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Journal articles on the topic 'Plant autophagy'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Luo, Shuwei, Xifeng Li, Yan Zhang, et al. "Cargo Recognition and Function of Selective Autophagy Receptors in Plants." International Journal of Molecular Sciences 22, no. 3 (2021): 1013. http://dx.doi.org/10.3390/ijms22031013.

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Autophagy is a major quality control system for degradation of unwanted or damaged cytoplasmic components to promote cellular homeostasis. Although non-selective bulk degradation of cytoplasm by autophagy plays a role during cellular response to nutrient deprivation, the broad roles of autophagy are primarily mediated by selective clearance of specifically targeted components. Selective autophagy relies on cargo receptors that recognize targeted components and recruit them to autophagosomes through interaction with lapidated autophagy-related protein 8 (ATG8) family proteins anchored in the me

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2

Wang, Song, Weiming Hu, and Fen Liu. "Autophagy in the Lifetime of Plants: From Seed to Seed." International Journal of Molecular Sciences 23, no. 19 (2022): 11410. http://dx.doi.org/10.3390/ijms231911410.

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Autophagy is a highly conserved self-degradation mechanism in eukaryotes. Excess or harmful intracellular content can be encapsulated by double-membrane autophagic vacuoles and transferred to vacuoles for degradation in plants. Current research shows three types of autophagy in plants, with macroautophagy being the most important autophagic degradation pathway. Until now, more than 40 autophagy-related (ATG) proteins have been identified in plants that are involved in macroautophagy, and these proteins play an important role in plant growth regulation and stress responses. In this review, we m

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Ran, Jie, Sayed M. Hashimi, and Jian-Zhong Liu. "Emerging Roles of the Selective Autophagy in Plant Immunity and Stress Tolerance." International Journal of Molecular Sciences 21, no. 17 (2020): 6321. http://dx.doi.org/10.3390/ijms21176321.

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Autophagy is a conserved recycling system required for cellular homeostasis. Identifications of diverse selective receptors/adaptors that recruit appropriate autophagic cargoes have revealed critical roles of selective autophagy in different biological processes in plants. In this review, we summarize the emerging roles of selective autophagy in both biotic and abiotic stress tolerance and highlight the new features of selective receptors/adaptors and their interactions with both the cargoes and Autophagy-related gene 8s (ATG8s). In addition, we review how the two major degradation systems, na

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Gao, Caiji, Xiaohong Zhuang, Yong Cui, et al. "Dual roles of an Arabidopsis ESCRT component FREE1 in regulating vacuolar protein transport and autophagic degradation." Proceedings of the National Academy of Sciences 112, no. 6 (2015): 1886–91. http://dx.doi.org/10.1073/pnas.1421271112.

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Protein turnover can be achieved via the lysosome/vacuole and the autophagic degradation pathways. Evidence has accumulated revealing that efficient autophagic degradation requires functional endosomal sorting complex required for transport (ESCRT) machinery. However, the interplay between the ESCRT machinery and the autophagy regulator remains unclear. Here, we show that FYVE domain protein required for endosomal sorting 1 (FREE1), a recently identified plant-specific ESCRT component essential for multivesicular body (MVB) biogenesis and plant growth, plays roles both in vacuolar protein tran

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Zhang, Ruonan, Tengfei Wang, Yu Cheng, et al. "Rice stripe mosaic virus M protein antagonizes G-protein-induced antiviral autophagy in insect vectors." PLOS Pathogens 21, no. 4 (2025): e1013070. https://doi.org/10.1371/journal.ppat.1013070.

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In the field, 80% of plant viruses are transmitted by insect vectors. When ingested by a sap-sucking insect such as Recilia dorsalis, persistently transmitted viruses such as rice stripe mosaic virus (RSMV) infect the gut epithelium and eventually pass to the salivary glands where they will be transmitted to the next rice (Oryza sativa) plant. To efficiently exploit insect vectors for transmission, plant viruses must overcome various immune mechanisms within the vectors, including autophagy. However, understanding how plant viruses overcome insect autophagic defenses remains limited. In this s

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Wleklik, Karolina, and Sławomir Borek. "Vacuolar Processing Enzymes in Plant Programmed Cell Death and Autophagy." International Journal of Molecular Sciences 24, no. 2 (2023): 1198. http://dx.doi.org/10.3390/ijms24021198.

