Menke, F.L.H., Pelt, J.A. Van, Pieterse, C.M.J., Klessig, D.F.
Here, we use a loss-of-function approach to demonstrate that the Arabidopsis (Arabidopsis thaliana) mitogen-activated protein kinase (MAPK) MPK6 plays a role in resistance to certain pathogens....
In recent years, it has become apparent that salicylic acid (SA) plays an important role in plant defense responses to pathogen attack. Previous studies have suggested that one of SA's mechanisms of...
Conrath, U, Chen, Z, Ricigliano, J R, Klessig, D F
2,6-Dichloroisonicotinic acid (INA) and salicylic acid (SA) are potent inducers of plant defense responses including the synthesis of pathogenesis-related (PR) proteins and the development of...
Purification and characterization of a soluble salicylic acid-binding protein from tobacco.
Chen, Z, Ricigliano, J W, Klessig, D F
Previously, we identified a soluble salicylic acid (SA)-binding protein (SABP) in tobacco whose properties suggest that it may play a role in transmitting the SA signal during plant defense...
It has recently been demonstrated that salicylic acid (SA) may serve as an endogenous signal molecule in the induction of systemic acquired resistance in tobacco and cucumber. In addition, SA is an...
Two purified proteinaceous fungal elicitors, parasiticein (an alpha elicitin) and cryptogein (a beta elicitin), as well as a fungal cell wall-derived carbohydrate elicitor all rapidly activated a...
Clarke, J D, Liu, Y, Klessig, D F, Dong, X
In Arabidopsis, NPR1 mediates the salicylic acid (SA)-induced expression of pathogenesis-related (PR) genes and systemic acquired resistance (SAR). Here, we report the identification of another...
PAD4 functions upstream from salicylic acid to control defense responses in Arabidopsis.
Zhou, N, Tootle, T L, Tsui, F, Klessig, D F, Glazebrook, J
The Arabidopsis PAD4 gene was previously shown to be required for synthesis of camalexin in response to infection by the virulent bacterial pathogen Pseudomonas syringae pv maculicola ES4326 but not...
Overexpression of Pto activates defense responses and confers broad resistance.
Tang, X, Xie, M, Kim, Y J, Zhou, J, Klessig, D F, Martin, G B
The tomato disease resistance (R) gene Pto specifies race-specific resistance to the bacterial pathogen Pseudomonas syringae pv tomato carrying the avrPto gene. Pto encodes a serine/threonine protein...
Shah, J, Kachroo, P, Klessig, D F
The Arabidopsis NPR1 gene was previously shown to be required for the salicylic acid (SA)- and benzothiadiazole (BTH)-induced expression of pathogenesis-related (PR) genes and systemic acquired...
Romeis, T, Piedras, P, Zhang, S, Klessig, D F, Hirt, H, Jones, J D
The Cf-9 resistance (R) gene from tomato confers resistance to the fungal pathogen Cladosporium fulvum expressing the corresponding, pathogen-derived avirulence gene product Avr9. To understand how...
Salicylic acid activates a 48-kD MAP kinase in tobacco.
The involvement of phosphorylation/dephosphorylation in the salicylic acid (SA) signal transduction pathway leading to pathogenesis-related gene induction has previously been demonstrated using...
The cpr5 mutant of Arabidopsis expresses both NPR1-dependent and NPR1-independent resistance.
Bowling, S A, Clarke, J D, Liu, Y, Klessig, D F, Dong, X
The cpr5 mutant was identified from a screen for constitutive expression of systemic acquired resistance (SAR). This single recessive mutation also leads to spontaneous expression of chlorotic...
Identification of a Soluble, High-Affinity Salicylic Acid-Binding Protein in Tobacco.
Salicylic acid (SA) is a key component in the signal transduction pathway(s), leading to the activation of certain defense responses in plants after pathogen attack. Previous studies have identified...
Chen, Z., Iyer, S., Caplan, A., Klessig, D. F., Fan, B.
