Heme Oxygenase-1 Delays Gibberellin-Induced Programmed Cell Death of Rice Aleurone Layers Subjected to Drought Stress by Interacting with Nitric Oxide

Wu, Huangming; Zheng, Yan; Liu, Jing; Zhang, Heting; Chen, Huiping

doi:10.3389/fpls.2015.01267

Cited by 29 publications

(29 citation statements)

References 65 publications

(92 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…FDA is taken up by living cells and emits green fluorescence. FM4-64 penetrates slowly into live cells, but accumulates rapidly in dead cells and emits orange/red fluorescence4546474849.…”

Section: Resultsmentioning

confidence: 99%

“…S1). Ultimately, the protoplast dissolved and the cell died48; this type of fusion is referred to as membrane fusion. In the other type of fusion, a large vacuole (obviously LV) and a few small vacuoles appear together in a cell (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Then, the large central vacuole orderly underwent extension, rupture, and disappearance, with the protoplast collapsing into a mass. Ultimately, the cell was completely degraded and the remaining lumen was only surrounded by a cell wall48 (see Supplementary Fig. S1).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

The relationship between vacuolation and initiation of PCD in rice (Oryza sativa) aleurone cells

Zheng

Zhang

Deng

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

Vacuole fusion is a necessary process for the establishment of a large central vacuole, which is the central location of various hydrolytic enzymes and other factors involved in death at the beginning of plant programmed cell death (PCD). In our report, the fusion of vacuoles has been presented in two ways: i) small vacuoles coalesce to form larger vacuoles through membrane fusion, and ii) larger vacuoles combine with small vacuoles when small vacuoles embed into larger vacuoles. Regardless of how fusion occurs, a large central vacuole is formed in rice (Oryza sativa) aleurone cells. Along with the development of vacuolation, the rupture of the large central vacuole leads to the loss of the intact plasma membrane and the degradation of the nucleus, resulting in cell death. Stabilizing or disrupting the structure of actin filaments (AFs) inhibits or promotes the fusion of vacuoles, which delays or induces PCD. In addition, the inhibitors of the vacuolar processing enzyme (VPE) and cathepsin B (CathB) block the occurrence of the large central vacuole and delay the progression of PCD in rice aleurone layers. Overall, our findings provide further evidence for the rupture of the large central vacuole triggering the PCD in aleruone layers.

show abstract

“…FDA is taken up by living cells and emits green fluorescence. FM4-64 penetrates slowly into live cells, but accumulates rapidly in dead cells and emits orange/red fluorescence4546474849.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

The relationship between vacuolation and initiation of PCD in rice (Oryza sativa) aleurone cells

Zheng

Zhang

Deng

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Exogenous GA is involved in advancing the PCD process of aleurone layers in rice (Zhang et al, 2018;Wu et al, 2016), barley (Bethke et al, 1999) and wheat (Bissenbaev et al, 2011;Xie et al, 2014), contributing to the germination of cereal seeds. To verify whether endogenous Fig.…”

Section: Osvpe3 Is Mainly Regulated By Endogenous Ga In the Aleurone mentioning

confidence: 99%

OsVPE3 Mediates GA-induced Programmed Cell Death in Rice Aleurone Layers via Interacting with Actin Microfilaments

