当前位置： SCI文献检索 > PLANTA期刊下所有文献 > Loss of pectin is an early event during infection of cocoyam roots by Pythium myriotylum.

Loss of pectin is an early event during infection of cocoyam roots by Pythium myriotylum.

Abstract：

:Cocoyam (Xanthosoma sagittifolium) is an important tuber crop in most tropical zones of Africa and America. In Cameroon, its cultivation is hampered by a soil-borne fungus Pythium myriotylum which is responsible for root rot disease. The mechanism of root colonisation by the fungus has yet to be elucidated. In this study, using microscopical and immunocytochemical methods, we provide a new evidence regarding the mode of action of the fungus and we describe the reaction of the plant to the early stages of fungal invasion. We show that the fungal attack begins with the colonisation of the peripheral and epidermal cells of the root apex. These cells are rapidly lost upon infection, while cortical and stele cells are not. Labelling with the cationic gold, which binds to negatively charged wall polymers such as pectins, is absent in cortical cells and in the interfacial zone of the infected roots while it is abundant in the cell walls of stele cells. A similar pattern of labelling is also found when using the anti-pectin monoclonal antibody JIM5, but not with anti-xyloglucan antibodies. This suggests that early during infection, the fungus causes a significant loss of pectin probably via degradation by hydrolytic enzymes that diffuse and act away from the site of attack. Additional support for pectin loss is the demonstration, via sugar analysis, that a significant decrease in galacturonic acid content occurred in infected root cell walls. In addition, we demonstrate that one of the early reactions of X. sagittifolium to the fungal invasion is the formation of wall appositions that are rich in callose and cellulose.

journal_name

Planta

journal_title

Planta

authors

Boudjeko T,Andème-Onzighi C,Vicré M,Balangé AP,Ndoumou DO,Driouich A

doi

10.1007/s00425-005-0090-2

subject

Has Abstract

pub_date

2006-01-01 00:00:00

pages

271-82

issue

2

eissn

0032-0935

issn

1432-2048

journal_volume

223

pub_type

杂志文章

相关文献

PLANTA文献大全
  • Heat-stress induced synthesis of chloroplast protein synthesis elongation factor (EF-Tu) in a heat-tolerant maize line.

    abstract：:A heat-tolerant maize (Zea mays L.) line, ZPBL 1304, synthesizes a unique set of five heat-shock polypeptides of 45 kDa. Previous studies suggested that these polypeptides might play a role in the development of thermotolerance in maize (Ristic et al., 1996, J. Plant Physiol. 149:424-432; Ristic et al., 1998, J. Plant...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s004250000416

    authors： Bhadula SK,Elthon TE,Habben JE,Helentjaris TG,Jiao S,Ristic Z

    更新日期：2001-02-01 00:00:00

  • Diverse spontaneous silencing of a transgene among two Nicotiana species.

    abstract：:In plants, transgenes frequently become spontaneously silenced for unknown reasons. Typically, transgene silencing involves the generation of small interfering RNAs (siRNAs) that directly or indirectly target cognate DNA and mRNA sequences for methylation and degradation, respectively. In this report, we compared spon...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-011-1433-9

    authors： Dalakouras A,Moser M,Boonrod K,Krczal G,Wassenegger M

    更新日期：2011-10-01 00:00:00

  • Identification of high-affinity binding sites for the hepta-beta-glucoside elicitor in membranes of the model legumes Medicago truncatula and Lotus japonicus.

    abstract：:Previous studies have led to the identification and characterization of specific, high-affinity binding sites for a hepta-beta-glucoside elicitor in soybean. A survey of plant species for elicitor-binding activity reveals that among the plants tested, the hepta-beta-glucoside elicitor is only recognized by plants belo...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s004250000325

    authors： Côté F,Roberts KA,Hahn MG

    更新日期：2000-09-01 00:00:00

  • Induction of multinucleation by beta-glucosyl Yariv reagent in regenerated cells from Marchantia polymorpha protoplasts and involvement of arabinogalactan proteins in cell plate formation.

    abstract：:Arabinogalactan proteins (AGPs) are abundant plant cell surface proteoglycans widely distributed in plant species. Since high concentrations of beta-glucosyl Yariv reagent (betaglcY), which binds selectively to AGPs, inhibited cell division of protoplast-regenerated cells of the liverwort Marchantia polymorpha L. (Shi...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-009-0954-y

    authors： Shibaya T,Sugawara Y

    更新日期：2009-08-01 00:00:00

  • Effects of inorganic nitrogen on C2H 2 reduction and CO 2 exchange in the Peltigera praetextata-Nostoc and Peltigera aphthosa-Coccomyxa-Nostoc symbioses.

