pyrus

Summary

Summary: A plant genus of the family ROSACEAE known for the edible fruit.

Top Publications

  1. Sassa H, Kakui H, Miyamoto M, Suzuki Y, Hanada T, Ushijima K, et al. S locus F-box brothers: multiple and pollen-specific F-box genes with S haplotype-specific polymorphisms in apple and Japanese pear. Genetics. 2007;175:1869-81 pubmed
    ..Here, we analyzed the S locus of two species of Maloideae: apple (Malus domestica) and Japanese pear (Pyrus pyrifolia). The sequencing of a 317-kb region of the apple S9 haplotype revealed two similar F-box genes...
  2. Pedreschi R, Vanstreels E, Carpentier S, Hertog M, Lammertyn J, Robben J, et al. Proteomic analysis of core breakdown disorder in Conference pears (Pyrus communis L.). Proteomics. 2007;7:2083-99 pubmed
    ..Proteomics coupled to univariate and multivariate statistical techniques seems to be an efficient approach to get a better insight into the different mechanisms and pathways leading to the core breakdown disorder...
  3. Norioka S, Oneyama C, Takuma S, Shinkawa T, Ishimizu T, Nakanishi T, et al. Purification and characterization of a non-S-RNase and S-RNases from styles of Japanese pear (Pyrus pyrifolia). Plant Physiol Biochem. 2007;45:878-86 pubmed
    In this study we biochemically characterized stylar ribonucleases (RNases) of Japanese pear (Pyrus pyrifolia), which exhibits S-RNase-based gametophytic self-incompatibility...
  4. Zhang C, Tanabe K, Tamura F, Matsumoto K, Yoshida A. 13C-photosynthate accumulation in Japanese pear fruit during the period of rapid fruit growth is limited by the sink strength of fruit rather than by the transport capacity of the pedicel. J Exp Bot. 2005;56:2713-9 pubmed
    ..Although GA is closely involved with pedicel vascularization, it seems that photosynthate accumulation in fruit is limited by the sink strength of fruit rather than by the transport capacity of the pedicel. ..
  5. Malnoy M, Venisse J, Reynoird J, Chevreau E. Activation of three pathogen-inducible promoters of tobacco in transgenic pear (Pyrus communis L.) after abiotic and biotic elicitation. Planta. 2003;216:802-14 pubmed
  6. Lim J, Aoki K, Angel P, Garrison D, King D, Tiemeyer M, et al. Mapping glycans onto specific N-linked glycosylation sites of Pyrus communis PGIP redefines the interface for EPG-PGIP interactions. J Proteome Res. 2009;8:673-80 pubmed publisher
    ..In this paper, we have fully characterized the glycosylation on the PGIP derived from Pyrus communis and demonstrated, using a combination of PNGaseF and PNGaseA in (18)O-water, that the Pyrus communis PGIP ..
  7. Freiman A, Shlizerman L, Golobovitch S, Yablovitz Z, Korchinsky R, Cohen Y, et al. Development of a transgenic early flowering pear (Pyrus communis L.) genotype by RNAi silencing of PcTFL1-1 and PcTFL1-2. Planta. 2012;235:1239-51 pubmed publisher
    ..Spadona', one of the most important European pear (Pyrus communis L...
  8. Ho Q, Verlinden B, Verboven P, Vandewalle S, Nicolaï B. A permeation-diffusion-reaction model of gas transport in cellular tissue of plant materials. J Exp Bot. 2006;57:4215-24 pubmed
    ..17+/-1.71)x10(-19) m(2), (2.35+/-1.96)x10(-19) m(2), and (4.51+/-3.12)x10(-17) m(2), respectively. The permeation-diffusion-reaction model can be applied to study gas transport in intact pears in relation to product quality...