Zhang

Xiao

Deng

et al. 2020

Rice

Self Cite

View full text Add to dashboard Cite

Background: Vacuolar processing enzymes (VPEs) have been identified as the enzymes that regulate vacuole-mediated programmed cell death (PCD) in plants. The mechanism that VPE regulates the PCD in rice aleurone layers remains unknown. Results: The aleurone layers treated with distilled water exerted caspase-1 and VPE activity, both of which were inhibited by the caspase-1 specific inhibitor Ac-YVAD-CMK but not by the caspase-3 specific inhibitor Ac-DEVD-CHO. However, the caspase-1 and caspase-3 inhibitors weakened the activity of caspase-3. Combined with the effects of endogenous gibberellin (GA) on the induction of OsVPEs, we suggest that the OsVPE3 in the aleurone layers, which exhibits caspase-1-like activity, is a key molecule in GA-induced PCD via regulating the protease with caspase-3-like activity. Many studies have confirmed that vacuolar fusion is an important feature of vacuole-mediated PCD in plants. In this experiment, the process of vacuole fusion was accompanied by changes in the structure of actin filaments (AFs), specifically, their depolymerization and polymerization. The process of vacuolar fusion was accelerated or delayed by the promotion or inhibition of the depolymerization of AFs, respectively. Here, the inhibition of OsVPE3 blocked the depolymerization of AFs and delayed the fusion of vacuoles, indicating that OsVPE3 can regulate the fusion of vacuoles in rice aleurone layers via mediating AFs. Furthermore, the depolymerization of AFs contributed to the up-regulation of OsVPE3 gene expression and VPE activity, resulting in accelerated PCD in rice aleurone layers. However, the inhibitor of VPE reversed the effects of AF depolymerization on the activity of VPE, then postponing the process of PCD, implying that AF can involve in GA-induced PCD of rice aleurone layers by mediating OsVPE3. Conclusions: Together, activation of OsVPE3 and depolymerization of AFs shortened the process of vacuolation and PCD in rice aleurone layers, and OsVPE3 interacted with AFs during regulation.

show abstract

“…CO brought about significant enhancement in the activities of amylase and antioxidant enzymes, which were beneficial to the mitigation of drought-stress-induced wheat seed germination inhibition and lipid peroxidation [114]. In rice plants, the level of HO-1 gene expression and HO activity played a significant role in confirming the process of gibberellin-induced PCD in response to drought stress [115] ( Table 4). Thus, the level of HO-1 gene expression, lipid peroxidation, and germination inhibition of plant seeds were improved by CO, thereby enhancing plant tolerance to heavy metals.…”

Section: Drought and Temperature Stressmentioning

confidence: 99%

Research Progress on the Functions of Gasotransmitters in Plant Responses to Abiotic Stresses

Yao

Yang

et al. 2019

Plants

View full text Add to dashboard Cite

Abiotic stress is one of the major threats affecting plant growth and production. The harm of abiotic stresses includes the disruption of cellular redox homeostasis, reactive oxygen species (ROS) production, and oxidative stress in the plant. Plants have different mechanisms to fight stress, and these mechanisms are responsible for maintaining the required homeostasis in plants. Recently, the study of gasotransmitters in plants has attracted much attention, especially for abiotic stress. In the present review, abiotic stressors were mostly found to induce gasotransmitter production in plants. Meanwhile, these gasotransmitters can enhance the activity of several antioxidant enzymes, alleviate the harmfulness of ROS, and enhance plant tolerance under various stress conditions. In addition, we introduced the interaction of gasotransmitters in plants under abiotic stress. With their promising applications in agriculture, gasotransmitters will be adopted in the near future.Plants 2019, 8, 605 2 of 23 unique and regulate specific biological functions. Gasotransmitters have long been of great interest in a wide range of fields. Over the past few decades, the roles of these signaling molecules have been extensively studied for their biological applications. Recently, the emissions of endogenous gasotransmitters in plants have been widely studied and analyzed, thereby providing information to facilitate our understanding of new gasotransmitter signaling pathways. Previous studies found that in response to abiotic stressors, plants usually produce these gasotransmitters [12][13][14]. In addition, there is now considerable evidence to show that gasotransmitters can play a pivotal role in enhancing plant tolerance [2,15,16]. Subsequently, biological gases from complex extra and intracellular pathways and gas mediators may regulate many processes in an antagonistic or synergistic way.In the present review, we introduce the production of gasotransmitters in plants under abiotic stress. Meanwhile, we focused on the recent advances in the roles of gasotransmitters under abiotic stresses and their interaction with other gasotransmitters.

show abstract

Heme Oxygenase-1 Delays Gibberellin-Induced Programmed Cell Death of Rice Aleurone Layers Subjected to Drought Stress by Interacting with Nitric Oxide

Cited by 29 publications

References 65 publications

The relationship between vacuolation and initiation of PCD in rice (Oryza sativa) aleurone cells

The relationship between vacuolation and initiation of PCD in rice (Oryza sativa) aleurone cells

OsVPE3 Mediates GA-induced Programmed Cell Death in Rice Aleurone Layers via Interacting with Actin Microfilaments

Research Progress on the Functions of Gasotransmitters in Plant Responses to Abiotic Stresses

Contact Info

Product

Resources

About