Genomes and Genes
Experts and Doctors on plant leaves in Ithaca, New York, United States
Locale: Ithaca, New York, United States
Topic: plant leaves
- Haribal M, Feeny P. Combined roles of contact stimulant and deterrents in assessment of host-plant quality by ovipositing zebra swallowtail butterflies. J Chem Ecol. 2003;29:653-70 pubmed..This behavior may have evolved to take advantage of seasonal variation in the chemistry of their host, A. triloba. ..
- Hacisalihoglu G, Hart J, Wang Y, Cakmak I, Kochian L. Zinc efficiency is correlated with enhanced expression and activity of zinc-requiring enzymes in wheat. Plant Physiol. 2003;131:595-602 pubmed..These results suggest that Zn-efficient genotypes may be able to maintain the functioning of Zn-requiring enzymes under low Zn conditions; thus, biochemical Zn utilization may be an important component of ZE in wheat. ..
- Meng D, Li Y, Bai Y, Li M, Cheng L. Genome-wide identification and characterization of WRKY transcriptional factor family in apple and analysis of their responses to waterlogging and drought stress. Plant Physiol Biochem. 2016;103:71-83 pubmed publisher..Our data provide interesting candidate MdWRKYs for future functional analysis and demonstrate that apple callus is a useful system for characterizing gene expression and function in apple. ..
- Cao J, Earle E. Transgene expression in broccoli (Brassica oleracea var. italica) clones propagated in vitro via leaf explants. Plant Cell Rep. 2003;21:789-96 pubmed..In vitro propagation starting from leaf explants was also successful with other transgenic and non-transgenic Brassica oleracea materials, including broccoli, cauliflower, and collard. ..
- Hou K, Wu W, Gan S. SAUR36, a small auxin up RNA gene, is involved in the promotion of leaf senescence in Arabidopsis. Plant Physiol. 2013;161:1002-9 pubmed publisher..These data suggest that SAUR36 is a positive regulator of leaf senescence and may mediate auxin-induced leaf senescence and that the 3' UTR containing a highly conserved downstream destabilizes the SAUR36 transcripts in young leaves. ..
- Kvitko B, Ramos A, Morello J, Oh H, Collmer A. Identification of harpins in Pseudomonas syringae pv. tomato DC3000, which are functionally similar to HrpK1 in promoting translocation of type III secretion system effectors. J Bacteriol. 2007;189:8059-72 pubmed..syringae T3SS translocon. ..
- Zhou J, Wang X, Lee J, Lee J. Cell-to-cell movement of two interacting AT-hook factors in Arabidopsis root vascular tissue patterning. Plant Cell. 2013;25:187-201 pubmed publisher..Taken together, this study uncovered a novel mechanism in vascular tissue patterning that requires the intercellular trafficking of two interacting transcription factors. ..
- Oh H, Collmer A. Basal resistance against bacteria in Nicotiana benthamiana leaves is accompanied by reduced vascular staining and suppressed by multiple Pseudomonas syringae type III secretion system effector proteins. Plant J. 2005;44:348-59 pubmed publisher..In summary, basal resistance locally alters vascular function and the vascular dye uptake assay should be a useful tool for characterizing effectors that suppress basal resistance...
- Zhang K, Xia X, Zhang Y, Gan S. An ABA-regulated and Golgi-localized protein phosphatase controls water loss during leaf senescence in Arabidopsis. Plant J. 2012;69:667-78 pubmed publisher..These findings suggest that SAG113, a negative regulator of ABA signal transduction, is specifically involved in the control of water loss during leaf senescence. ..
- Xu Y, This D, Pausch R, Vonhof W, Coburn J, Comstock J, et al. Leaf-level water use efficiency determined by carbon isotope discrimination in rice seedlings: genetic variation associated with population structure and QTL mapping. Theor Appl Genet. 2009;118:1065-81 pubmed publisher..The QTL with the largest additive effect came from Kasalath and co-localized with QTL for leaf length, tiller number and nitrogen content. ..
- Reidel E, Rennie E, Amiard V, Cheng L, Turgeon R. Phloem loading strategies in three plant species that transport sugar alcohols. Plant Physiol. 2009;149:1601-8 pubmed publisher..The loading pathways and the mechanisms by which hydrostatic pressure is maintained in the minor vein phloem of these species are discussed...