  9. Zhao Y, Wang D, Nakka S, Sundin G, Korban S. Systems level analysis of two-component signal transduction systems in Erwinia amylovora: role in virulence, regulation of amylovoran biosynthesis and swarming motility. BMC Genomics. 2009;10:245 pubmed publisher
    ..TCSTs play critical roles in sensing and responding to environmental conditions, and in bacterial pathogenesis. Most TCSTs in Erwinia amylovora have either not been identified or have not yet been studied...

More Information

Publications64

  1. Steyn W, Wand S, Jacobs G, Rosecrance R, Roberts S. Evidence for a photoprotective function of low-temperature-induced anthocyanin accumulation in apple and pear peel. Physiol Plant. 2009;136:461-72 pubmed publisher
    ..requirement and low-temperature stimulation of anthocyanin synthesis in peel of apple (Malus domestica) and pears (Pyrus communis) and the presence of anthocyanins in immature fruits are not congruent with a visual function in ..
  2. Koczan J, McGrath M, Zhao Y, Sundin G. Contribution of Erwinia amylovora exopolysaccharides amylovoran and levan to biofilm formation: implications in pathogenicity. Phytopathology. 2009;99:1237-44 pubmed publisher
    ..These results demonstrate that biofilm formation plays a critical role in the pathogenesis of E. amylovora...
  3. Sanzol J. Pistil-function breakdown in a new S-allele of European pear, S21*, confers self-compatibility. Plant Cell Rep. 2009;28:457-67 pubmed publisher
    ..This is the first report of a mutated S-allele conferring self-compatibility in European pear...
  4. Chen S, Zhang M, Wang S. Physiological and quality responses of Chinese 'Suli' pear (Pyrus bretschneideri Rehd) to 1-MCP vacuum infiltration treatment. J Sci Food Agric. 2010;90:1317-22 pubmed publisher
    ..The objectives of this study were to examine the effect of 1-MCP vacuum-infiltration treatment on post-harvest quality and physiology of 'Suli' pears (Pyrus bretschneideri Rehd).
  5. Kube M, Migdoll A, Gehring I, Heitmann K, Mayer Y, Kuhl H, et al. Genome comparison of the epiphytic bacteria Erwinia billingiae and E. tasmaniensis with the pear pathogen E. pyrifoliae. BMC Genomics. 2010;11:393 pubmed publisher
    ..The presence of genes that are putatively involved in virulence in E. amylovora and E. pyrifoliae is of special interest for these species in consequence...
  6. Vieira J, Morales Hojas R, Santos R, Vieira C. Different positively selected sites at the gametophytic self-incompatibility pistil S-RNase gene in the Solanaceae and Rosaceae (Prunus, Pyrus, and Malus). J Mol Evol. 2007;65:175-85 pubmed
    ..For Plantaginaceae and Rosaceae (Prunus and Pyrus/Malus) this is the first study of this kind...
  7. Kakui H, Kato M, Ushijima K, Kitaguchi M, Kato S, Sassa H. Sequence divergence and loss-of-function phenotypes of S locus F-box brothers genes are consistent with non-self recognition by multiple pollen determinants in self-incompatibility of Japanese pear (Pyrus pyrifolia). Plant J. 2011;68:1028-38 pubmed publisher
    ..we analyze the divergence of SFBB genes, the multiple pollen S candidates, of a rosaceous plant Japanese pear (Pyrus pyrifolia) and show that intrahaplotypic divergence is high and comparable to the allelic diversity of S-RNase ..
  8. Wang D, Qi M, Calla B, Korban S, Clough S, Cock P, et al. Genome-wide identification of genes regulated by the Rcs phosphorelay system in Erwinia amylovora. Mol Plant Microbe Interact. 2012;25:6-17 pubmed publisher
    ..Based on these findings as well as previous reported data, a working model has been proposed to illustrate how the Rcs phosphorelay system regulates virulence gene expression in E. amylovora...
  9. Hiwasa K, Kinugasa Y, Amano S, Hashimoto A, Nakano R, Inaba A, et al. Ethylene is required for both the initiation and progression of softening in pear (Pyrus communis L.) fruit. J Exp Bot. 2003;54:771-9 pubmed
    ..The results suggest that ethylene is required for PGs expression even in the late ripening stage, but not for EGases...
