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Hydrogen peroxide is a common signal for darkness and ABA-induced stomatal closure in Pisum sativum L. (2004)
Journal Article

The requirement for hydrogen peroxide (H2O2) generation and action during stomatal closure induced by darkness and abscisic acid (ABA) was investigated in pea (Pisum sativum L.). Stomatal closure induced by darkness or ABA was inhibited by the H2O2-s... Read More about Hydrogen peroxide is a common signal for darkness and ABA-induced stomatal closure in Pisum sativum L..

A new role for an old enzyme: Nitrate reductase-mediated nitric oxide generation is required for abscisic acid-induced stomatal closure in Arabidopsis thaliana (2002)
Journal Article

The plant hormone abscisic acid (ABA), synthesized in response to water-deficit stress, induces stomatal closure via activation of complex signaling cascades. Recent work has established that nitric oxide (NO) is a key signaling molecule mediating AB... Read More about A new role for an old enzyme: Nitrate reductase-mediated nitric oxide generation is required for abscisic acid-induced stomatal closure in Arabidopsis thaliana.

Molecular characterization of avrPphD, a widely-distributed gene from Pseudomonas syringae pv. phaseolicola involved in non-host recognition by pea (Pisum sativum) (2001)
Journal Article

A genomic library clone, pPPY40, from Pseudomonas syringae pv. phaseolicola was previously shown to consist of two regions: region I potentially encoded an avirulence gene involved in non-host recognition in pea and region II contained a replicase ge... Read More about Molecular characterization of avrPphD, a widely-distributed gene from Pseudomonas syringae pv. phaseolicola involved in non-host recognition by pea (Pisum sativum).

Excision from tRNA genes of a large chromosomal region, carrying avrPphB, associated with race change in the bean pathogen, Pseudomonas syringae pv. phaseolicola (2000)
Journal Article

Pseudomonas syringae pv. phaseolicola (Pph) race 4 strain 1302A carries avirulence gene avrPphB. Strain RJ3, a sectoral variant from a 1302A culture, exhibited an extended host range in cultivars of bean and soybean resulting from the absence of avrP... Read More about Excision from tRNA genes of a large chromosomal region, carrying avrPphB, associated with race change in the bean pathogen, Pseudomonas syringae pv. phaseolicola.

A dispensable region of the chromosome which is associated with an avirulence gene in Pseudomonas syringae pv. pisi (1999)
Journal Article

Pseudomonas syringae pv. pisi comprises a number of races which fall into two phylogenetically distinct groups (designated I and II). Races are based on cultivar specificity in the host plant, pea (Pisum sativum), and are specified by the presence of... Read More about A dispensable region of the chromosome which is associated with an avirulence gene in Pseudomonas syringae pv. pisi.

Specific oligonucleotide primers for the identification of Pseudomonas syringae pv. pisi yield one of two possible DNA fragments by PCR amplification: evidence for phylogenetic divergence (1996)
Journal Article

Two unique DNA fragments, generated by RAPD-PCR, were used as probes against dot-blots of representative isolates of the seven races of pseudomonas syringae pv. pisi. DNA from each isolate hybridized only to one of the two probes. Fragments identifie... Read More about Specific oligonucleotide primers for the identification of Pseudomonas syringae pv. pisi yield one of two possible DNA fragments by PCR amplification: evidence for phylogenetic divergence.