- Sun J, Fan R, Niklas K, Zhong Q, Yang F, Li M, et al. "Diminishing returns" in the scaling of leaf area vs. dry mass in Wuyi Mountain bamboos, Southeast China. Am J Bot. 2017;104:993-998 pubmed publisher..e., the scaling exponents governing the leaf area vs. dry mass scaling relationship are less than one within and across species and are insensitive to light conditions or elevation. ..
- Barth C, Conklin P. The lower cell density of leaf parenchyma in the Arabidopsis thaliana mutant lcd1-1 is associated with increased sensitivity to ozone and virulent Pseudomonas syringae. Plant J. 2003;35:206-18 pubmed..We hypothesize that LCD1 plays a role in normal leaf development, and that the increased sensitivity to ozone and virulent P. syringae is a secondary effect that presumably results from the lower-cell-density phenotype in lcd1-1. ..
- McGarry R, Barron Y, Carvalho M, Hill J, Gold D, Cheung E, et al. A novel Arabidopsis acetyltransferase interacts with the geminivirus movement protein NSP. Plant Cell. 2003;15:1605-18 pubmed..Its overexpression enhances the efficiency of infection by Cabbage leaf curl virus. These findings suggest a role for protein acetylation in coordinating replication of the viral DNA genome with its export from the nucleus...
- Van Eck J, Snyder A. Eggplant (Solanum melongena L.). Methods Mol Biol. 2006;343:439-47 pubmed..melongena L. var. Black Eggplant. The selectable marker gene used was neomycin phosphotransferase II (nptII) and the selection agent was kanamycin. In vitro grown transformants acclimated readily to greenhouse conditions...
- Chiu L, Li L. Characterization of the regulatory network of BoMYB2 in controlling anthocyanin biosynthesis in purple cauliflower. Planta. 2012;236:1153-64 pubmed..Our findings provide additional information for the complicated regulatory network of anthocyanin biosynthesis and the transcriptional regulation of transcription factors in vegetable crops. ..
- Oh C, Martin G. Effector-triggered immunity mediated by the Pto kinase. Trends Plant Sci. 2011;16:132-40 pubmed publisher..Here, we review the experimental approaches that have been used in these studies, discuss the proteins that have been identified and characterized, and present a current model of Pto-mediated ETI. ..
- Kim J, Olinares P, Oh S, Ghisaura S, Poliakov A, Ponnala L, et al. Modified Clp protease complex in the ClpP3 null mutant and consequences for chloroplast development and function in Arabidopsis. Plant Physiol. 2013;162:157-79 pubmed publisher..Candidate substrates and an explanation for the differential phenotypes between the CLPP3, CLPP4, and CLPP5 null mutants are discussed. ..
- Zhou C, Cai Z, Guo Y, Gan S. An arabidopsis mitogen-activated protein kinase cascade, MKK9-MPK6, plays a role in leaf senescence. Plant Physiol. 2009;150:167-77 pubmed publisher..The premature senescence phenotype is suppressed when MKK9 is overexpressed in the mpk6 null background. When either MKK9 or MPK6 is knocked out, leaf senescence is delayed. ..
- Collier S, Hamel L, Moffett P. Cell death mediated by the N-terminal domains of a unique and highly conserved class of NB-LRR protein. Mol Plant Microbe Interact. 2011;24:918-31 pubmed publisher..This strong correlation in occurrence is suggestive of a functional relationship between these two classes of NB-LRR proteins...
- Woodward J, Abeydeera N, Paul D, Phillips K, Rapala Kozik M, Freeling M, et al. A maize thiamine auxotroph is defective in shoot meristem maintenance. Plant Cell. 2010;22:3305-17 pubmed publisher..These results provide insight into the role of metabolic cofactors, such as thiamine, during the proliferation of stem and initial cell populations. ..
- Chateigner Boutin A, Hanson M. Developmental co-variation of RNA editing extent of plastid editing sites exhibiting similar cis-elements. Nucleic Acids Res. 2003;31:2586-94 pubmed..Our data are consistent with the hypothesis that cluster-specific trans-factors exist and that some are less abundant in roots, limiting the editing extent of certain sites in root plastids. ..
