Review lecture - Hormones in healthy and diseased plants

Brian, P. W.

doi:10.1098/rspb.1978.0018

Cited by 12 publications

(2 citation statements)

References 54 publications

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“…Hormones play an indispensable role in the processes of plant growth and resistance to stress (Brian, 1978;Dreher and Callis, 2007;Blázquez et al, 2020). Tea trees with small leaves cultivated in subtropical regions stop growing due to the cold and reduced light time, while tea trees cultivated in tropical regions maintain a strong growth potential and sprout young shoots.…”

Section: Discussionmentioning

confidence: 99%

Revealing Distinctions in Genetic Diversity and Adaptive Evolution Between Two Varieties of Camellia sinensis by Whole-Genome Resequencing

Zhao

et al. 2020

Front. Plant Sci.

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Camellia sinensis var. sinensis (CSS) and C. sinensis var. assamica (CSA) are the two most economically important tea varieties. They have different characteristics and geographical distribution. Their genetic diversity and differentiation are unclear. Here, we identified 18,903,625 single nucleotide polymorphisms (SNPs) and 7,314,133 insertion–deletion mutations (indels) by whole-genome resequencing of 30 cultivated and three wild related species. Population structure and phylogenetic tree analyses divided the cultivated accessions into CSS and CSA containing 6,440,419 and 6,176,510 unique variations, respectively. The CSS subgroup possessed higher genetic diversity and was enriched for rare alleles. The CSA subgroup had more non-synonymous mutations and might have experienced a greater degree of balancing selection. The evolution rate (dN/dS) and KEGG enrichment indicated that genes involved in the synthesis and metabolism of flavor substances were positively selected in both CSS and CSA subpopulations. However, there are extensive genome differentiation regions (2959 bins and approximately 148 M in size) between the two subgroups. Compared with CSA (141 selected regions containing 124 genes), the CSS subgroup (830 selected regions containing 687 genes) displayed more selection regions potentially related to environmental adaptability. Fifty-three pairs of polymorphic indel markers were developed. Some markers were located in hormone-related genes with distinct alleles in the two cultivated subgroups. These identified variations and selected regions provide clues for the differentiation and adaptive evolution of tea varieties. The newly developed indel markers will be valuable in further genetic research on tea plants.

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Section: Discussionmentioning

confidence: 99%

Revealing Distinctions in Genetic Diversity and Adaptive Evolution Between Two Varieties of Camellia sinensis by Whole-Genome Resequencing

Zhao

et al. 2020

Front. Plant Sci.

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“…Much of the evidence that cytokinins control the juvenile state is circumstantial and incomplete, particularly with respect to the cereal rusts. In addition, all major classes of plant growth regulators may affect rates of leaf senescence (Wareing & Phillips, 1981) and alterations in the concentrations of auxins and gibberellins in response to infection have all been well documented for a number of rust diseases (Brian, 1978;Pegg, 1982).…”

Section: Discussionmentioning

confidence: 99%

Development of Symptoms of Brown Rust of Barley in Relation to the Distribution of Fungal Mycelium, Starch Accumulation and Localized Changes in the Concentration of Chlorophyll

Scholes

Farrar

1987

New Phytologist

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SUMMARYThe development of symptoms of brown rust {Puccinia hordei Otth.) of barley was examined in relation to the distribution of fungal mycelium within the leaf, the accumulation of chloroplastic starch and localized changes in the concentration of chlorophyll. Symptom development correlated exactly with the growth and distribution of mycelium within the leaf. Starch accumulated in cells associated with or directly surrounded by fungal mycelium, but rarely in cells beyond the leading edge of the colony. A photographic study of the development of a group of brown rust pustules from the flecking stage to the formation of green islands, using incident light and light transmitted through the leaf, suggested that the yellow colour of the flecks was not caused by chlorophyll breakdown, but that the major loss of chlorophyll occurred from regions between fungal pustules. This conclusion was supported by a study of the density of chlorophyll within different regions of the leaf (using the absorption of red light as a measure of chlorophyll density) and by extraction of chlorophyll from different regions of the leaf. These results are discussed in relation to the controversy surrounding the mode of formation of green islands.

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Redox Mechanism and Evaluation of Kinetic and Thermodynamic Parameters of 1,3‐Dioxolo[4,5‐g]pyrido[2,3‐b]quinoxaline Using Electrochemical Techniques

Shah

Rana

et al. 2014

Electroanalysis

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The electrochemical behavior of a biologically important heterocyclic compound, 1,3‐dioxolo[4,5‐g]pyrido[2,3‐b]quinoxaline was investigated by cyclic, square wave and differential pulse voltammetry in solutions of different pH. Kinetic and thermodynamic parameters like standard rate constant, diffusion coefficient, apparent energy of activation, standard Gibbs free energy and enthalpy and entropy changes were evaluated. Limits of detection and quantification were determined by square wave voltammetry. The redox mechanism of the compound was proposed on the basis of experimental results. Computational chemistry was used as a tool for the verification of experimental outcomes and assessment of different theoretical parameters

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Review lecture - Hormones in healthy and diseased plants

Cited by 12 publications

References 54 publications

Revealing Distinctions in Genetic Diversity and Adaptive Evolution Between Two Varieties of Camellia sinensis by Whole-Genome Resequencing

Revealing Distinctions in Genetic Diversity and Adaptive Evolution Between Two Varieties of Camellia sinensis by Whole-Genome Resequencing

Development of Symptoms of Brown Rust of Barley in Relation to the Distribution of Fungal Mycelium, Starch Accumulation and Localized Changes in the Concentration of Chlorophyll

Redox Mechanism and Evaluation of Kinetic and Thermodynamic Parameters of 1,3‐Dioxolo[4,5‐g]pyrido[2,3‐b]quinoxaline Using Electrochemical Techniques

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