We previously proposed that salicylic acid (SA)-sensitive catalases serve as biological targets of SA in plant defense responses. To further examine the role of SA-sensitive catalases, we have...
Is the High Basal Level of Salicylic Acid Important for Disease Resistance in Potato?
Yu, D., Liu, Y., Fan, B., Klessig, D. F., Chen, Z.
Potato (Solanum tuberosum) plants contain a high basal level of salicylic acid (SA), the role of which in disease resistance is currently unclear. Here we report that, in spite of a drastic reduction...
Sanchez-Casas, P., Klessig, D. F.
Recently, it has been demonstrated that the salicylic acid (SA)-binding protein (SABP) from tobacco (Nicotiana tabacum) is a SA-inhibitable catalase (Z. Chen, H. Silva, D.F. Klessig [1993] Science...
Berry, J O, Breiding, D E, Klessig, D F
In cotyledons of 6-day-old amaranth seedlings, the large subunit (LSU) and the small subunit (SSU) polypeptides of ribulose-1,5-bisphosphate carboxylase are not synthesized in the absence of light....
A mutation in Arabidopsis that leads to constitutive expression of systemic acquired resistance.
Bowling, S A, Guo, A, Cao, H, Gordon, A S, Klessig, D F, Dong, X
Systemic acquired resistance (SAR) is a nonspecific defense response in plants that is associated with an increase in the endogenous level of salicylic acid (SA) and elevated expression of...
Cleghon, V, Voelkerding, K, Morin, N, Delsert, C, Klessig, D F
The isolation and characterization of an adenovirus mutant, Ad5dl802r1, containing two independent deletions in the 72-kilodalton (kDa) DNA-binding protein (DBP) gene is described. The two deletions...
Synthesis of the fiber protein of human adenovirus serotype 2 (Ad2) is 100-fold lower in abortively infected monkey cells, compared with productive infections, despite only a 5- to 10-fold reduction...
Morin, N, Delsert, C, Klessig, D F
The multifunctional adenovirus single-strand DNA-binding protein (DBP) is highly phosphorylated. Its phosphorylation sites are located in the amino-terminal domain of the protein, and its DNA- and...
Johnston, J M, Anderson, K P, Klessig, D F
The block to efficient growth of human adenovirus in monkey cells results in depressed synthesis of late viral polypeptides. This is attributable in part to reduced steady-state levels of the...
A genetic system is described which allows the isolation and propagation of adenovirus mutants containing lesions in early region 2A (E2A), the gene encoding the multifunctional adenovirus...
Silverman, L, Anderson, K P, Klessig, D F
In abortive infections of monkey cells by Ad2+ND5, the synthesis of the simian virus 40-specific 42,000-molecular-weight (42K) protein was reduced approximately 10-fold compared with a productive...
Klockmann, U, Klessig, D F, Deppert, W
Human adenoviruses fail to multiply effectively in monkey cells. The block to the replication of these viruses can be overcome by coinfection with simian virus 40 (SV40) or when part of the SV40...
Brough, D E, Rice, S A, Sell, S, Klessig, D F
Human adenovirus fails to multiply efficiently in monkey cells owing to a block to late viral gene expression. Ad2hr400 through Ad2hr403 are a set of host range (hr) mutants which were selected for...
Anderson, C W, Hardy, M M, Dunn, J J, Klessig, D F
Four independent, spontaneous mutants of the adenovirus type 2-simian virus 40 hybrid Ad2+ND3 that allow efficient growth in monkey cells were isolated previously (C. W. Anderson, Virology...
The adenovirus type 2 (Ad2) host range mutant Ad2hr400 grows efficiently in cultured monkey cells at 37 degrees C, but is cold sensitive for plaque formation and late gene expression at 32.5 degrees...
A variety of mRNAs, including adenovirus-specified mRNAs isolated from infected human cells, were translated with similar efficiencies in S10 cell-free lysates prepared from productively and...
