Initiation and Execution of Programmed Cell Death and Regulation of Reactive Oxygen Species in Plants

Ye, Chanjuan; Zheng, Shaoyan; Jiang, Dagang; Lu, Jingqin; Huang, Zongna; Liu, Zhenlan; Zhou, Hai; Zhuang, Chuxiong; Li, Jing

doi:10.3390/ijms222312942

Cited by 52 publications

(40 citation statements)

References 117 publications

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“…Programmed cell death (PCD) is defined as a sequence of genetically controlled developmental and stress-responsive events that direct the plant cell to die [ 49 ]. Pathogen infection induces PCD [ 50 , 51 , 52 ] as well as unfavorable environmental conditions such as heat stress [ 40 , 53 ]. The BAX Inhibitor-1 (BI-1) protein is a universal PCD inhibitor in eukaryotes including plants [ 54 , 55 ].…”

Section: Discussionmentioning

confidence: 99%

Near-Isogenic Barley Lines Show Enhanced Susceptibility to Powdery Mildew Infection Following High-Temperature Stress

Nagy

Schwarczinger

Király

et al. 2022

Plants

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Barley cultivation is adversely affected by high-temperature stress, which may modulate plant defense responses to pathogens such as barley powdery mildew (Blumeria graminis f. sp. hordei, Bgh). Earlier research focused mainly on the influence of short-term heat stress (heat shock) of barley on Bgh infection. In this study, our aim was to investigate the effects of both short- and long-term heat stress (35 °C from 30 s to 5 days) on Bgh infection in the barley cultivar Ingrid and its near-isogenic lines containing different powdery mildew resistance genes (Mla12, Mlg, and mlo5) by analyzing symptom severity and Bgh biomass with RT-qPCR. The expression of selected barley defense genes (BAX inhibitor-1, Pathogenesis- related protein-1b, Respiratory burst oxidase homologue F2, and Heat shock protein 90-1) was also monitored in plants previously exposed to heat stress followed by inoculation with Bgh. We demonstrated that pre-exposure to short- and long-term heat stress negatively affects the resistance of all resistant lines manifested by the appearance of powdery mildew symptoms and increased Bgh biomass. Furthermore, prolonged heat stress (48 and 120 h) enhanced both Bgh symptoms and biomass in susceptible wild-type Ingrid. Heat stress suppressed and delayed early defense gene activation in resistant lines, which is a possible reason why resistant barley became partially susceptible to Bgh.

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Section: Discussionmentioning

confidence: 99%

Near-Isogenic Barley Lines Show Enhanced Susceptibility to Powdery Mildew Infection Following High-Temperature Stress

Nagy

Schwarczinger

Király

et al. 2022

Plants

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“…Many natural agents have been shown to induce the apoptotic pathway in cancer both in vitro and in vivo [ 71 ]. It has been proven that plant metabolites may directly activate the initiator caspases or the execution caspases [ 72 ].…”

Section: Signaling Molecules and Biological Pathways Targeted By Plan...mentioning

confidence: 99%

Intracellular Pathways and Mechanisms of Colored Secondary Metabolites in Cancer Therapy

Sevastre

Manea

Popescu

et al. 2022

IJMS

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Despite the great advancements made in cancer treatment, there are still many unsatisfied aspects, such as the wide palette of side effects and the drug resistance. There is an obvious increasing scientific attention towards nature and what it can offer the human race. Natural products can be used to treat many diseases, of which some plant products are currently used to treat cancer. Plants produce secondary metabolites for their signaling mechanisms and natural defense. A variety of plant-derived products have shown promising anticancer properties in vitro and in vivo. Rather than recreating the natural production environment, ongoing studies are currently setting various strategies to significantly manipulate the quantity of anticancer molecules in plants. This review focuses on the recently studied secondary metabolite agents that have shown promising anticancer activity, outlining their potential mechanisms of action and pathways.

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Section: Degs Involved In Hormones or Transcription Factorsmentioning

confidence: 99%

“…Pistil abortions, which are involved in programmed cell death (PCD) [24], are highly complex phenomena that are caused by a series of biological processes, including many genes acting synergistically, collaborating in regulating various pathways. Among them, hormones and transcription genes play two important roles in regulating organ senescence and PCD [24]. In our database, seven genes related to ethylene (ETH) metabolism, including encoding 1-aminocyclopropane-1-carboxylate synthase (ACS), aminocyclopropanecarboxylate oxidase (ACO), and ethylene-responsive transcription factor (ERF), were identified by comparing the DEGs of flower buds at stage III (S4 Table ).…”

Section: Degs Involved In Hormones or Transcription Factorsmentioning

confidence: 99%

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Transcriptome analysis of flower bud identified genes associated with pistil abortions between long branches and spur twigs in apricots (Prunus armeniaca L.)

Zhang¹,

Wei²

2022

PLoS ONE

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Pistil abortions of flower buds occur frequently in many apricot cultivars, especially in long branches. However, the molecular mechanism underlying pistil abortion in apricots remains unclear. To better understand the molecular mechanism of pistil abortions between long branches and spur twigs, paraffin sections and high-throughput sequencing technology were employed to analyze the expression patterns of genes associated with pistil abortions during later flower bud development stage in ‘Shajinhong’ apricot. The result of stage III (separation of bud scales) was the critical stage of pistil abortion in apricots. A total of 163 differentially expressed genes were identified as candidate genes related to pistil abortion in long branches. These genes are implicated in programmed cell death, hormone signaling, cell wall degeneration, and the carbohydrate metabolism pathway. The results showed that the up-regulation of gene expression of Xyloglucan endotransglucosylase/hydrolase and β-glucosidase in flower buds might be the direct cause of cell wall breakdown and pistil necrosis in long branches. We hypothesize that there is a molecular relationship between pistil abortion before blooming and cellulose degradation, and then carbohydrate transport in the case of carbon deficiency in long branches. Our work provides new insights into cellulose degradation in abortion pistils and valuable information on flower development in apricots, and also provides a useful reference for cultivation regulation in apricot or other fruit crops.

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Initiation and Execution of Programmed Cell Death and Regulation of Reactive Oxygen Species in Plants

Cited by 52 publications

References 117 publications

Near-Isogenic Barley Lines Show Enhanced Susceptibility to Powdery Mildew Infection Following High-Temperature Stress

Near-Isogenic Barley Lines Show Enhanced Susceptibility to Powdery Mildew Infection Following High-Temperature Stress

Intracellular Pathways and Mechanisms of Colored Secondary Metabolites in Cancer Therapy

Transcriptome analysis of flower bud identified genes associated with pistil abortions between long branches and spur twigs in apricots (Prunus armeniaca L.)

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