  10. Montanari S, Saeed M, Knäbel M, Kim Y, Troggio M, Malnoy M, et al. Identification of Pyrus single nucleotide polymorphisms (SNPs) and evaluation for genetic mapping in European pear and interspecific Pyrus hybrids. PLoS ONE. 2013;8:e77022 pubmed publisher
    ..sequencing (NGS) technologies to identify single nucleotide polymorphism (SNP) markers from three European pear (Pyrus communis L...
  11. Bai S, Saito T, Sakamoto D, Ito A, Fujii H, Moriguchi T. Transcriptome analysis of Japanese pear (Pyrus pyrifolia Nakai) flower buds transitioning through endodormancy. Plant Cell Physiol. 2013;54:1132-51 pubmed publisher
    The transcriptomes of endodormant and ecodormant Japanese pear (Pyrus pyrifolia Nakai 'Kosui') flower buds were analyzed using RNA-seq technology and compared...
  12. Qu H, Jiang X, Shi Z, Liu L, Zhang S. Fast loading ester fluorescent Ca2+ and pH indicators into pollen of Pyrus pyrifolia. J Plant Res. 2012;125:185-95 pubmed publisher
    ..However, the clear zone was alkaline when pollen tube growth was slowed or stopped and turned acidic when growth recovered. It is likely that apical pH(i) regulated pollen tube growth...
  13. Geider K, Auling G, Jakovljevic V, Völksch B. A polyphasic approach assigns the pathogenic Erwinia strains from diseased pear trees in Japan to Erwinia pyrifoliae. Lett Appl Microbiol. 2009;48:324-30 pubmed publisher
    ..The description of Erwinia pyrifoliae as a pear pathogen in Korea renewed a possible connection of the pear pathogens in both countries...
  14. Fischer T, Halbwirth H, Meisel B, Stich K, Forkmann G. Molecular cloning, substrate specificity of the functionally expressed dihydroflavonol 4-reductases from Malus domestica and Pyrus communis cultivars and the consequences for flavonoid metabolism. Arch Biochem Biophys. 2003;412:223-30 pubmed
    ..inhibitor prohexadione-Ca leads to major changes in the flavonoid metabolism of apple (Malus domestica) and pear (Pyrus communis) leaves...
  15. Itai A, Kotaki T, Tanabe K, Tamura F, Kawaguchi D, Fukuda M. Rapid identification of 1-aminocyclopropane-1-carboxylate (ACC) synthase genotypes in cultivars of Japanese pear (Pyrus pyrifolia Nakai) using CAPS markers. Theor Appl Genet. 2003;106:1266-72 pubmed
    In Japanese pear (Pyrus pyrifolia Nakai), fruit storage potential is closely related to the amount of ethylene produced...
  16. Pierantoni L, Cho K, Shin I, Chiodini R, Tartarini S, Dondini L, et al. Characterisation and transferability of apple SSRs to two European pear F1 populations. Theor Appl Genet. 2004;109:1519-24 pubmed
    European pear (Pyrus communis L.) is among the important fruit species for which only few genetic studies have been carried out...
  17. Okada K, Tonaka N, Moriya Y, Norioka N, Sawamura Y, Matsumoto T, et al. Deletion of a 236 kb region around S 4-RNase in a stylar-part mutant S 4sm-haplotype of Japanese pear. Plant Mol Biol. 2008;66:389-400 pubmed publisher
    Japanese pear (Pyrus pyrifolia Nakai) has a gametophytic self-incompatibility (GSI) mechanism controlled by a single S-locus with multiple S-haplotypes, each of which contains separate genes that determine the allelic identity of pistil ..