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Vacuolar processing enzymes (VPEs) are plant cysteine proteases that are subjected to autoactivation in an acidic pH. It is presumed that VPEs, by activating other vacuolar hydrolases, are in control of tonoplast rupture during programmed cell death (PCD). Involvement of VPEs has been indicated in various types of plant PCD related to development, senescence, and environmental stress responses. Another pathway induced during such processes is autophagy, which leads to the degradation of cellular components and metabolite salvage, and it is presumed that VPEs may be involved in the degradation

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Zeng, Yonglun, Baiying Li, Changyang Ji, et al. "A unique AtSar1D-AtRabD2a nexus modulates autophagosome biogenesis in Arabidopsis thaliana." Proceedings of the National Academy of Sciences 118, no. 17 (2021): e2021293118. http://dx.doi.org/10.1073/pnas.2021293118.

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In eukaryotes, secretory proteins traffic from the endoplasmic reticulum (ER) to the Golgi apparatus via coat protein complex II (COPII) vesicles. Intriguingly, during nutrient starvation, the COPII machinery acts constructively as a membrane source for autophagosomes during autophagy to maintain cellular homeostasis by recycling intermediate metabolites. In higher plants, essential roles of autophagy have been implicated in plant development and stress responses. Nonetheless, the membrane sources of autophagosomes, especially the participation of the COPII machinery in the autophagic pathway

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Kang, Yuanrong, Wenwu Lin, and Peter D. Nagy. "Subversion of selective autophagy for the biogenesis of tombusvirus replication organelles inhibits autophagy." PLOS Pathogens 20, no. 3 (2024): e1012085. http://dx.doi.org/10.1371/journal.ppat.1012085.

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Elaborate viral replication organelles (VROs) are formed to support positive-strand RNA virus replication in infected cells. VRO formation requires subversion of intracellular membranes by viral replication proteins. Here, we showed that the key ATG8f autophagy protein and NBR1 selective autophagy receptor were co-opted by Tomato bushy stunt virus (TBSV) and the closely-related carnation Italian ringspot virus. Knockdown of ATG8f or NBR1 in plants led to reduced tombusvirus replication, suggesting pro-viral function for selective autophagy. BiFC and proximity-labeling experiments showed that t

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9

Elander, Pernilla H., Sanjana Holla, Igor Sabljić, et al. "Interactome of Arabidopsis ATG5 Suggests Functions beyond Autophagy." International Journal of Molecular Sciences 24, no. 15 (2023): 12300. http://dx.doi.org/10.3390/ijms241512300.

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Autophagy is a catabolic pathway capable of degrading cellular components ranging from individual molecules to organelles. Autophagy helps cells cope with stress by removing superfluous or hazardous material. In a previous work, we demonstrated that transcriptional upregulation of two autophagy-related genes, ATG5 and ATG7, in Arabidopsis thaliana positively affected agronomically important traits: biomass, seed yield, tolerance to pathogens and oxidative stress. Although the occurrence of these traits correlated with enhanced autophagic activity, it is possible that autophagy-independent role

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Wleklik, Karolina, Szymon Stefaniak, Katarzyna Nuc, Małgorzata Pietrowska-Borek, and Sławomir Borek. "Identification and Potential Participation of Lipases in Autophagic Body Degradation in Embryonic Axes of Lupin (Lupinus spp.) Germinating Seeds." International Journal of Molecular Sciences 25, no. 1 (2023): 90. http://dx.doi.org/10.3390/ijms25010090.