Klessig, D F, Quinlan, M P, Grodzicker, T
We introduced into tk- human 143 cells adenovirus type 2 (Ad2) genes by transformation with a plasmid (p711) containing both Ad2 sequences and the herpes simplex virus type 1 (HSV-1) tk gene. p711...
Northern (RNA) blot analysis has been used to show that synthesis of early mRNA species is similar in monkey cells productively or abortively infected with human adenovirus. mRNA species from all...
Identification of two nuclear subclasses of the adenovirus type 5-encoded DNA-binding protein.
The synthesis, accumulation, and subcellular distribution of the adenovirus serotype 5 DNA-binding protein (DBP) has been examined during the infectious cycle in HeLa cells. With the onset of viral...
Messenger RNA encoding the fiber protein of the human adenovirus serotype 2 (Ad2) capsid is inefficiently translated in abortively infected African green monkey kidney cells. The amount of fiber mRNA...
Block to multiplication of adenovirus serotype 2 in monkey cells.
The block to adenovirus 2 (Ad2) multiplication in monkey cells can be overcome by coinfection with simian virus 40 (SV40). To identify this block we have compared the synthesis of Ad2 proteins in...
Delsert, C, Morin, N, Klessig, D F
Expression of the L1 region of adenovirus is temporally regulated by alternative splicing to yield two major RNAs encoding the 52- to 55-kilodalton (52-55K) and IIIa polypeptides. The distal acceptor...
Morin, N, Delsert, C, Klessig, D F
The adenovirus DNA-binding protein (DBP) is an abundant multifunctional protein located primarily in the nuclei of infected cells. To define sequences involved in nuclear transport of DBP, a series...
Synthesis and localization of pathogenesis-related proteins in tobacco.
Carr, J P, Dixon, D C, Nikolau, B J, Voelkerding, K V, Klessig, D F
The PR1 family of pathogenesis-related proteins from tobacco (Nicotiana tabacum L.) leaves is induced by a variety of pathogenic and chemical agents and is associated with resistance to tobacco...
Berry, J O, Nikolau, B J, Carr, J P, Klessig, D F
The regulation of expression of the genes encoding the large subunit (LSU) and small subunit (SSU) of ribulose 1,5-bisphosphate carboxylase (RuBPCase) was examined in 1- through 8-day-old, dark-grown...
Anderson, K P, Wong, E A, Klessig, D F
In monkey cells abortively infected with human adenovirus serotype 2, the synthesis of the fiber polypeptide of the virion capsid is reduced by at least a factor of 100 when compared with that in...
Berry, J O, Nikolau, B J, Carr, J P, Klessig, D F
The regulation of the genes encoding the large and small subunits of ribulose 1,5-bisphosphate carboxylase was examined in amaranth cotyledons in response to changes in illumination. When dark-grown...
Klessig, D F, Brough, D E, Cleghon, V
The DNA-binding protein (DBP) encoded by human adenoviruses is a multifunctional polypeptide which plays a central role in regulating the expression of the viral genes. To gain a better understanding...
Association of the adenovirus DNA-binding protein with RNA both in vitro and in vivo.
The multifunctional DNA-binding protein (DBP) encoded by human adenovirus binds RNA. The association of purified DBP with RNA in vitro was demonstrated by using either a gel filtration or a filter...
Dixon, D C, Cutt, J R, Klessig, D F
Several biochemical and localization studies have shown that the acidic isoforms of the tobacco pathogenesis-related (PR) proteins, PR-1a, -1b and -1c are secreted to the extracellular spaces of...
Isolation of a variant of human adenovirus serotype 2 that multiplies efficiently on monkey cells.
A variant of adenovirus serotype 2 (Ad2) that overcomes the block to multiplication of the wild-type Ad2 on monkey cells is described. The variant was selected, after nitrous acid mutagenesis, by...
