Chilling responses of maize (Zea mays L.) seedlings: root hydraulic conductance, abscisic acid, and stomatal conductance.

Abstract:

:Maize seedling water relations and abscisic acid (ABA) levels were measured over 24 h of root chilling (5.5 degrees C). At 2.5 h into chilling, leaf ABA levels increased by 40x and stomatal conductance (g(s)) decreased to 20% compared with prechill levels. Despite a rapid g(s) response to root chilling, leaf water potential (Psi(L)) of chilled seedlings decreased to -2.2 MPa resulting in a complete loss of turgor potential (psi(p)). Ineffective g(s) control early in chilling resulted from decreased root hydraulic conductance (L(r)) due to increased water viscosity and factor(s) intrinsic to the roots. After 24 h chilling, Psi(L) and psi(p) of chilled seedlings recovered to control levels due to stomatal control of transpiration and increased L(r). The impact of the temporal changes in g(s) and L(r) on maize seedling water relations during chilling was analysed using a simple, quantitative hydraulic model. It was determined that g(s) is critical to stabilizing Psi(L) at non-lethal levels in chilled seedlings at 2.5 h and 24 h chilling. However, there was also a significant contribution due to increased L(r) at 24 h chilling so that psi(p) increased to control levels. As a first step in determining the factor(s) responsible for the increase in L(r), cDNA microarrays were used to quantify the transcript levels of eight aquaporins obtained from mature root tissue at 24 h chilling. None of these were significantly up-regulated, suggesting that the increase in L(r) was not due to regulation of these aquaporins at the transcriptional level.

journal_name

J Exp Bot

authors

Melkonian J,Yu LX,Setter TL

doi

10.1093/jxb/erh215

keywords:

subject

Has Abstract

pub_date

2004-08-01 00:00:00

pages

1751-60

issue

403

eissn

0022-0957

issn

1460-2431

pii

erh215

journal_volume

55

pub_type

杂志文章
  • Influx and accumulation of Cs(+) by the akt1 mutant of Arabidopsis thaliana (L.) Heynh. lacking a dominant K(+) transport system.

    abstract::An extensive literature reports that Cs(+), an environmental contaminant, enters plant cells through K(+) transport systems. Several recently identified plant K(+) transport systems are permeable to Cs(+). Permeation models indicate that most Cs(+) uptake into plant roots under typical soil ionic conditions will be me...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/52.357.839

    authors: Broadley MR,Escobar-Gutiérrez AJ,Bowen HC,Willey NJ,White PJ

    更新日期:2001-04-01 00:00:00

  • Multiple paths of sugar-sensing and a sugar/oxygen overlap for genes of sucrose and ethanol metabolism.

    abstract::The two-fold purpose of this work is, first, to review current hypotheses for multiple paths of sugar-sensing in an oxygen-responsive context, and second, to present evidence for the extent of sugar/oxygen overlap regulating genes for sucrose and ethanol metabolism. Current data indicate that sugar signals in plants m...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jexbot/51.suppl_1.417

    authors: Koch KE,Ying Z,Wu Y,Avigne WT

    更新日期:2000-02-01 00:00:00

  • Drying times: plant traits to improve crop water use efficiency and yield.

    abstract::Crop water use efficiency (WUE) has come into sharp focus as population growth and climate change place increasing strain on the water used in cropping. Rainfed crops are being challenged by an upward trend in evaporative demand as average temperatures rise and, in many regions, there is an increased irregularity and ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa002

    authors: Condon AG

    更新日期:2020-04-06 00:00:00

  • Mutations in the Arabidopsis SWC6 gene, encoding a component of the SWR1 chromatin remodelling complex, accelerate flowering time and alter leaf and flower development.

    abstract::Mutations affecting the Arabidopsis SWC6 gene encoding a putative orthologue of a component of the SWR1 chromatin remodelling complex in plants have been characterized. swc6 mutations cause early flowering, shortened inflorescence internodes, and altered leaf and flower development. These phenotypic defects resemble t...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erm332

    authors: Lázaro A,Gómez-Zambrano A,López-González L,Piñeiro M,Jarillo JA

    更新日期:2008-01-01 00:00:00

  • Arabidopsis cyclic nucleotide-gated channel 6 is negatively modulated by multiple calmodulin isoforms during heat shock.