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Autophagy is a fundamental process for plants that plays a crucial role in maintaining cellular homeostasis and promoting survival in response to various environmental stresses. One of the lesser-known stages of plant autophagy is the degradation of autophagic bodies in vacuoles. To this day, no plant vacuolar enzyme has been confirmed to be involved in this process. On the other hand, several enzymes have been described in yeast (Saccharomyces cerevisiae), including Atg15, that possess lipolytic activity. In this preliminary study, which was conducted on isolated embryonic axes of the white l

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Chang, Hsueh-Wei, Pei-Feng Liu, Wei-Lun Tsai, et al. "Xanthium strumarium Fruit Extract Inhibits ATG4B and Diminishes the Proliferation and Metastatic Characteristics of Colorectal Cancer Cells." Toxins 11, no. 6 (2019): 313. http://dx.doi.org/10.3390/toxins11060313.

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Autophagy is an evolutionarily conserved pathway to degrade damaged proteins and organelles for subsequent recycling in cells during times of nutrient deprivation. This process plays an important role in tumor development and progression, allowing cancer cells to survive in nutrient-poor environments. The plant kingdom provides a powerful source for new drug development to treat cancer. Several plant extracts induce autophagy in cancer cells. However, little is known about the role of plant extracts in autophagy inhibition, particularly autophagy-related (ATG) proteins. In this study, we emplo

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Yang, Meng, Asigul Ismayil, and Yule Liu. "Autophagy in Plant-Virus Interactions." Annual Review of Virology 7, no. 1 (2020): 403–19. http://dx.doi.org/10.1146/annurev-virology-010220-054709.

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Autophagy is a conserved vacuole/lysosome-mediated degradation pathway for clearing and recycling cellular components including cytosol, macromolecules, and dysfunctional organelles. In recent years, autophagy has emerged to play important roles in plant-pathogen interactions. It acts as an antiviral defense mechanism in plants. Moreover, increasing evidence shows that plant viruses can manipulate, hijack, or even exploit the autophagy pathway to promote pathogenesis, demonstrating the pivotal role of autophagy in the evolutionary arms race between hosts and viruses. In this review, we discuss

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Sirko, Agnieszka, and Céline Masclaux-Daubresse. "Advances in Plant Autophagy." Cells 10, no. 1 (2021): 194. http://dx.doi.org/10.3390/cells10010194.

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14

Zenkov, N. K., A. V. Chechushkov, P. M. Kozhin, N. V. Kandalintseva, G. G. Martinovich, and E. B. Menshchikova. "Plant phenols and autophagy." Biochemistry (Moscow) 81, no. 4 (2016): 297–314. http://dx.doi.org/10.1134/s0006297916040015.

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15

Siedlecka-Kroplewska, Kamila, Zbigniew Kmiec, and Michal Aleksander Zmijewski. "The Interplay Between Autophagy and Apoptosis in the Mechanisms of Action of Stilbenes in Cancer Cells." Antioxidants 14, no. 3 (2025): 339. https://doi.org/10.3390/antiox14030339.

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Plant-based stilbenes are low-molecular-weight polyphenolic compounds that exhibit anti-oxidant, anti-microbial, anti-fungal, anti-inflammatory, anti-diabetic, cardioprotective, neuroprotective, and anti-cancer activities. They are phytoalexins produced in diverse plant species in response to stress, such as fungal and bacterial infections or excessive UV irradiation. Plant-derived dietary products containing stilbenes are common components of the human diet. Stilbenes appear to be promising chemopreventive and chemotherapeutic agents. Accumulating evidence indicates that stilbenes are able to

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Macgregor, Stuart R., Hyun Kyung Lee, Hayley Nelles, et al. "Autophagy is required for self-incompatible pollen rejection in two transgenic Arabidopsis thaliana accessions." Plant Physiology 188, no. 4 (2022): 2073–84. http://dx.doi.org/10.1093/plphys/kiac026.

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Abstract Successful reproduction in the Brassicaceae is mediated by a complex series of interactions between the pollen and the pistil, and some species have an additional layer of regulation with the self-incompatibility trait. While the initial activation of the self-incompatibility pathway by the pollen S-locus protein 11/S locus cysteine-rich protein and the stigma S Receptor Kinase is well characterized, the downstream mechanisms causing self-pollen rejection are still not fully understood. In previous studies, we detected the presence of autophagic bodies with self-incompatible (SI) poll

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Masclaux-Daubresse, Céline, Sabine d’Andrea, Isabelle Bouchez, and Jean-Luc Cacas. "Reserve lipids and plant autophagy." Journal of Experimental Botany 71, no. 10 (2020): 2854–61. http://dx.doi.org/10.1093/jxb/eraa082.