In a previous report (Klessig, J. Virol. 21:1243--1246, 1977), the isolation of a variant (H2hr400) of adenovirus serotype 2 (Ad2) that overcomes the block to multiplication of wild-type Ad2 in...
In recent years, it has become apparent that salicylic acid (SA) plays an important role in plant defense responses to pathogen attack. Previous studies have suggested that one of SA's mechanisms of...
Conrath, U, Chen, Z, Ricigliano, J R, Klessig, D F
2,6-Dichloroisonicotinic acid (INA) and salicylic acid (SA) are potent inducers of plant defense responses including the synthesis of pathogenesis-related (PR) proteins and the development of...
Purification and characterization of a soluble salicylic acid-binding protein from tobacco.
Chen, Z, Ricigliano, J W, Klessig, D F
Previously, we identified a soluble salicylic acid (SA)-binding protein (SABP) in tobacco whose properties suggest that it may play a role in transmitting the SA signal during plant defense...
It has recently been demonstrated that salicylic acid (SA) may serve as an endogenous signal molecule in the induction of systemic acquired resistance in tobacco and cucumber. In addition, SA is an...
Two purified proteinaceous fungal elicitors, parasiticein (an alpha elicitin) and cryptogein (a beta elicitin), as well as a fungal cell wall-derived carbohydrate elicitor all rapidly activated a...
Clarke, J D, Liu, Y, Klessig, D F, Dong, X
In Arabidopsis, NPR1 mediates the salicylic acid (SA)-induced expression of pathogenesis-related (PR) genes and systemic acquired resistance (SAR). Here, we report the identification of another...
PAD4 functions upstream from salicylic acid to control defense responses in Arabidopsis.
Zhou, N, Tootle, T L, Tsui, F, Klessig, D F, Glazebrook, J
The Arabidopsis PAD4 gene was previously shown to be required for synthesis of camalexin in response to infection by the virulent bacterial pathogen Pseudomonas syringae pv maculicola ES4326 but not...
Overexpression of Pto activates defense responses and confers broad resistance.
Tang, X, Xie, M, Kim, Y J, Zhou, J, Klessig, D F, Martin, G B
The tomato disease resistance (R) gene Pto specifies race-specific resistance to the bacterial pathogen Pseudomonas syringae pv tomato carrying the avrPto gene. Pto encodes a serine/threonine protein...
Shah, J, Kachroo, P, Klessig, D F
The Arabidopsis NPR1 gene was previously shown to be required for the salicylic acid (SA)- and benzothiadiazole (BTH)-induced expression of pathogenesis-related (PR) genes and systemic acquired...
Romeis, T, Piedras, P, Zhang, S, Klessig, D F, Hirt, H, Jones, J D
The Cf-9 resistance (R) gene from tomato confers resistance to the fungal pathogen Cladosporium fulvum expressing the corresponding, pathogen-derived avirulence gene product Avr9. To understand how...
Salicylic acid activates a 48-kD MAP kinase in tobacco.
The involvement of phosphorylation/dephosphorylation in the salicylic acid (SA) signal transduction pathway leading to pathogenesis-related gene induction has previously been demonstrated using...
The cpr5 mutant of Arabidopsis expresses both NPR1-dependent and NPR1-independent resistance.
Bowling, S A, Clarke, J D, Liu, Y, Klessig, D F, Dong, X
The cpr5 mutant was identified from a screen for constitutive expression of systemic acquired resistance (SAR). This single recessive mutation also leads to spontaneous expression of chlorotic...
Identification of a Soluble, High-Affinity Salicylic Acid-Binding Protein in Tobacco.
Salicylic acid (SA) is a key component in the signal transduction pathway(s), leading to the activation of certain defense responses in plants after pathogen attack. Previous studies have identified...
Chen, Z., Iyer, S., Caplan, A., Klessig, D. F., Fan, B.
We previously proposed that salicylic acid (SA)-sensitive catalases serve as biological targets of SA in plant defense responses. To further examine the role of SA-sensitive catalases, we have...
