:This study describes the variation in the mean relative shoot Ca content within the angiosperms at the ordinal level. Data were derived from studies in the literature in which the shoot Ca content of two or more species had been compared, and from a hydroponic experiment in which plants were selected to represent the ...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erg143
更新日期：2003-05-01 00:00:00
abstract：:Drivers behind food security and crop protection issues are discussed in relation to food losses caused by pests. Pests globally consume food estimated to feed an additional one billion people. Key drivers include rapid human population increase, climate change, loss of beneficial on-farm biodiversity, reduction in pe...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/err064
更新日期：2011-06-01 00:00:00
abstract：:Xylella fastidiosa, a xylem-limited bacterial pathogen that causes bacterial leaf scorch in its hosts, has a diverse and extensive host range among plant species worldwide. Previous work has shown that water stress enhances leaf scorch symptom severity and progression along the stem in Parthenocissus quinquefolia infe...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/erg046
更新日期：2003-01-01 00:00:00
abstract：:In Arabidopsis thaliana, the endogenous danger peptides, AtPeps, have been associated with plant defences reminiscent of those induced in pattern-triggered immunity. AtPeps are perceived by two homologous receptor kinases, PEPR1 and PEPR2, and are encoded in the C termini of the PROPEP precursors. Here, we report that...
journal_title：Journal of experimental botany
pub_type： 杂志文章
doi：10.1093/jxb/ert330
更新日期：2013-12-01 00:00:00
