Antioxidative Capacity and Electrolyte Leakage in Healthy Versus Phytoplasma Infected Tissues of Euphorbia coerulescens and Orbea gigantea

Dewir, YH

doi:10.4172/2329-955x.1000139

Cited by 2 publications

(1 citation statement)

References 43 publications

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“…In the Jujube plant, the genes related to ABA synthesis were also downregulated (Wang et al, 2018). It has been suggested that ABA is involved in the growth of axillary buds due to the loss of apical dominance (Dewir et al, 2015). This may be a factor in the excessive branching (witches' broom formation) induced by some phytoplasmas, including the causal agent of CFBD.…”

Section: Defense-related Genesmentioning

confidence: 99%

Phytoplasma Infection Influences Gene Expression in American Cranberry

et al. 2019

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Cranberry false blossom disease (CFBD) is caused by a leafhopper-vectored phytoplasma infection. CFBD results in distinctive branching of the upright shoots (witches' broom) and the formation of deformed flowers that fail to produce fruit. This disease is reemerging and poses a serious threat to the cranberry industry. To determine the impact of the disease on host gene expression, we compared transcriptome profiles between plants with CFBD and uninfected cranberry plants. We found that phytoplasma infection induced expression of 132 genes, and suppressed 225 genes, compared to uninfected cranberry plants. Differentially expressed genes between uninfected and infected plants were largely associated with primary and secondary metabolic, defensive, and developmental pathways. Phytoplasma infection increased the expression of genes associated with nutrient metabolism, while suppressing genes associated with defensive pathways. This expression profile change supports the "host manipulation hypothesis," whereby CFBD enhances host quality for insect vectors, thus promoting phytoplasma transmission.

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Section: Defense-related Genesmentioning

confidence: 99%

Phytoplasma Infection Influences Gene Expression in American Cranberry

et al. 2019

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Stress-induced electrolyte leakage from root cells of higher plants: background, mechanism and physiological role

Hryvusevich¹,

Samokhina²,

Demidchik³

2022

Experimental Biology and Biotechnology

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Electrolyte leakage from tissues is one of the central reactions of the plant organism to stress. It is observed under almost any type of stresses, both abiotic and biotic. The loss of key electrolytes can lead to significant changes in metabolism and, in some cases, to the death of cells or the whole organism. For a long time, it was believed, that electrolyte leakage is associated with disruption of cell integrity and plasma membranes degradation, and that it is an unregulated process. However, in recent years, a lot of evidence has been received that, in most cases, electrolyte leakage is inhibited by ion channel blockers and reversible. It means that it is associated with the transfer of ions through the membrane by transport proteins, such as ion channels. Recently, the experimental evidence has been obtained, that under salinity, drought, pathogen attack, excessive levels of heavy metals, hypo- and hyperthermia, as well as oxidative stress, the electrolyte leakage in plant cells is mediated by several types of cation and anion channels, including K+-selective channels (SKOR and GORK), anion channels (such as ALMT1) and a number of non-selective cation channels. It has been demonstrated that the primary reactions that induce electrolyte leakage are plasma membrane depolarisation and generation of reactive oxygen species, leading to the activation of redox-regulated outwardly rectifying K+ channels, such as SKOR and GORK. Potassium efflux is up-stream and stimulates the counterion flow (transport of anions) through the anion channels. The regulation of electrolyte leakage at the ion channel level and the corresponding selection for ion channel properties can become an important link in the directed control of stress resistance in higher plants. This can be applied in agriculture via breeding of stress-tolerant plant varieties, as well as developing modern amelioration techniques.

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Antioxidative Capacity and Electrolyte Leakage in Healthy Versus Phytoplasma Infected Tissues of Euphorbia coerulescens and Orbea gigantea

Cited by 2 publications

References 43 publications

Phytoplasma Infection Influences Gene Expression in American Cranberry

Phytoplasma Infection Influences Gene Expression in American Cranberry

Stress-induced electrolyte leakage from root cells of higher plants: background, mechanism and physiological role

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