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Abstract Autophagy is a universal mechanism that facilitates the degradation of unwanted cytoplasmic components in eukaryotic cells. In this review, we highlight recent developments in the investigation of the role of autophagy in lipid homeostasis in plants by comparison with algae, yeast, and animals. We consider the storage compartments that form the sources of lipids in plants, and the roles that autophagy plays in the synthesis of triacylglycerols and in the formation and maintenance of lipid droplets. We also consider the relationship between lipids and the biogenesis of autophagosomes,

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Oh, Junepyo, and Cecilia Tamborindeguy. "Treatment of Rapamycin and Evaluation of an Autophagic Response in the Gut of Bactericera cockerelli (Sulč)." Insects 14, no. 2 (2023): 142. http://dx.doi.org/10.3390/insects14020142.

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Autophagy is a catabolic process that results in the autophagosomic–lysosomal degradation of bulk cytoplasmic content, abnormal protein aggregates, and excess of/or damaged organelles to promote cell survival. Autophagy is also a component of innate immunity in insects and is involved in the clearance of pathogens, including bacteria. The potato psyllid, Bactericera cockerelli, transmits the plant bacterial pathogen ‘Candidatus Liberibacter solanacearum’ (Lso) in the Americas and causes serious damage to solanaceous crops. Our previous studies showed that autophagy could be involved in the psy

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Wu, Yu, Clémence Taisne, Nassim Mahtal, et al. "Autophagic Degradation Is Involved in Cell Protection against Ricin Toxin." Toxins 15, no. 5 (2023): 304. http://dx.doi.org/10.3390/toxins15050304.

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Autophagy is a complex and highly regulated degradative process, which acts as a survival pathway in response to cellular stress, starvation and pathogen infection. Ricin toxin is a plant toxin produced by the castor bean and classified as a category B biothreat agent. Ricin toxin inhibits cellular protein synthesis by catalytically inactivating ribosomes, leading to cell death. Currently, there is no licensed treatment for patients exposed to ricin. Ricin-induced apoptosis has been extensively studied; however, whether its intoxication via protein synthesis inhibition affects autophagy is not

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20

Acheampong, Atiako Kwame, Carly Shanks, Chia-Yi Cheng, G. Eric Schaller, Yasin Dagdas, and Joseph J. Kieber. "EXO70D isoforms mediate selective autophagic degradation of type-A ARR proteins to regulate cytokinin sensitivity." Proceedings of the National Academy of Sciences 117, no. 43 (2020): 27034–43. http://dx.doi.org/10.1073/pnas.2013161117.

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The phytohormone cytokinin influences many aspects of plant growth and development, several of which also involve the cellular process of autophagy, including leaf senescence, nutrient remobilization, and developmental transitions. The Arabidopsis type-A response regulators (type-A ARR) are negative regulators of cytokinin signaling that are transcriptionally induced in response to cytokinin. Here, we describe a mechanistic link between cytokinin signaling and autophagy, demonstrating that plants modulate cytokinin sensitivity through autophagic regulation of type-A ARR proteins. Type-A ARR pr

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21

Zhou, Rong, Zutong Zhang, Xinjie Li, et al. "Autophagy in High-Fat Diet and Streptozotocin-Induced Metabolic Cardiomyopathy: Mechanisms and Therapeutic Implications." International Journal of Molecular Sciences 26, no. 4 (2025): 1668. https://doi.org/10.3390/ijms26041668.

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Metabolic cardiomyopathy, encompassing diabetic and obese cardiomyopathy, is an escalating global health concern, driven by the rising prevalence of metabolic disorders such as insulin resistance, type 1 and type 2 diabetes, and obesity. These conditions induce structural and functional alterations in the heart, including left ventricular dysfunction, fibrosis, and ultimately heart failure, particularly in the presence of coronary artery disease or hypertension. Autophagy, a critical cellular process for maintaining cardiac homeostasis, is frequently disrupted in metabolic cardiomyopathy. This

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Bao, Yan, Wei-Meng Song, Peipei Wang, et al. "COST1 regulates autophagy to control plant drought tolerance." Proceedings of the National Academy of Sciences 117, no. 13 (2020): 7482–93. http://dx.doi.org/10.1073/pnas.1918539117.