    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

    authors: Niu WT,Han XW,Wei SS,Shang ZL,Wang J,Yang DW,Fan X,Gao F,Zheng SZ,Bai JT,Zhang B,Wang ZX,Li B

    更新日期:2020-01-01 00:00:00

  • Tricho- and atrichoblast cell files show distinct PIN2 auxin efflux carrier exploitations and are jointly required for defined auxin-dependent root organ growth.

    abstract::The phytohormone auxin is a vital growth regulator in plants. In the root epidermis auxin steers root organ growth. However, the mechanisms that allow adjacent tissues to integrate growth are largely unknown. Here, the focus is on neighbouring epidermal root tissues to assess the integration of auxin-related growth re...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erv282

    authors: Löfke C,Scheuring D,Dünser K,Schöller M,Luschnig C,Kleine-Vehn J

    更新日期:2015-08-01 00:00:00

  • Good and bad protons: genetic aspects of acidity stress responses in plants.

    abstract::Physiological aspects of acidity stress in plants (synonymous with H(+) rhizotoxicity or low-pH stress) have long been a focus of research, in particular with respect to acidic soils where aluminium and H(+) rhizotoxicities often co-occur. However, toxic H(+) and Al(3+) elicit different response mechanisms in plants, ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erv437

    authors: Shavrukov Y,Hirai Y

    更新日期:2016-01-01 00:00:00

  • Gene duplication within the Green Lineage: the case of TEL genes.

    abstract::Recent years have witnessed a breathtaking increase in the availability of genome sequence data, providing evidence of the highly duplicate nature of eukaryotic genomes. Plants are exceptional among eukaryotic organisms in that duplicate loci compose a large fraction of their genomes, partly because of the frequent oc...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/ers181

    authors: Charon C,Bruggeman Q,Thareau V,Henry Y

    更新日期:2012-09-01 00:00:00

  • Metabolic regulation underlying tomato fruit development.

    abstract::The development and maturation of tomato fruits has received considerable attention because of both the uniqueness of such processes to the biology of plants and the importance of these fruits as a component of the human diet. Molecular and genetic analysis of fruit development, and especially ripening of fleshy fruit...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erj020

    authors: Carrari F,Fernie AR

    更新日期:2006-01-01 00:00:00

  • A perspective on crassulacean acid metabolism photosynthesis evolution of orchids on different continents: Dendrobium as a case study.

    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

    authors: Li MH,Liu DK,Zhang GQ,Deng H,Tu XD,Wang Y,Lan SR,Liu ZJ

    更新日期:2019-11-29 00:00:00

  • Differential responses of grapevine rootstocks to water stress are associated with adjustments in fine root hydraulic physiology and suberization.

    abstract::Water deficits are known to alter fine root structure and function, but little is known about how these responses contribute to differences in drought resistance across grapevine rootstocks. The ways in which water deficit affects root anatomical and physiological characteristics were studied in two grapevine rootstoc...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erv324

    authors: Barrios-Masias FH,Knipfer T,McElrone AJ

    更新日期:2015-09-01 00:00:00

  • A defence-related Olea europaea β-glucosidase hydrolyses and activates oleuropein into a potent protein cross-linking agent.

    abstract::Oleuropein, the major secoiridoid compound in olive, is involved in a sophisticated two-component defence system comprising a β-glucosidase enzyme that activates oleuropein into a toxic glutaraldehyde-like structure. Although oleuropein deglycosylation studies have been monitored extensively, an oleuropein β-glucosida...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erv002

    authors: Koudounas K,Banilas G,Michaelidis C,Demoliou C,Rigas S,Hatzopoulos P

    更新日期:2015-04-01 00:00:00

  • Nitrate, NO and haemoglobin in plant adaptation to hypoxia: an alternative to classic fermentation pathways.

    abstract::The role of nitrate reduction to produce nitric oxide (NO) and its subsequent oxidation by oxyhaemoglobin as a mechanism to maintain plant cell energetics during hypoxia is examined. Nitrate reduction in hypoxic conditions can be considered as an alternative respiratory pathway, with nitrate as an intermediate electro...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erh272

    authors: Igamberdiev AU,Hill RD

    更新日期:2004-12-01 00:00:00

  • Variation in the k(cat) of Rubisco in C(3) and C(4) plants and some implications for photosynthetic performance at high and low temperature.

    abstract::The capacity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) to consume RuBP is a major limitation on the rate of net CO(2) assimilation (A) in C(3) and C(4) plants. The pattern of Rubisco limitation differs between the two photosynthetic types, as shown by comparisons of temperature and CO(2) responses o...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/53.369.609

    authors: Sage RF

    更新日期:2002-04-01 00:00:00

  • Nicotiana tabacum agglutinin is active against Lepidopteran pest insects.