- Zhou F, Mosher S, Tian M, Sassi G, Parker J, Klessig D. The Arabidopsis gain-of-function mutant ssi4 requires RAR1 and SGT1b differentially for defense activation and morphological alterations. Mol Plant Microbe Interact. 2008;21:40-9 pubmed..Thus, multiple environmental factors impact on ssi4 signaling, as has been observed for other constitutive defense mutants and R gene-triggered pathways. ..
- Yoshioka K, Kachroo P, Tsui F, Sharma S, Shah J, Klessig D. Environmentally sensitive, SA-dependent defense responses in the cpr22 mutant of Arabidopsis. Plant J. 2001;26:447-59 pubmed..Interestingly, the SA-dependent phenotypes, but not the SA-independent phenotypes, are suppressed when cpr22 mutants are grown under high humidity. ..
- Joshi M, Loria R. Streptomyces turgidiscabies possesses a functional cytokinin biosynthetic pathway and produces leafy galls. Mol Plant Microbe Interact. 2007;20:751-8 pubmed..fascians. Deletion of the ipt gene in the pathway eliminated gall phenotype. Other symptoms on tobacco included production of hairy roots and de novo meristems. ..
- Traw M, Feeny P. Glucosinolates and trichomes track tissue value in two sympatric mustards. Ecology. 2008;89:763-72 pubmed..Interestingly, <1% of the nitrogen or carbon in leaves was incorporated in glucosinolates, which may explain why glucosinolates lack a consistent response to nitrogen fertilization. ..
- Badel J, Shimizu R, Oh H, Collmer A. A Pseudomonas syringae pv. tomato avrE1/hopM1 mutant is severely reduced in growth and lesion formation in tomato. Mol Plant Microbe Interact. 2006;19:99-111 pubmed..These data suggest that AvrE1 acts within plant cells and promotes lesion formation and that the combined action of AvrE1 and HopM1 is particularly important in promoting bacterial growth in planta. ..
- Kou X, Watkins C, Gan S. Arabidopsis AtNAP regulates fruit senescence. J Exp Bot. 2012;63:6139-47 pubmed publisher..A model involving ABA-AtNAP-controlled stomatal opening in regulating ethylene-stimulated respiration in fruit senescence is presented. ..
- Turgeon R, Medville R. Phloem loading. A reevaluation of the relationship between plasmodesmatal frequencies and loading strategies. Plant Physiol. 2004;136:3795-803 pubmed
- Küpper H, Kochian L. Transcriptional regulation of metal transport genes and mineral nutrition during acclimatization to cadmium and zinc in the Cd/Zn hyperaccumulator, Thlaspi caerulescens (Ganges population). New Phytol. 2010;185:114-29 pubmed publisher..Cadmium-induced changes in cellular expression for ZNT1, ZNT5 and MTP1 could also be part of plant acclimatization to Cd toxicity. Defence against Cd toxicity involved enhanced uptake of magnesium (Mg), calcium (Ca) and sulphur (S)...
- Pedley K, Martin G. Identification of MAPKs and their possible MAPK kinase activators involved in the Pto-mediated defense response of tomato. J Biol Chem. 2004;279:49229-35 pubmed..In vitro analysis demonstrated that LeMKK2 and LeMKK4 each phosphorylate the same subset of three MAPKs. Together these data provide biochemical evidence for the involvement of MAPK cascades in Pto-mediated resistance. ..
- Poland J, Bradbury P, Buckler E, Nelson R. Genome-wide nested association mapping of quantitative resistance to northern leaf blight in maize. Proc Natl Acad Sci U S A. 2011;108:6893-8 pubmed publisher..These results are consistent with the hypothesis that quantitative disease resistance in plants is conditioned by a range of mechanisms and could have considerable mechanistic overlap with basal resistance. ..
- Lundquist P, Poliakov A, Bhuiyan N, Zybailov B, Sun Q, van Wijk K. The functional network of the Arabidopsis plastoglobule proteome based on quantitative proteomics and genome-wide coexpression analysis. Plant Physiol. 2012;158:1172-92 pubmed publisher..We propose a new testable model for the PGs, in which sets of genes are associated with specific PG functions. ..