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Plants balance their competing requirements for growth and stress tolerance via a sophisticated regulatory circuitry that controls responses to the external environments. We have identified a plant-specific gene, COST1 (constitutively stressed 1), that is required for normal plant growth but negatively regulates drought resistance by influencing the autophagy pathway. An Arabidopsis thaliana cost1 mutant has decreased growth and increased drought tolerance, together with constitutive autophagy and increased expression of drought-response genes, while overexpression of COST1 confers drought hyp

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Mosesso, Niccolò, and Erika Isono. "Rettung der versalzten Zelle: ESCRT-vermittelte Autophagie." BIOspektrum 31, no. 4 (2025): 383–85. https://doi.org/10.1007/s12268-025-2486-9.

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Abstract Autophagy is an evolutionarily conserved cellular process that is important in plants to cope with adverse environmental conditions such as salt stress. It removes damaged and non-functional cellular contents. At the same time, essential building blocks for proteins, carbohydrates, and lipids are recycled through autophagic activity. Autophagic cargoes are engulfed by a double-membrane autophagosome, the maturation and formation of which requires the endosomal sorting complex required for transport (ESCRT). Here we discuss the molecular mechanism of ESCRT function in salt-induced plan

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Zhang, Tianrui, Zhidan Xiao, Chuanliang Liu, et al. "Autophagy Mediates the Degradation of Plant ESCRT Component FREE1 in Response to Iron Deficiency." International Journal of Molecular Sciences 22, no. 16 (2021): 8779. http://dx.doi.org/10.3390/ijms22168779.

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Multivesicular body (MVB)-mediated endosomal sorting and macroautophagy are the main pathways mediating the transport of cellular components to the vacuole and are essential for maintaining cellular homeostasis. The interplay of these two pathways remains poorly understood in plants. In this study, we show that FYVE DOMAIN PROTEIN REQUIRED FOR ENDOSOMAL SORTING 1 (FREE1), which was previously identified as a plant-specific component of the endosomal sorting complex required for transport (ESCRT), essential for MVB biogenesis and plant growth, can be transported to the vacuole for degradation i

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Zhang, Yongle, Zuokun Yang, Zhe Zhang, Guoping Wang, Xiang-Dong Li, and Ni Hong. "Citrus tristeza virus p20 suppresses antiviral RNA silencing by co-opting autophagy-related protein 8 to mediate the autophagic degradation of SGS3." PLOS Pathogens 21, no. 2 (2025): e1012960. https://doi.org/10.1371/journal.ppat.1012960.

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Viruses exploit autophagy to degrade host immune components for their successful infection. However, how viral factors sequester the autophagic substrates into autophagosomes remains largely unknown. In this study, we showed that p20 protein, a viral suppressor of RNA silencing (VSR) encoded by citrus tristeza virus (CTV), mediated autophagic degradation of SUPPRESSOR OF GENE SILENCING 3 (SGS3), a plant-specific RNA-binding protein that is pivotal in antiviral RNA silencing. CTV infection activated autophagy, and the overexpression of p20 was sufficient to induce autophagy. Silencing of autoph

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Aroca, Angeles, and Cecilia Gotor. "Hydrogen Sulfide: A Key Role in Autophagy Regulation from Plants to Mammalians." Antioxidants 11, no. 2 (2022): 327. http://dx.doi.org/10.3390/antiox11020327.