    abstract：:Uptake of NH 4 (+) and NO 3 (-) by the N2-fixing lichens Peltigera praetextata (two-component lichen) and P. aphthosa (three-component lichen) was studied. In addition, the effects of these ions, separately and in combination, on C2H2 reduction and CO2 exchange were examined. Both NH 4 (+) and NO 3 (-) were utilized b...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00397201

    authors： Hällbom L,Bergman B

    更新日期：1983-04-01 00:00:00

  • Characterization of the protein from gas-vacuole membranes of the blue-green alga, Microcystis aeruginosa.

    abstract：:The purified protein which constitutes the membranes of the gas vacuoles of the the blue-green alga, Microcystis aeruginosa, was partially characterized. Gel electrophoresis and end-group analysis indicate that the protein is a single species. Strongly protic solvents such as formic acid are the only reagents causing ...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00385192

    authors： Jones DD,Jost M

    更新日期：1971-12-01 00:00:00

  • A molecular assessment of the genetic model of spathe color inheritance in Anthurium andraeanum (Hort.).

    abstract：:Past genetic studies have shown three independent loci designated O, R and M control spathe color in Anthurium andraeanum (Hort.). To evaluate the genetic model and to understand the control of anthocyanin biosynthesis at the molecular level, the expression of the anthocyanin biosynthetic genes, CHS, F3H, DFR, ANS and...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-013-2007-9

    authors： Gopaulchan D,Umaharan P,Lennon AM

    更新日期：2014-03-01 00:00:00

  • Ectomycorrhizins - symbiosis-specific or artifactual polypeptides from ectomycorrhizas?

    abstract：:Fungal mycelium of the fly agaric (Amanita muscaria [L. ex Fr.] Hooker), and inoculated or noninoculated seedlings of Norway spruce (Picea abies [L.] Karst.) were grown aseptically under controlled conditions. In order to detect symbiosis-specific polypeptides ('ectomycorrhizins', see Hubert and Martin, 1988, New Phyt...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF01160722

    authors： Guttenberger M,Hampp R

    更新日期：1992-03-01 00:00:00

  • Metabolism of indole-3-acetaldoxime in plants.

    abstract：:Living tissues of diverse plants representing 17 families were infiltrated with indole-3-acetaldoxime (IAAld oxime) in phosphate buffer, pH 6, and incubated for 3 hours at 25°C. Indole compounds were then extracted, separated and identified by paper or thin-layer chromatography (TLC). Indole-3-acetic acid (IAA) was qu...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00394605

    authors： Rajagopal R,Larsen P

    更新日期：1972-03-01 00:00:00

  • Analysis of growth components in Allium roots.

    abstract：:Root growth was analyzed in Allium cepa L. grown under steady-state conditions at 10, 15 and 25°C by measuring cell sizes along the meristem and mature zones at these three temperatures and in the elongation zone at 15°C. The absolute rate of growth, v(x), was determined as a function of the mean cell number of cells ...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00402962

    authors： Carmona MJ,Cuadrado A

    更新日期：1986-06-01 00:00:00

  • Role of cytokinin in the regulation of root gravitropism.

    abstract：:The models explaining root gravitropism propose that the growth response of plants to gravity is regulated by asymmetric distribution of auxin (indole-3-acetic acid, IAA). Since cytokinin has a negative regulatory role in root growth, we suspected that it might function as an inhibitor of tropic root elongation during...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-004-1381-8

    authors： Aloni R,Langhans M,Aloni E,Ullrich CI

    更新日期：2004-11-01 00:00:00

  • Formation of bound gibberellins inPharbitis nil.

    abstract：:Developing seeds ofPharbitis nil accumulate free as well as bound gibberellins until a maximum level is reached at approximately 25 days after anthesis. Seeds from CCC-treated parent plants have a strongly reduced level of free as well as bound gibberellins. When different spray reagents were used it was found that tr...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00385821

    authors： Barendse GW

    更新日期：1971-12-01 00:00:00

  • The localisation of enzymes of nitrogen assimilation in maize leaves and their activities during greening.

    abstract：:The activities of nitrate reductase (EC1.6.6.1), nitrite reductase (EC 1.6.6.4), glutamine synthetase (EC6.3.1.2), glutamate synthase (EC1.4.7.1) and NAD(P)H-dependent glutamate dehydrogenase (EC 1.4.1.3) were investigated in mesophyll and bundle sheath cells of maize leaves (Zea mays L.). Whereas nitrate and nitrite ...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00384971

    authors： Harel E,Lea PJ,Miflin BJ

    更新日期：1977-01-01 00:00:00

  • Acetyl-CoA-carboxylase activity in normally developing wheat leaves.

    abstract：:In order to investigate the role of acetyl CoA carboxylase (ACC) in the regulation of fatty-acid biosynthesis in chloroplasts, the activities and relative amounts of the enzyme have been measured in the tissue of wheat (Triticum aestivum L.) leaves undergoing development and cellular differentiation. The total activit...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00392296

    authors： Hawke JC,Leech RM

    更新日期：1987-08-01 00:00:00

  • Some observations on the role of ATP in sieve tube translocation.