    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

    authors: Vandenborre G,Groten K,Smagghe G,Lannoo N,Baldwin IT,Van Damme EJ

    更新日期:2010-02-01 00:00:00

  • The Medicago truncatula Yellow Stripe1-Like3 gene is involved in vascular delivery of transition metals to root nodules.

    abstract::Symbiotic nitrogen fixation carried out in legume root nodules requires transition metals. These nutrients are delivered by the host plant to the endosymbiotic nitrogen-fixing bacteria living within the nodule cells, a process in which vascular transport is essential. As members of the Yellow Stripe-Like (YSL) family ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa390

    authors: Castro-Rodríguez R,Abreu I,Reguera M,Novoa-Aponte L,Mijovilovich A,Escudero V,Jiménez-Pastor FJ,Abadía J,Wen J,Mysore KS,Álvarez-Fernández A,Küpper H,Imperial J,González-Guerrero M

    更新日期:2020-12-31 00:00:00

  • Sugar regulation of SUGAR TRANSPORTER PROTEIN 1 (STP1) expression in Arabidopsis thaliana.

    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

    authors: Cordoba E,Aceves-Zamudio DL,Hernández-Bernal AF,Ramos-Vega M,León P

    更新日期:2015-01-01 00:00:00

  • Subcellular localization and trafficking of phytolongins (non-SNARE longins) in the plant secretory pathway.

    abstract::SNARE proteins are central elements of the machinery involved in membrane fusion of eukaryotic cells. In animals and plants, SNAREs have diversified to sustain a variety of specific functions. In animals, R-SNARE proteins called brevins have diversified; in contrast, in plants, the R-SNARE proteins named longins have ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erw094

    authors: de Marcos Lousa C,Soubeyrand E,Bolognese P,Wattelet-Boyer V,Bouyssou G,Marais C,Boutté Y,Filippini F,Moreau P

    更新日期:2016-04-01 00:00:00

  • Acyl substrate preferences of an IAA-amido synthetase account for variations in grape (Vitis vinifera L.) berry ripening caused by different auxinic compounds indicating the importance of auxin conjugation in plant development.

    abstract::Nine Gretchen Hagen (GH3) genes were identified in grapevine (Vitis vinifera L.) and six of these were predicted on the basis of protein sequence similarity to act as indole-3-acetic acid (IAA)-amido synthetases. The activity of these enzymes is thought to be important in controlling free IAA levels and one auxin-indu...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/err134

    authors: Böttcher C,Boss PK,Davies C

    更新日期:2011-08-01 00:00:00

  • An inland and a coastal population of the Mediterranean xero-halophyte species Atriplex halimus L. differ in their ability to accumulate proline and glycinebetaine in response to salinity and water stress.

    abstract::Soil salinity and drought compromise water uptake and lead to osmotic adjustment in xero-halophyte plant species. These important environmental constraints may also have specific effects on plant physiology. Stress-induced accumulation of osmocompatible solutes was analysed in two Tunisian populations of the Mediteran...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ern040

    authors: Ben Hassine A,Ghanem ME,Bouzid S,Lutts S

    更新日期:2008-01-01 00:00:00

  • The challenges of commercializing second-generation transgenic crop traits necessitate the development of international public sector research infrastructure.

    abstract::It has been 30 years since the first transformation of a gene into a plant species, and since that time a number of biotechnology products have been developed, with the most important being insect- and herbicide-resistant crops. The development of second-generation products, including nutrient use efficiency and toler...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/eru236

    authors: Rothstein SJ,Bi YM,Coneva V,Han M,Good A

    更新日期:2014-10-01 00:00:00

  • The role of glutamine synthetase and glutamate dehydrogenase in nitrogen assimilation and possibilities for improvement in the nitrogen utilization of crops.

    abstract::This short review outlines the central role of glutamine synthetase (GS) in plant nitrogen metabolism and discusses some possibilities for crop improvement. GS functions as the major assimilatory enzyme for ammonia produced from N fixation, and nitrate or ammonia nutrition. It also reassimilates ammonia released as a ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jexbot/53.370.979

    authors: Miflin BJ,Habash DZ

    更新日期:2002-04-01 00:00:00

  • Developmental and stress regulation of gene expression for a 9-cis-epoxycarotenoid dioxygenase, CstNCED, isolated from Crocus sativus stigmas.

    abstract::Oxidative cleavage of cis-epoxycarotenoids by 9-cis-epoxycarotenoid dioxygenase (NCED) is the critical step in the regulation of abscisic acid (ABA) synthesis in higher plants. ABA has been associated with dormancy and flower senescence, while also regulating plant adaptive responses to various environmental stresses....

