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Real-Time Genetic Manipulations of the Cytokinin Pathway: A Tool for Laboratory and Field Studies.

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Although many established tools for cytokinin (CK) pathway manipulations are well suitable for the analysis of molecular interactions, their use on a whole plant scale is often limited by the induction of severe developmental defects. To circumvent this problem, different methods were developed that

Glutathione peroxidase regulation of reactive oxygen species level is crucial for in vitro plant differentiation.

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Phospholipid hydroperoxide glutathione peroxidase (PHGPx) is overexpressed in plants under abiotic and biotic stress conditions that mediate oxidative stress. To study its biological role and its ability to confer stress resistance in plants, we tried to obtain transgenic plants overexpressing

Genome-wide identification, characterization, interaction network and expression profile of GAPDH gene family in sweet orange (Citrus sinensis).

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Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a key glycolytic enzyme that plays important roles in multiple cellular processes including phytohormone signaling, plant development, and transcriptional regulation. Although GAPDH genes have been well characterized in various plant species

Isolation and Characterization of a Novel Pathogenesis-Related Protein Gene (GmPRP) with Induced Expression in Soybean (Glycine max) during Infection with Phytophthora sojae.

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Pathogenesis-related proteins (PR proteins) play crucial roles in the plant defense system. A novel PRP gene was isolated from highly resistant soybean infected with Phytophthora sojae (P. sojae) and was named GmPRP (GenBank accession number: KM506762). The amino acid sequences of GmPRP showed

Evaluation of endophytic colonization of Citrus sinensis and Catharanthus roseus seedlings by endophytic bacteria.

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Over the last few years, the endophytic bacterial community associated with citrus has been studied as an important component interacting with Xylella fastidiosa, the causal agent of citrus variegated chlorosis (CVC). This bacterium may also colonize some model plants, such as Catharanthus roseus

The sucrose synthase-1 promoter from Citrus sinensis directs expression of the β-glucuronidase reporter gene in phloem tissue and in response to wounding in transgenic plants.

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Interest in phloem-specific promoters for the engineering of transgenic plants has been increasing in recent years. In this study we isolated two similar, but distinct, alleles of the Citrus sinensis sucrose synthase-1 promoter (CsSUS1p) and inserted them upstream of the β-glucuronidase (GUS) gene

Genome-wide identification and expression analysis of the polyamine oxidase gene family in sweet orange (Citrus sinensis).

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Polyamine oxidases (PAOs) are FAD-dependent enzymes associated with polyamine catabolism. In plants, increasing evidences support that PAO genes play essential roles in abiotic and biotic stresses response. In this study, six putative PAO genes (CsPAO1-CsPAO6) were unraveled in sweet orange (Citrus

Chlorophyllase is a rate-limiting enzyme in chlorophyll catabolism and is posttranslationally regulated.

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Chlorophyll is a central player in harvesting light energy for photosynthesis, yet the rate-limiting steps of chlorophyll catabolism and the regulation of the catabolic enzymes remain unresolved. To study the role and regulation of chlorophyllase (Chlase), the first enzyme of the chlorophyll

Involvement of an ethylene response factor in chlorophyll degradation during citrus fruit degreening.

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Chlorophyll degradation naturally occurs during plant senescence. However, in fruit such as citrus, it is a positive characteristic, as degreening is an important colour development contributing to fruit quality. In the present work, Citrus sinensis Osbeck, cv. Newhall fruit was used as a model for

An R2R3-MYB transcription factor represses the transformation of α- and β-branch carotenoids by negatively regulating expression of CrBCH2 and CrNCED5 in flavedo of Citrus reticulate.

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Although the functions of carotenogenic genes are well documented, little is known about the mechanisms that regulate their expression, especially those genes involved in α - and β-branch carotenoid metabolism. In this study, an R2R3-MYB transcriptional factor (CrMYB68) that directly regulates the

Molecular cloning and characterization of CrNCED1, a gene encoding 9-cis-epoxycarotenoid dioxygenase in Citrus reshni, with functions in tolerance to multiple abiotic stresses.

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Abscisic acid (ABA) is an important stress phytohormone that plays an essential role in mediating the signaling networks associated with plant responses to various abiotic stresses. In the present study, we isolated a gene CrNCED1 encoding the rate-limiting enzyme of ABA synthesis,

First Report of Dodder Transmission of 'Candidatus Liberibacter asiaticus' to Tomato (Lycopersicon esculentum).

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Citrus huanglongbing (HLB) is one of the most devastating diseases of citrus worldwide. The disease is associated with three different species of fastidious α-proteobacteria, namely 'Candidatus Liberibacter asiaticus', Ca. L. americanus, and Ca. L. africanus (1). 'Ca. L. asiaticus' was first

First Report of Herbacious Hosts for Citrus yellow mosaic badna virus from India.

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Citrus mosaic disease, a potential threat to citrus production throughout India, is currently an important disease in the southern and northeastern states (2). The reported incidence of the disease ranges from 10 to 77% (K. Gopal, G. S. Aparna, M. Sreenivasuluk, K. V. Subbaiah, and A. R. K. Rao,

Bioactivity of six plant extracts on adults of Demotispa neivai (Coleoptera: Chrysomelidae).

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Demotispa neivai Bondar (Coleoptera: Chrysomelidae) damage oil palm fruits, which makes it necessary to develop products to control this insect. The mortality, repellency, and antifeeding effects on adults of D. neivai of six plant extracts of Azadirachta indica A. Juss. (Sapindales: Meliaceae),

The salt-stress signal transduction pathway that activates the gpx1 promoter is mediated by intracellular H2O2, different from the pathway induced by extracellular H2O2.

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Several genes encoding putative glutathione peroxidase have been isolated from a variety of plants, all of which show the highest homology to the phospholipid hydroperoxide isoform. Several observations suggest that the proteins are involved in biotic and abiotic stress responses. Previous studies

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