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At least 1,567 records · Page 87

Spatial biomarker of disease and detection of spatial organization of cellular receptors

A signature of a condition of a live cell is established in an assay that allows distribution of the receptors on the cell surface in response to binding a ligand. The receptors can be optically detected and quantified to provide a value for the condition, Test drugs can be screened for therapeutic potential in the assay: a potentially efficacious drug is identified by an ability to modulate an established signature. The receptor distribution signature can be corroborated with an mRNA expression profile of several genes, indicating, for example, metastasis.

59 BASIC BIOLOGICAL SCIENCES↗

Increasing leaf longevity and disease resistance by altering salicylic acid catabolism

The present invention relates to a transgenic plant having an altered level of salicylic acid 3-hydroxylase ("S3H") protein, compared to that of a non-transgenic plant, where the transgenic plant displays an altered leaf senescence phenotype, relative to a non-transgenic plant. The present invention relates to a mutant plant comprising an inactivated gene encoding S3H protein, where the mutant plant displays a premature or precocious leaf senescence phenotype, relative to a non-mutant plant. The present invention also relates to methods for promoting premature or precocious leaf senescence in a plant, delaying leaf senescence in a plant, and making a mutant plant having a decreased level of S3H protein compared to that of a non-mutant plant, where the mutant plant displays a premature or precocious leaf senescence phenotype relative to a non-mutant plant. The present invention also relates to inducing or promoting pathogen resistance in plants.

59 BASIC BIOLOGICAL SCIENCES↗

Arabidopsis nonhost resistance gene(s) and use thereof to engineer disease resistant plants

The present invention relates to a method of increasing resistance against plant pathogens, particularly Phytophthora and Fusarium virguliforme in transgenic plants and/or plant cells, through the use of non host resistance nucleic acid molecules isolated from Arabidopsis. In these plants, at least one nonhost Arabidopsis resistance protein is introduced in comparison to the wild-type plants to confer resistance to plant pathogens. The invention relates to transgenic plants and/or plant cells having an increased resistance against plant pathogens particularly Phytophthora and Fusarium virguliforme to expression vectors, transformed plants and plant cells as well as the use of such plants in a plant breeding program.

Bhattacharyya, Madan K.↗