    abstract：:Using the aphid stylet technique (14)C ATP was shown to be readily taken up into the sieve elements of willow. At the same time this compound was found to be metabolised during uptake resulting in labelled ADP and AMP appearing in the stylet exudate. Longitudinal movement of labelled ATP was also found to occur.Measur...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00397937

    authors： Gardner DC,Peel AJ

    更新日期：1972-09-01 00:00:00

  • Proteomic analysis of molecular response to oxidative stress by the green alga Haematococcus pluvialis (Chlorophyceae).

    abstract：:Rapidly growing, green motile flagellates of Haematococcus pluvialis can transform into enlarged red resting cysts (aplanospores) under oxidative stress conditions. However, it is not known what initial molecular defense mechanisms occur in response to oxidative stress, and may ultimately lead to cellular transformati...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-004-1323-5

    authors： Wang SB,Chen F,Sommerfeld M,Hu Q

    更新日期：2004-11-01 00:00:00

  • [The metabolism of starch : I. The conversion of sucrose into starch in the cotyledons of vicia faba].

    abstract：:The determination of the activities of the enzymes which could be involved in sucrose-starch conversion showed that the first step of this transfer is performed by the sucrose-synthetase. In this reaction UDPG and almost no ADPG is formed. However, under the given conditions the concentration of UDPG is low, and with ...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00388316

    authors： de Fekete MA

    更新日期：1969-12-01 00:00:00

  • Induction of protection against the necrotrophic pathogens Phytophthora citrophthora and Alternaria solani in Lycopersicon esculentum Mill. by a novel synthetic glycoside combined with amines.

    abstract：:1,2,3,4-tetra-O-acetyl-6-ethyladipate-beta- D-glucopyranose (TOGE), a glycoside derivative of adipic acid monoethyl ester and 1,2,3,4-tetra-O-acetyl-beta- D-glucopyranose, was synthesized and the resistance-inducing activity shown by TOGE-1 (TOGE plus furfurylamine) and TOGE-2 (TOGE plus 1,3-diaminepropane) was assaye...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-002-0945-8

    authors： Flors V,Miralles MC,González-Bosch C,Carda M,García-Agustín P

    更新日期：2003-04-01 00:00:00

  • Heterogeneous inhibition of photosynthesis over the leaf surface of rosa rubiginosa L. during water stress and abscisic acid treatment: induction of a metabolic component by limitation of CO(2) diffusion

    abstract：:The contribution of changes in stomatal conductance and metabolism in determining heterogeneous photosynthesis inhibition during dehydration and abscisic acid (ABA) feeding was investigated using detached leaves of Rosa rubiginosa L. The steady-state and maximal rates of electron transport under a transient high CO(2)...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s004250050661

    authors： Meyer S,Genty B

    更新日期：1999-11-01 00:00:00

  • Transport of assimilates in the developing caryopsis of rice (Oryza sativa L.) : Ultrastructure of the pericarp vascular bundle and its connections with the aleurone layer.

    abstract：:Assimilates entering the developing rice caryopsis traverse a short-distance pathway between the terminal sieve elements of the pericarp vascular bundle and the aleurone layer. The ultrastructure of this pathway has been studied. Sieve elements in the pericarp vascular bundle are smaller than their companion cells.The...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00387436

    authors： Oparka KJ,Gates P

    更新日期：1981-05-01 00:00:00

  • Analysis of the phytochrome gene family in Ceratodon purpureus by gene targeting reveals the primary phytochrome responsible for photo- and polarotropism.

    abstract：:Using gene targeting by homologous recombination in Ceratodon purpureus, we were able to knock out four phytochrome photoreceptor genes independently and to analyze their function with respect to red light dependent phototropism, polarotropism, and chlorophyll content. The strongest phenotype was found in knock-out li...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-009-0922-6

    authors： Mittmann F,Dienstbach S,Weisert A,Forreiter C

    更新日期：2009-06-01 00:00:00

  • Suppression of somatic embryogenesis in Citrus cell cultures by extracellular proteins.

    abstract：:Nucellar-derived cell cultures of sour orange (Citrus aurantium L.) proliferate as proembryogenic masses. By a change in the carbon source of the medium from sucrose to glycerol they are induced to undergo synchronous embryogenesis forming embryo initials that develop into globular embryos. The proembryogenic masses r...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00198030

    authors： Gavish H,Vardi A,Fluhr R

    更新日期：1992-03-01 00:00:00

  • Breeding and biotechnological interventions for trait improvement: status and prospects.