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/err293

    authors: Ahrazem O,Rubio-Moraga A,Trapero A,Gómez-Gómez L

    更新日期:2012-01-01 00:00:00

  • Interactive effects of water stress and xylem-limited bacterial infection on the water relations of a host vine.

    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

    authors: McElrone AJ,Sherald JL,Forseth IN

    更新日期:2003-01-01 00:00:00

  • The beneficial endophyte Trichoderma hamatum isolate DIS 219b promotes growth and delays the onset of the drought response in Theobroma cacao.

    abstract::Theobroma cacao (cacao) is cultivated in tropical climates and is exposed to drought stress. The impact of the endophytic fungus Trichoderma hamatum isolate DIS 219b on cacao's response to drought was studied. Colonization by DIS 219b delayed drought-induced changes in stomatal conductance, net photosynthesis, and gre...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erp165

    authors: Bae H,Sicher RC,Kim MS,Kim SH,Strem MD,Melnick RL,Bailey BA

    更新日期:2009-01-01 00:00:00

  • HYL1 is required for establishment of stamen architecture with four microsporangia in Arabidopsis.

    abstract::The stamen produces pollen grains for pollination in higher plants. Coordinated development of four microsporangia in the stamen is essential for normal fertility. The roles of miR165/166-directed pathways in the establishment of adaxial-abaxial polarity have been well defined in leaves. However, the molecular mechani...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ert178

    authors: Lian H,Li X,Liu Z,He Y

    更新日期:2013-08-01 00:00:00

  • Protein tyrosine nitration in pea roots during development and senescence.

    abstract::Protein tyrosine nitration is a post-translational modification mediated by reactive nitrogen species (RNS) that is associated with nitro-oxidative damage. No information about this process is available in relation to higher plants during development and senescence. Using pea plants at different developmental stages (...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ert006

    authors: Begara-Morales JC,Chaki M,Sánchez-Calvo B,Mata-Pérez C,Leterrier M,Palma JM,Barroso JB,Corpas FJ

    更新日期:2013-02-01 00:00:00

  • A 9 bp cis-element in the promoters of class I small heat shock protein genes on chromosome 3 in rice mediates L-azetidine-2-carboxylic acid and heat shock responses.

    abstract::In rice, the class I small heat shock protein (sHSP-CI) genes were found to be selectively induced by L-azetidine-2-carboxylic acid (AZC) on chromosome 3 but not chromosome 1. Here it is shown that a novel cis-responsive element contributed to the differential regulation. By serial deletion and computational analysis,...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erq230

    authors: Guan JC,Yeh CH,Lin YP,Ke YT,Chen MT,You JW,Liu YH,Lu CA,Wu SJ,Lin CY

    更新日期:2010-10-01 00:00:00

  • Transient response of sap flow to wind speed.

    abstract::Transient responses of sap flow to step changes in wind speed were experimentally investigated in a wind tunnel. A Granier-type sap flow sensor was calibrated and tested in a cylindrical tube for analysis of its transient time response. Then the sensor was used to measure the transient response of a well-watered Pachi...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ern282

    authors: Chu CR,Hsieh CI,Wu SY,Phillips NG

    更新日期:2009-01-01 00:00:00

  • Okadaic acid (1 microM) accelerates S phase and mitosis but inhibits heterochromatin replication and metaphase anaphase transition in Vicia faba meristem cells.

    abstract::Protein kinases and phosphatases are the foremost agents which take part in cell cycle regulation in both plants and other eukaryotes. Protein kinases are a very well examined group of proteins with respect to chemical structure and function. Nowadays protein phosphatases, including PP1 and PP2A belonging to the PSP f...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erm148

    authors: Polit JT,Kazmierczak A

    更新日期:2007-01-01 00:00:00