  18. Xu C, Li M, Wu J, Guo H, Li Q, Zhang Y, et al. Identification of a canonical SCF(SLF) complex involved in S-RNase-based self-incompatibility of Pyrus (Rosaceae). Plant Mol Biol. 2013;81:245-57 pubmed publisher
    ..report the identification of two pollen-specific SLF-interacting Skp1-like (SSK) proteins, PbSSK1 and PbSSK2, in Pyrus bretschneideri from the tribe Pyreae of Rosaceae...
  19. Wang C, Wu J, Xu G, Gao Y, Chen G, Wu J, et al. S-RNase disrupts tip-localized reactive oxygen species and induces nuclear DNA degradation in incompatible pollen tubes of Pyrus pyrifolia. J Cell Sci. 2010;123:4301-9 pubmed publisher
    Pear (Pyrus pyrifolia L.) has an S-RNase-based gametophytic self-incompatibility (SI) mechanism, and S-RNase has also been implicated in the rejection of self-pollen and genetically identical pollen...
  20. Wu J, Wang Z, Shi Z, Zhang S, Ming R, Zhu S, et al. The genome of the pear (Pyrus bretschneideri Rehd.). Genome Res. 2013;23:396-408 pubmed publisher
    The draft genome of the pear (Pyrus bretschneideri) using a combination of BAC-by-BAC and next-generation sequencing is reported. A 512.0-Mb sequence corresponding to 97...
  21. Geider K, Auling G, Du Z, Jakovljevic V, Jock S, Völksch B. Erwinia tasmaniensis sp. nov., a non-phytopathogenic bacterium from apple and pear trees. Int J Syst Evol Microbiol. 2006;56:2937-43 pubmed
    ..From DNA-DNA hybridization kinetics, microbiological characteristics and nucleotide sequence analyses, this species is related to pathogenic Erwinia species, but also to the epiphytic species Erwinia billingiae...
  22. Liu Z, Xu G, Zhang S. Pyrus pyrifolia stylar S-RNase induces alterations in the actin cytoskeleton in self-pollen and tubes in vitro. Protoplasma. 2007;232:61-7 pubmed
    Pears (Pyrus pyrifolia L.) have an S-RNase-based gametophytic self-incompatibility system, and S-RNases have also been implicated in self-pollen or genetically identical pollen rejection...
  23. Zheng X, Cai D, Yao L, Teng Y. Non-concerted ITS evolution, early origin and phylogenetic utility of ITS pseudogenes in Pyrus. Mol Phylogenet Evol. 2008;48:892-903 pubmed publisher
    Molecular studies of 19 species of the genus Pyrus L. revealed different degrees of intra-individual polymorphism of the internal transcribed spacer (ITS 1, 5...
  24. Liu G, Li W, Zheng P, Xu T, Chen L, Liu D, et al. Transcriptomic analysis of 'Suli' pear (Pyrus pyrifolia white pear group) buds during the dormancy by RNA-Seq. BMC Genomics. 2012;13:700 pubmed publisher
  25. Pierantoni L, Dondini L, De Franceschi P, Musacchi S, Winkel B, Sansavini S. Mapping of an anthocyanin-regulating MYB transcription factor and its expression in red and green pear, Pyrus communis. Plant Physiol Biochem. 2010;48:1020-6 pubmed publisher
    Max Red Bartlett' is a red bud mutation of the yellow pear (Pyrus communis L.) cultivar 'Williams' (known as 'Bartlett' in North America). Anthocyanins are the most important pigments for red colour in fruits...
  26. Liu W, Liu J, Xie M, Liu C, Liu W, Wan J. Characterization and high-pressure microfluidization-induced activation of polyphenoloxidase from Chinese pear (Pyrus pyrifolia Nakai). J Agric Food Chem. 2009;57:5376-80 pubmed publisher
    Polyphenoloxidase (PPO) from Chinese pear ( Pyrus pyrifolia Nakai) was characterized using catechol as a substrate. PPO had a V(max) of 289.2 units/min and a K(m) of 3.8 mmol/L, which indicates that P...