- San Miguel K, Scott J. The next generation of insecticides: dsRNA is stable as a foliar-applied insecticide. Pest Manag Sci. 2016;72:801-9 pubmed publisher..These new results suggest that foliar application of dsRNA could be a valuable control strategy for some pests. Technological aspects of spraying dsRNA that need to be considered in the future are discussed. ..
- Lin R, Wang H. Two homologous ATP-binding cassette transporter proteins, AtMDR1 and AtPGP1, regulate Arabidopsis photomorphogenesis and root development by mediating polar auxin transport. Plant Physiol. 2005;138:949-64 pubmed..Together, our results suggest that AtMDR1 and AtPGP1 regulate Arabidopsis (Arabidopsis thaliana) photomorphogenesis and multiple aspects of root development by mediating polar auxin transport...
- Meng F, Altier C, Martin G. Salmonella colonization activates the plant immune system and benefits from association with plant pathogenic bacteria. Environ Microbiol. 2013;15:2418-30 pubmed publisher..Our results suggest that Salmonella benefits from the immune-suppressing effects of plant pathogenic bacteria, and this growth enhancement may increase the risk of salmonellosis. ..
- Niklas K. Climbing plants: attachment and the ascent for light. Curr Biol. 2011;21:R199-201 pubmed publisher..How do vines climb upward and harvest sunlight? A detailed study of one species (Galium aparine L.) shows that leaf hairs (trichomes) provide one solution that solves both tasks simultaneously...
- Kim C, Meskauskiene R, Zhang S, Lee K, Lakshmanan Ashok M, Blajecka K, et al. Chloroplasts of Arabidopsis are the source and a primary target of a plant-specific programmed cell death signaling pathway. Plant Cell. 2012;24:3026-39 pubmed publisher..Our findings support an as yet unreported signaling role of (1)O(2) in the wild type exposed to mild light stress that invokes photoinhibition of photosystem II without causing photooxidative damage of the plant...
- Zhang K, Halitschke R, Yin C, Liu C, Gan S. Salicylic acid 3-hydroxylase regulates Arabidopsis leaf longevity by mediating salicylic acid catabolism. Proc Natl Acad Sci U S A. 2013;110:14807-12 pubmed publisher..The research also provides strong molecular genetic evidence for an important role of SA in regulating the onset and rate of leaf senescence...
- Lundquist P, Poliakov A, Giacomelli L, Friso G, Appel M, McQuinn R, et al. Loss of plastoglobule kinases ABC1K1 and ABC1K3 causes conditional degreening, modified prenyl-lipids, and recruitment of the jasmonic acid pathway. Plant Cell. 2013;25:1818-39 pubmed publisher..Thus, the ABC1K1/3 complex contributes to PG function in prenyl-lipid metabolism, stress response, and thylakoid remodeling. ..
- Goggin F, Medville R, Turgeon R. Phloem loading in the tulip tree. Mechanisms and evolutionary implications. Plant Physiol. 2001;125:891-9 pubmed..The evidence is most consistent with the presence of an apoplastic component to phloem loading in this species, contrary to speculation that the more basal members of the angiosperms load by an entirely symplastic mechanism...
- Johnston R, Candela H, Hake S, Foster T. The maize milkweed pod1 mutant reveals a mechanism to modify organ morphology. Genesis. 2010;48:416-23 pubmed publisher..We propose that the adaxial-abaxial patterning mechanism has been co-opted during evolution to generate diverse organ morphologies. ..
- Hunt Joshi T, Blossey B. Interactions of root and leaf herbivores on purple loosestrife (Lythrum salicaria). Oecologia. 2005;142:554-63 pubmed..Interspecific interactions between G. calmariensis and H. transversovittatus are possible and may negatively affect either species, but this is unlikely to occur unless heavy feeding damage results in partial or complete plant death...
- L pez Solanilla E, Bronstein P, Schneider A, Collmer A. HopPtoN is a Pseudomonas syringae Hrp (type III secretion system) cysteine protease effector that suppresses pathogen-induced necrosis associated with both compatible and incompatible plant interactions. Mol Microbiol. 2004;54:353-65 pubmed publisher..These observations reveal that HopPtoN is a TTSS effector that can suppress plant cell death events in both compatible and incompatible interactions...