    abstract：MAIN CONCLUSION:Present review describes the molecular tools and strategies deployed in the trait discovery and improvement of major crops. The prospects and challenges associated with these approaches are discussed. Crop improvement relies on modulating the genes and genomic regions underlying key traits, either direc...

    journal_title：Planta

    pub_type： 杂志文章,评审

    doi：10.1007/s00425-020-03465-4

    authors： Singh RK,Prasad A,Muthamilarasan M,Parida SK,Prasad M

    更新日期：2020-09-18 00:00:00

  • Endogenous hydrogen peroxide is a key factor in the yeast extract-induced activation of biphenyl biosynthesis in cell cultures of Sorbus aucuparia.

    abstract：:Biphenyls are unique phytoalexins produced by plants belonging to Pyrinae, a subtribe of the economically important Rosaceae family. The formation of aucuparin, a well-known biphenyl, is induced by yeast extract (YE) in cell cultures of Sorbus aucuparia. However, the molecular mechanism underlying YE-induced activatio...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-011-1545-2

    authors： Qiu X,Lei C,Huang L,Li X,Hao H,Du Z,Wang H,Ye H,Beerhues L,Liu B

    更新日期：2012-01-01 00:00:00

  • Selective precipitation and characterization of lignin-carbohydrate complexes (LCCs) from Eucalyptus.

    abstract：MAIN CONCLUSION:Six types of lignin-carbohydrate complex (LCC) fractions were isolated from Eucalyptus. The acidic dioxane treatment applied significantly improved the yield of LCCs. The extraction conditions had a limited impact on the LCC structures and linkages. Characterization of the lignin-carbohydrate complex (L...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-018-2842-9

    authors： Zhao BC,Xu JD,Chen BY,Cao XF,Yuan TQ,Wang SF,Charlton A,Sun RC

    更新日期：2018-05-01 00:00:00

  • The interrelationship between the accumulation of lipids, protein and the level of acyl carrier protein during the development of Brassica napus L. pollen.

    abstract：:Lipid accumulation during pollen and tapetal development was studied using cryostat sections of unfixed anthers from Brassica napus (rapeseed). Diamidino-2-henylindole (DAPI), a DNA fluorochrome, was used to stain the pollen nuclei in order to identify ten stages of pollen development in Brassica. Storage lipids (i.e....

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00195314

    authors： Evans DE,Taylor PE,Singh MB,Knox RB

    更新日期：1992-02-01 00:00:00

  • A comparative study of the early osmotic, ionic, redox and hormonal signaling response in leaves and roots of two halophytes and a glycophyte to salinity.

    abstract：:Salt stress is one of the most important abiotic stress factors affecting plant growth and productivity in natural ecosystems. In this study, we aimed at determining possible differences between salt tolerant and salt sensitive species in early (within 72 h) salt stress response in leaves and roots. To this purpose, w...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/s00425-014-2154-7

    authors： Ellouzi H,Ben Hamed K,Hernández I,Cela J,Müller M,Magné C,Abdelly C,Munné-Bosch S

    更新日期：2014-12-01 00:00:00

  • Turnover and transport of quinolizidine alkaloids. Diurnal fluctuations of lupanine in the phloem sap, leaves and fruits of Lupinus albus L.

    abstract：:Quinolizidine alkaloids formed in the leaves of Lupinus albus L. are translocated via the phloem to the other plant organs, especially the maturing fruits. Compared with amino-acid transport in the phloem, the alkaloids contribute about 8% to the overall nitrogen being exported from the leaf. Since it is likely that t...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00407083

    authors： Wink M,Witte L

    更新日期：1984-11-01 00:00:00

  • Circadian rhythms in crassulacean acid metabolism: phase relationships between gas exchange, leaf water relations and malate metabolism in Kalanchoë daigremontiana.

    abstract：:Gas exchange, leaf water relations, malate content and phosphoenolpyruvate (PEP) carboxylase activity in crude extracts were examined for circadian rhythmicity in the crassulacean acid metabolism plant Kalanchoë daigremontiana. At low irradiance (20 W m(-2)) the rhythm in CO2 uptake continued for several days with a p...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00398721

    authors： Buchanan-Bollig IC,Smith JA

    更新日期：1984-06-01 00:00:00

  • [The chlorophyll content of tumors from pale and green leaf tissues of Kalanchoe fedtschenkoi].

    abstract：:Pale and green leaves of Kalanchoe fedtschenkoi var. variegata were inoculated with Agrobacterium tumefaciens. Six weeks later the chlorophyll contents of the leaves and their tumors were investigated. The tumor tissues possess very similar concentrations of chlorophylls and a low number of chloroplasts per cell. Ther...

    journal_title：Planta

    pub_type： 杂志文章

    doi：10.1007/BF00385563

    authors： Beiderbeck R,Nitsche H

    更新日期：1970-03-01 00:00:00