  27. Wu J, Qu H, Jin C, Shang Z, Wu J, Xu G, et al. cAMP activates hyperpolarization-activated Ca2+ channels in the pollen of Pyrus pyrifolia. Plant Cell Rep. 2011;30:1193-200 pubmed publisher
    ..Here, we report that cyclic AMP (cAMP) activated a hyperpolarization-activated Ca(2+) channel in the Pyrus pyrifolia pollen tube using the patch-clamp technique, which resulted in a significant increase in pollen tube ..
  28. Katayama H, Uematsu C. Comparative analysis of chloroplast DNA in Pyrus species: physical map and gene localization. Theor Appl Genet. 2003;106:303-10 pubmed
    A physical map of chloroplast DNA (cpDNA) of pear [Pyrus ussuriensis var. hondoensis (Nakai et Kikuchi) Rehder] was constructed using five restriction enzymes, SalI, XhoI, BamHI, SacI and PstI...
  29. El Sharkawy I, Jones B, Li Z, Lelievre J, Pech J, Latche A. Isolation and characterization of four ethylene perception elements and their expression during ripening in pears (Pyrus communis L) with/without cold requirement. J Exp Bot. 2003;54:1615-25 pubmed
    Pear (Pyrus communis L.) are climacteric fruit: their ripening is associated with a burst of autocatalytic ethylene production...
  30. Zhang C, Tanabe K, Wang S, Tamura F, Yoshida A, Matsumoto K. The impact of cell division and cell enlargement on the evolution of fruit size in Pyrus pyrifolia. Ann Bot. 2006;98:537-43 pubmed
    Dramatic increases in fruit size have accompanied the domestication of Pyrus pyrifolia. To evaluate the contribution of cell division and cell enlargement in the evolution of fruit size, the following study was conducted.
  31. Michalak M, Barciszewska M, Barciszewski J, Plitta B, Chmielarz P. Global changes in DNA methylation in seeds and seedlings of Pyrus communis after seed desiccation and storage. PLoS ONE. 2013;8:e70693 pubmed publisher
    ..In this study we analyzed the 5-methylcytosine (m(5)C) global content of DNA isolated from seeds of common pear (Pyrus communis L.) that had been subjected to extreme desiccation, and the seedlings derived from these seeds...
  32. Triplett L, Zhao Y, Sundin G. Genetic differences between blight-causing Erwinia species with differing host specificities, identified by suppression subtractive hybridization. Appl Environ Microbiol. 2006;72:7359-64 pubmed
  33. Tan X, Zhang L, Wuyun T, Yuan D, Cao Y, Jiang A, et al. Molecular identification of two new self-incompatible alleles (S-alleles) in Chinese pear (Pyrus bretschneideri). Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao. 2007;33:61-70 pubmed
    ..To identify the S-alleles of Chinese pear species (Pyrus pyrifolia, P. bretschneideri, P. ussuriensis and P. sinkiangenis etc...
  34. Lin L, Harnly J. Phenolic compounds and chromatographic profiles of pear skins (Pyrus spp.). J Agric Food Chem. 2008;56:9094-101 pubmed publisher
    ..spectrometric detection (LC-DAD-ESI/MS) was used to analyze the phenolic compounds in the skins of 16 pears (Pyrus spp.). Thirty-four flavonoids and 19 hydroxycinnamates were identified...
  35. Huang L, Gao W, Li X, Zhao W, Huang L, Liu C. Evaluation of the in vivo anti-inflammatory effects of extracts from Pyrus bretschneideri Rehd. J Agric Food Chem. 2010;58:8983-7 pubmed publisher
    b>Pyrus bretschneideri Rehd., as a pharmaceutical supplement, is widely used in northern China to treat respiratory diseases. Our previous studies showed the ethanol extract of P. bretschneideri had significant anti-inflammatory activity...
  36. Xi L, Xu K, Qiao Y, Qu S, Zhang Z, Dai W. Differential expression of ferritin genes in response to abiotic stresses and hormones in pear (Pyrus pyrifolia). Mol Biol Rep. 2011;38:4405-13 pubmed publisher
    ..This showed accumulation of ferritin genes could be operated by different transduction pathways under abiotic stresses and hormones treatments...