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Autophagy is a degradative conserved process in eukaryotes to recycle unwanted cellular protein aggregates and damaged organelles. Autophagy plays an important role under normal physiological conditions in multiple biological processes, but it is induced under cellular stress. Therefore, it needs to be tightly regulated to respond to different cellular stimuli. In this review, the regulation of autophagy by hydrogen sulfide is described in both animal and plant systems. The underlying mechanism of action of sulfide is deciphered as the persulfidation of specific targets, regulating the pro- or

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Hashimi, Said M., Min-Jun Huang, Mohammad Q. Amini, et al. "Silencing GmATG7 Leads to Accelerated Senescence and Enhanced Disease Resistance in Soybean." International Journal of Molecular Sciences 24, no. 22 (2023): 16508. http://dx.doi.org/10.3390/ijms242216508.

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Autophagy plays a critical role in nutrient recycling/re-utilizing under nutrient deprivation conditions. However, the role of autophagy in soybeans has not been intensively investigated. In this study, the Autophay-related gene 7 (ATG7) gene in soybeans (referred to as GmATG7) was silenced using a virus-induced gene silencing approach mediated by Bean pod mottle virus (BPMV). Our results showed that ATG8 proteins were highly accumulated in the dark-treated leaves of the GmATG7-silenced plants relative to the vector control leaves (BPMV-0), which is indicative of an impaired autophagy pathway.

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Stefaniak, Szymon, Łukasz Wojtyla, Małgorzata Pietrowska-Borek, and Sławomir Borek. "Completing Autophagy: Formation and Degradation of the Autophagic Body and Metabolite Salvage in Plants." International Journal of Molecular Sciences 21, no. 6 (2020): 2205. http://dx.doi.org/10.3390/ijms21062205.

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Autophagy is an evolutionarily conserved process that occurs in yeast, plants, and animals. Despite many years of research, some aspects of autophagy are still not fully explained. This mostly concerns the final stages of autophagy, which have not received as much interest from the scientific community as the initial stages of this process. The final stages of autophagy that we take into consideration in this review include the formation and degradation of the autophagic bodies as well as the efflux of metabolites from the vacuole to the cytoplasm. The autophagic bodies are formed through the

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Bassham, Diane C. "Plant autophagy and intracellular trafficking." FEBS Letters 596, no. 17 (2022): 2089–92. http://dx.doi.org/10.1002/1873-3468.14466.

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Liu, Xiao-Hong, Fei Xu, John Hugh Snyder, Huan-Bin Shi, Jian-Ping Lu, and Fu-Cheng Lin. "Autophagy in plant pathogenic fungi." Seminars in Cell & Developmental Biology 57 (September 2016): 128–37. http://dx.doi.org/10.1016/j.semcdb.2016.03.022.

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Seay, Montrell, Shalaka Patel, and Savithramma P. Dinesh-Kumar. "Autophagy and plant innate immunity." Cellular Microbiology 8, no. 6 (2006): 899–906. http://dx.doi.org/10.1111/j.1462-5822.2006.00715.x.

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Bozhkov, Peter V. "Plant autophagy: mechanisms and functions." Journal of Experimental Botany 69, no. 6 (2018): 1281–85. http://dx.doi.org/10.1093/jxb/ery070.

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Kim, Jimi, Han Nim Lee, and Taijoon Chung. "Plant cell remodeling by autophagy." Autophagy 10, no. 4 (2014): 702–3. http://dx.doi.org/10.4161/auto.27953.

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Hafrén, Anders, Jean-Luc Macia, Andrew J. Love, Joel J. Milner, Martin Drucker, and Daniel Hofius. "Selective autophagy limits cauliflower mosaic virus infection by NBR1-mediated targeting of viral capsid protein and particles." Proceedings of the National Academy of Sciences 114, no. 10 (2017): E2026—E2035. http://dx.doi.org/10.1073/pnas.1610687114.

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Autophagy plays a paramount role in mammalian antiviral immunity including direct targeting of viruses and their individual components, and many viruses have evolved measures to antagonize or even exploit autophagy mechanisms for the benefit of infection. In plants, however, the functions of autophagy in host immunity and viral pathogenesis are poorly understood. In this study, we have identified both anti- and proviral roles of autophagy in the compatible interaction of cauliflower mosaic virus (CaMV), a double-stranded DNA pararetrovirus, with the model plantArabidopsis thaliana. We show tha

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Chandrasekaran, Vichitra, Tousif Ahmed Hediyal, Nikhilesh Anand, et al. "Polyphenols, Autophagy and Neurodegenerative Diseases: A Review." Biomolecules 13, no. 8 (2023): 1196. http://dx.doi.org/10.3390/biom13081196.