- Rudella A, Friso G, Alonso J, Ecker J, van Wijk K. Downregulation of ClpR2 leads to reduced accumulation of the ClpPRS protease complex and defects in chloroplast biogenesis in Arabidopsis. Plant Cell. 2006;18:1704-21 pubmed..We conclude that ClpR2 cannot be functionally replaced by other ClpP/R homologues and that the ClpPRS complex is central to chloroplast biogenesis, thylakoid protein homeostasis, and plant development. ..
- Steponkus P, Uemura M, Joseph R, Gilmour S, Thomashow M. Mode of action of the COR15a gene on the freezing tolerance of Arabidopsis thaliana. Proc Natl Acad Sci U S A. 1998;95:14570-5 pubmed
- Takacs E, Li J, Du C, Ponnala L, Janick Buckner D, Yu J, et al. Ontogeny of the maize shoot apical meristem. Plant Cell. 2012;24:3219-34 pubmed..This study provides insight into the molecular genetics of SAM initiation and function in maize...
- Slewinski T, Anderson A, Zhang C, Turgeon R. Scarecrow plays a role in establishing Kranz anatomy in maize leaves. Plant Cell Physiol. 2012;53:2030-7 pubmed publisher..Further characterization of this signal transduction pathway should facilitate the transfer of the C(4) trait into C(3) crop species, including rice...
- Roeder A. When and where plant cells divide: a perspective from computational modeling. Curr Opin Plant Biol. 2012;15:638-44 pubmed publisher..e. the minimal surface area) is the most probable division plane. ..
- Sacco M, Koropacka K, Grenier E, Jaubert M, Blanchard A, Goverse A, et al. The cyst nematode SPRYSEC protein RBP-1 elicits Gpa2- and RanGAP2-dependent plant cell death. PLoS Pathog. 2009;5:e1000564 pubmed publisher..These results suggest a two-tiered process wherein RanGAP2 mediates an initial interaction with pathogen-delivered Gp-RBP-1 proteins but where the Gpa2 LRR determines which of these interactions will be productive...
- Park S, Kaimoyo E, Kumar D, Mosher S, Klessig D. Methyl salicylate is a critical mobile signal for plant systemic acquired resistance. Science. 2007;318:113-6 pubmed publisher..Therefore, we conclude that MeSA is a SAR signal in tobacco...
- Ayre B, Turgeon R. Graft transmission of a floral stimulant derived from CONSTANS. Plant Physiol. 2004;135:2271-8 pubmed..Our results suggest that a CO-derived signal(s), or possibly CO itself, fits the definition of the hypothetical flowering stimulant, florigen. ..
- Lin N, Martin G. An avrPto/avrPtoB mutant of Pseudomonas syringae pv. tomato DC3000 does not elicit Pto-mediated resistance and is less virulent on tomato. Mol Plant Microbe Interact. 2005;18:43-51 pubmed..Our results indicate that AvrPto and AvrPtoB have phenotypically redundant avirulence activity on Pto-expressing tomato and additive virulence activities on susceptible tomato plants. ..
- Abramovitch R, Kim Y, Chen S, Dickman M, Martin G. Pseudomonas type III effector AvrPtoB induces plant disease susceptibility by inhibition of host programmed cell death. EMBO J. 2003;22:60-9 pubmed..Thus, our results indicate that a type III effector can induce plant susceptibility to bacterial infection by inhibiting host PCD. ..
- Ytterberg A, Peltier J, van Wijk K. Protein profiling of plastoglobules in chloroplasts and chromoplasts. A surprising site for differential accumulation of metabolic enzymes. Plant Physiol. 2006;140:984-97 pubmed
- Majeran W, Friso G, Asakura Y, Qu X, Huang M, Ponnala L, et al. Nucleoid-enriched proteomes in developing plastids and chloroplasts from maize leaves: a new conceptual framework for nucleoid functions. Plant Physiol. 2012;158:156-89 pubmed publisher..Details of protein identification and annotation are provided in the Plant Proteome Database...