  37. De Micco V, Scala M, Aronne G. Effects of simulated microgravity on male gametophyte of Prunus, Pyrus, and Brassica species. Protoplasma. 2006;228:121-6 pubmed
    ..In this experiment, pollen collected from just bloomed flowers of Prunus persica, P. avium, P. domestica, Pyrus communis, and Brassica rapa was subjected to tests assessing its viability by techniques such as fluorochromatic ..
  38. McNally R, Toth I, Cock P, Pritchard L, Hedley P, Morris J, et al. Genetic characterization of the HrpL regulon of the fire blight pathogen Erwinia amylovora reveals novel virulence factors. Mol Plant Pathol. 2012;13:160-73 pubmed publisher
    ..The construction of deletion mutants of three novel HrpL-regulated genes resulted in the identification of additional virulence factors as well as mutants displaying abnormal motility and biofilm phenotypes...
  39. Kakui H, Tsuzuki T, Koba T, Sassa H. Polymorphism of SFBB-gamma and its use for S genotyping in Japanese pear (Pyrus pyrifolia). Plant Cell Rep. 2007;26:1619-25 pubmed
    Japanese pear (Pyrus pyrifolia) exhibits the S-RNase-based gametophytic self-incompatibility where the pollen-part determinant, pollen S, had long remained elusive...
  40. Wang C, Xu G, Jiang X, Chen G, Wu J, Wu H, et al. S-RNase triggers mitochondrial alteration and DNA degradation in the incompatible pollen tube of Pyrus pyrifolia in vitro. Plant J. 2009;57:220-9 pubmed publisher
    Pear (Pyrus pyrifolia L.) has a S-RNase-based gametophytic self-incompatibility (SI) mechanism, and S-RNase has also been implicated in the rejection of self-pollen and genetically identical pollen...
  41. Feng S, Wang Y, Yang S, Xu Y, Chen X. Anthocyanin biosynthesis in pears is regulated by a R2R3-MYB transcription factor PyMYB10. Planta. 2010;232:245-55 pubmed publisher
    ..In this study, a R2R3-MYB transcription factor gene, PyMYB10, was isolated from Asian pear (Pyrus pyrifolia) cv. 'Aoguan'...
  42. Lopez M, Roselló M, Llop P, Ferrer S, Christen R, Gardan L. Erwinia piriflorinigrans sp. nov., a novel pathogen that causes necrosis of pear blossoms. Int J Syst Evol Microbiol. 2011;61:561-7 pubmed publisher
    ..On the basis of these and previous results, the novel isolates represent a novel species of the genus Erwinia, for which the name Erwinia piriflorinigrans sp. nov. is proposed. The type strain is CFBP 5888(T) (=CECT 7348(T))...
  43. Yancheva S, Shlizerman L, Golubowicz S, Yabloviz Z, Perl A, Hanania U, et al. The use of green fluorescent protein (GFP) improves Agrobacterium-mediated transformation of 'Spadona' pear (Pyrus communis L.). Plant Cell Rep. 2006;25:183-9 pubmed
    An efficient and reproducible system for Agrobacterium-mediated transformation of the pear (Pyrus communis L.) cultivar Spadona was developed...
  44. Li L, Ban Z, Li X, Wu M, Wang A, Jiang Y, et al. Differential expression of anthocyanin biosynthetic genes and transcription factor PcMYB10 in pears (Pyrus communis L.). PLoS ONE. 2012;7:e46070 pubmed publisher
    ..In pears (Pyrus communis cv...
  45. Heide O, Prestrud A. Low temperature, but not photoperiod, controls growth cessation and dormancy induction and release in apple and pear. Tree Physiol. 2005;25:109-14 pubmed
    ..and one pear (Pyrus communis L.) commercial rootstock cultivars in controlled environments...