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Polyphenols are secondary metabolites from plant origin and are shown to possess a wide range of therapeutic benefits. They are also reported as regulators of autophagy, inflammation and neurodegeneration. The autophagy pathway is vital in degrading outdated organelles, proteins and other cellular wastes. The dysregulation of autophagy causes proteinopathies, mitochondrial dysfunction and neuroinflammation thereby contributing to neurodegeneration. Evidence reveals that polyphenols improve autophagy by clearing misfolded proteins in the neurons, suppress neuroinflammation and oxidative stress

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Angeles, Aroca, and Bassham Diane. "The Role of Sulfide in Reticulophagy through the Regulation of ATG18a by Persulfidation." FASEB Journal 34 (April 17, 2020): 1. https://doi.org/10.1096/fasebj.2020.34.s1.04178.

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Autophagy is a major catabolic process in eukaryotic cells to degrade dysfunctional or unnecessary cellular components. It has conserved functions in development, cellular homeostasis, and stress responses from yeast to plants and mammals. Autophagy is implicated in cancer, liver disease, neurodegeneration, cardiac disease, pathogen infection, among other pathological symptoms in mammals, but in plants, it is critically important in the plant life, including seedling establishment, plant development, stress resistance, metabolism and reproduction. Autophagy also contributes to intracellular ho

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Kim, Jeong Hun, Han Nim Lee, Xiao Huang, et al. "FYVE2, a phosphatidylinositol 3-phosphate effector, interacts with the COPII machinery to control autophagosome formation in Arabidopsis." Plant Cell 34, no. 1 (2021): 351–73. http://dx.doi.org/10.1093/plcell/koab263.

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Abstract Autophagy is an intracellular trafficking mechanism by which cytosolic macromolecules and organelles are sequestered into autophagosomes for degradation inside the vacuole. In various eukaryotes including yeast, metazoans, and plants, the precursor of the autophagosome, termed the phagophore, nucleates in the vicinity of the endoplasmic reticulum (ER) with the participation of phosphatidylinositol 3-phosphate (PI3P) and the coat protein complex II (COPII). Here we show that Arabidopsis thaliana FYVE2, a plant-specific PI3P-binding protein, provides a functional link between the COPII

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Batoko, Henri, Yasin Dagdas, Frantisek Baluska, and Agnieszka Sirko. "Understanding and exploiting autophagy signaling in plants." Essays in Biochemistry 61, no. 6 (2017): 675–85. http://dx.doi.org/10.1042/ebc20170034.

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Autophagy is an essential catabolic pathway and is activated by various endogenous and exogenous stimuli. In particular, autophagy is required to allow sessile organisms such as plants to cope with biotic or abiotic stress conditions. It is thought that these various environmental signaling pathways are somehow integrated with autophagy signaling. However, the molecular mechanisms of plant autophagy signaling are not well understood, leaving a big gap of knowledge as a barrier to being able to manipulate this important pathway to improve plant growth and development. In this review, we discuss

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Forouzanfar, Fatemeh, and Seyed Hadi Mousavi. "Targeting Autophagic Pathways by Plant Natural Compounds in Cancer Treatment." Current Drug Targets 21, no. 12 (2020): 1237–49. http://dx.doi.org/10.2174/1389450121666200504072635.

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Nowadays, natural compounds of plant origin with anticancer effects have gained more attention because of their clinical safety and broad efficacy profiles. Autophagy is a multistep lysosomal degradation pathway that may have a unique potential for clinical benefit in the setting of cancer treatment. To retrieve articles related to the study, the databases of Google Scholar, Web of sciences, Medline and Scopus, using the following keywords: Autophagic pathways; herbal medicine, oncogenic autophagic pathways, tumor-suppressive autophagic pathways, and cancer were searched. Although natural plan

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Tyutereva, Elena V., Ksenia S. Dobryakova, Andreas Schiermeyer, et al. "The levels of peroxisomal catalase protein and activity modulate the onset of cell death in tobacco BY-2 cells via reactive oxygen species levels and autophagy." Functional Plant Biology 45, no. 2 (2018): 247. http://dx.doi.org/10.1071/fp16418.