Is the High Basal Level of Salicylic Acid Important for Disease Resistance in Potato?
Yu, D., Liu, Y., Fan, B., Klessig, D. F., Chen, Z.
Potato (Solanum tuberosum) plants contain a high basal level of salicylic acid (SA), the role of which in disease resistance is currently unclear. Here we report that, in spite of a drastic reduction...
Sanchez-Casas, P., Klessig, D. F.
Recently, it has been demonstrated that the salicylic acid (SA)-binding protein (SABP) from tobacco (Nicotiana tabacum) is a SA-inhibitable catalase (Z. Chen, H. Silva, D.F. Klessig [1993] Science...
Berry, J O, Breiding, D E, Klessig, D F
In cotyledons of 6-day-old amaranth seedlings, the large subunit (LSU) and the small subunit (SSU) polypeptides of ribulose-1,5-bisphosphate carboxylase are not synthesized in the absence of light....
A mutation in Arabidopsis that leads to constitutive expression of systemic acquired resistance.
Bowling, S A, Guo, A, Cao, H, Gordon, A S, Klessig, D F, Dong, X
Systemic acquired resistance (SAR) is a nonspecific defense response in plants that is associated with an increase in the endogenous level of salicylic acid (SA) and elevated expression of...
Cleghon, V, Voelkerding, K, Morin, N, Delsert, C, Klessig, D F
The isolation and characterization of an adenovirus mutant, Ad5dl802r1, containing two independent deletions in the 72-kilodalton (kDa) DNA-binding protein (DBP) gene is described. The two deletions...
Synthesis of the fiber protein of human adenovirus serotype 2 (Ad2) is 100-fold lower in abortively infected monkey cells, compared with productive infections, despite only a 5- to 10-fold reduction...
Morin, N, Delsert, C, Klessig, D F
The multifunctional adenovirus single-strand DNA-binding protein (DBP) is highly phosphorylated. Its phosphorylation sites are located in the amino-terminal domain of the protein, and its DNA- and...
Johnston, J M, Anderson, K P, Klessig, D F
The block to efficient growth of human adenovirus in monkey cells results in depressed synthesis of late viral polypeptides. This is attributable in part to reduced steady-state levels of the...
A genetic system is described which allows the isolation and propagation of adenovirus mutants containing lesions in early region 2A (E2A), the gene encoding the multifunctional adenovirus...
Silverman, L, Anderson, K P, Klessig, D F
In abortive infections of monkey cells by Ad2+ND5, the synthesis of the simian virus 40-specific 42,000-molecular-weight (42K) protein was reduced approximately 10-fold compared with a productive...
Klockmann, U, Klessig, D F, Deppert, W
Human adenoviruses fail to multiply effectively in monkey cells. The block to the replication of these viruses can be overcome by coinfection with simian virus 40 (SV40) or when part of the SV40...
Brough, D E, Rice, S A, Sell, S, Klessig, D F
Human adenovirus fails to multiply efficiently in monkey cells owing to a block to late viral gene expression. Ad2hr400 through Ad2hr403 are a set of host range (hr) mutants which were selected for...
Anderson, C W, Hardy, M M, Dunn, J J, Klessig, D F
Four independent, spontaneous mutants of the adenovirus type 2-simian virus 40 hybrid Ad2+ND3 that allow efficient growth in monkey cells were isolated previously (C. W. Anderson, Virology...
The adenovirus type 2 (Ad2) host range mutant Ad2hr400 grows efficiently in cultured monkey cells at 37 degrees C, but is cold sensitive for plaque formation and late gene expression at 32.5 degrees...
A variety of mRNAs, including adenovirus-specified mRNAs isolated from infected human cells, were translated with similar efficiencies in S10 cell-free lysates prepared from productively and...