  46. Yamamoto T, Kimura T, Shoda M, Imai T, Saito T, Sawamura Y, et al. Genetic linkage maps constructed by using an interspecific cross between Japanese and European pears. Theor Appl Genet. 2002;106:9-18 pubmed
    Genetic linkage maps of the European pear ( Pyrus communis L...
  47. Wang D, Korban S, Pusey P, Zhao Y. Characterization of the RcsC sensor kinase from Erwinia amylovora and other Enterobacteria. Phytopathology. 2011;101:710-7 pubmed publisher
  48. Ho Q, Verboven P, Verlinden B, Nicolaï B. A model for gas transport in pear fruit at multiple scales. J Exp Bot. 2010;61:2071-81 pubmed publisher
    ..Ripening of the fruit increased the risk of physiological disorders, since increased respiration resulted in anoxia in the fruit centre even under typical storage conditions...
  49. Li M, Li X, Han Z, Shu H, Li T. Molecular analysis of two Chinese pear (Pyrus bretschneideri Rehd.) spontaneous self-compatible mutants, Yan Zhuang and Jin Zhui. Plant Biol (Stuttg). 2009;11:774-83 pubmed publisher
    Yan Zhuang and Jin Zhui are spontaneous bud mutants of Chinese pear (Pyrus bretschneideri Rehd.) from Ya Li...
  50. Zhao Y, He S, Sundin G. The Erwinia amylovora avrRpt2EA gene contributes to virulence on pear and AvrRpt2EA is recognized by Arabidopsis RPS2 when expressed in pseudomonas syringae. Mol Plant Microbe Interact. 2006;19:644-54 pubmed
    ..The results also suggested that although distinct pathogens such as E. amylovora and P. syringae may contain similar effector genes, expression and secretion of these effectors can be under specific regulation by the native pathogen...
  51. Venturi V, Venuti C, Devescovi G, Lucchese C, Friscina A, Degrassi G, et al. The plant pathogen Erwinia amylovora produces acyl-homoserine lactone signal molecules in vitro and in planta. FEMS Microbiol Lett. 2004;241:179-83 pubmed
    ..Given the involvement of AHLs in plant pathogenesis, we speculate that AHL-dependent quorum sensing could play an important role in the regulation of E. amylovora virulence...
  52. Yoshimura Y, Ido A, Iwase K, Matsumoto T, Yamato M. Communities of arbuscular mycorrhizal fungi in the roots of Pyrus pyrifolia var. culta (Japanese pear) in orchards with variable amounts of soil-available phosphorus. Microbes Environ. 2013;28:105-11 pubmed
    We examined the colonization rate and communities of arbuscular mycorrhizal fungi (AMF) in the roots of Pyrus pyrifolia var. culta (Japanese pear) in orchards to investigate the effect of phosphorus (P) fertilization on AMF...
  53. Wang D, Korban S, Zhao Y. The Rcs phosphorelay system is essential for pathogenicity in Erwinia amylovora. Mol Plant Pathol. 2009;10:277-90 pubmed publisher
    ..Furthermore, rcs mutants showed irregular and slightly reduced motility on swarming plates. Together, these results indicate that the Rcs system plays a major role in virulence and survival of E. amylovora in immature pear fruit...
  54. Zhao Y, Sundin G, Wang D. Construction and analysis of pathogenicity island deletion mutants of Erwinia amylovora. Can J Microbiol. 2009;55:457-64 pubmed publisher
    ..These results further confirmed that the one-step inactivation technique can be used to generate large deletions in E. amylovora...
  55. Wu J, Qu H, Shang Z, Tao S, Xu G, Wu J, et al. Reciprocal regulation of Ca²+-activated outward K+ channels of Pyrus pyrifolia pollen by heme and carbon monoxide. New Phytol. 2011;189:1060-8 pubmed publisher
    ..In this study, the effects of heme and carbon monoxide (CO) on the outward K+ (K+(out)) channel in pear (Pyrus pyrifolia) pollen tube protoplasts were characterized using a patch-clamp technique...