Klessig, D F, Quinlan, M P, Grodzicker, T
We introduced into tk- human 143 cells adenovirus type 2 (Ad2) genes by transformation with a plasmid (p711) containing both Ad2 sequences and the herpes simplex virus type 1 (HSV-1) tk gene. p711...
Northern (RNA) blot analysis has been used to show that synthesis of early mRNA species is similar in monkey cells productively or abortively infected with human adenovirus. mRNA species from all...
Identification of two nuclear subclasses of the adenovirus type 5-encoded DNA-binding protein.
The synthesis, accumulation, and subcellular distribution of the adenovirus serotype 5 DNA-binding protein (DBP) has been examined during the infectious cycle in HeLa cells. With the onset of viral...
Messenger RNA encoding the fiber protein of the human adenovirus serotype 2 (Ad2) capsid is inefficiently translated in abortively infected African green monkey kidney cells. The amount of fiber mRNA...
Block to multiplication of adenovirus serotype 2 in monkey cells.
The block to adenovirus 2 (Ad2) multiplication in monkey cells can be overcome by coinfection with simian virus 40 (SV40). To identify this block we have compared the synthesis of Ad2 proteins in...
Delsert, C, Morin, N, Klessig, D F
Expression of the L1 region of adenovirus is temporally regulated by alternative splicing to yield two major RNAs encoding the 52- to 55-kilodalton (52-55K) and IIIa polypeptides. The distal acceptor...
Morin, N, Delsert, C, Klessig, D F
The adenovirus DNA-binding protein (DBP) is an abundant multifunctional protein located primarily in the nuclei of infected cells. To define sequences involved in nuclear transport of DBP, a series...
Synthesis and localization of pathogenesis-related proteins in tobacco.
Carr, J P, Dixon, D C, Nikolau, B J, Voelkerding, K V, Klessig, D F
The PR1 family of pathogenesis-related proteins from tobacco (Nicotiana tabacum L.) leaves is induced by a variety of pathogenic and chemical agents and is associated with resistance to tobacco...
Berry, J O, Nikolau, B J, Carr, J P, Klessig, D F
The regulation of expression of the genes encoding the large subunit (LSU) and small subunit (SSU) of ribulose 1,5-bisphosphate carboxylase (RuBPCase) was examined in 1- through 8-day-old, dark-grown...
Anderson, K P, Wong, E A, Klessig, D F
In monkey cells abortively infected with human adenovirus serotype 2, the synthesis of the fiber polypeptide of the virion capsid is reduced by at least a factor of 100 when compared with that in...
Berry, J O, Nikolau, B J, Carr, J P, Klessig, D F
The regulation of the genes encoding the large and small subunits of ribulose 1,5-bisphosphate carboxylase was examined in amaranth cotyledons in response to changes in illumination. When dark-grown...
Klessig, D F, Brough, D E, Cleghon, V
The DNA-binding protein (DBP) encoded by human adenoviruses is a multifunctional polypeptide which plays a central role in regulating the expression of the viral genes. To gain a better understanding...
Association of the adenovirus DNA-binding protein with RNA both in vitro and in vivo.
The multifunctional DNA-binding protein (DBP) encoded by human adenovirus binds RNA. The association of purified DBP with RNA in vitro was demonstrated by using either a gel filtration or a filter...
Dixon, D C, Cutt, J R, Klessig, D F
Several biochemical and localization studies have shown that the acidic isoforms of the tobacco pathogenesis-related (PR) proteins, PR-1a, -1b and -1c are secreted to the extracellular spaces of...
Isolation of a variant of human adenovirus serotype 2 that multiplies efficiently on monkey cells.
A variant of adenovirus serotype 2 (Ad2) that overcomes the block to multiplication of the wild-type Ad2 on monkey cells is described. The variant was selected, after nitrous acid mutagenesis, by...
In a previous report (Klessig, J. Virol. 21:1243--1246, 1977), the isolation of a variant (H2hr400) of adenovirus serotype 2 (Ad2) that overcomes the block to multiplication of wild-type Ad2 in...