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In plant cells, peroxisomes participate in the metabolism of reactive oxygen species (ROS). One of the major regulators of cellular ROS levels – catalase (CAT) – occurs exclusively in peroxisomes. CAT activity is required for immunity-triggered autophagic programmed cell death (PCD). Autophagy has been recently demonstrated to represent a route for degradation of peroxisomes in plant cells. In the present study, the dynamics of the cellular peroxisome pool in tobacco BY-2 cell suspension cultures were used to analyse the effects of inhibition of basal autophagy with special attention to CAT ac

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Chen, Hong, Jiangli Dong, and Tao Wang. "Autophagy in Plant Abiotic Stress Management." International Journal of Molecular Sciences 22, no. 8 (2021): 4075. http://dx.doi.org/10.3390/ijms22084075.

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Plants can be considered an open system. Throughout their life cycle, plants need to exchange material, energy and information with the outside world. To improve their survival and complete their life cycle, plants have developed sophisticated mechanisms to maintain cellular homeostasis during development and in response to environmental changes. Autophagy is an evolutionarily conserved self-degradative process that occurs ubiquitously in all eukaryotic cells and plays many physiological roles in maintaining cellular homeostasis. In recent years, an increasing number of studies have shown that

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Mitou, Géraldine, Hikmet Budak, and Devrim Gozuacik. "Techniques to Study Autophagy in Plants." International Journal of Plant Genomics 2009 (August 27, 2009): 1–14. http://dx.doi.org/10.1155/2009/451357.

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Autophagy (or self eating), a cellular recycling mechanism, became the center of interest and subject of intensive research in recent years. Development of new molecular techniques allowed the study of this biological phenomenon in various model organisms ranging from yeast to plants and mammals. Accumulating data provide evidence that autophagy is involved in a spectrum of biological mechanisms including plant growth, development, response to stress, and defense against pathogens. In this review, we briefly summarize general and plant-related autophagy studies, and explain techniques commonly

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Benvenuto, Monica, Loredana Albonici, Chiara Focaccetti, et al. "Polyphenol-Mediated Autophagy in Cancer: Evidence of In Vitro and In Vivo Studies." International Journal of Molecular Sciences 21, no. 18 (2020): 6635. http://dx.doi.org/10.3390/ijms21186635.

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One of the hallmarks of cellular transformation is the altered mechanism of cell death. There are three main types of cell death, characterized by different morphological and biochemical features, namely apoptosis (type I), autophagic cell death (type II) and necrosis (type III). Autophagy, or self-eating, is a tightly regulated process involved in stress responses, and it is a lysosomal degradation process. The role of autophagy in cancer is controversial and has been associated with both the induction and the inhibition of tumor growth. Autophagy can exert tumor suppression through the degra

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Gou, Wentao, Xi Li, Shaoying Guo, Yunfeng Liu, Faqiang Li, and Qingjun Xie. "Autophagy in Plant: A New Orchestrator in the Regulation of the Phytohormones Homeostasis." International Journal of Molecular Sciences 20, no. 12 (2019): 2900. http://dx.doi.org/10.3390/ijms20122900.

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Autophagy is a highly evolutionarily-conserved catabolic process facilitating the development and survival of organisms which have undergone favorable and/or stressful conditions, in particular the plant. Accumulating evidence has implicated that autophagy is involved in growth and development, as well as responses to various stresses in plant. Similarly, phytohormones also play a pivotal role in the response to various stresses in addition to the plant growth and development. However, the relationship between autophagy and phytohormones still remains poorly understood. Here, we review advance

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Liao, Ching-Yi, and Diane C. Bassham. "Combating stress: the interplay between hormone signaling and autophagy in plants." Journal of Experimental Botany 71, no. 5 (2019): 1723–33. http://dx.doi.org/10.1093/jxb/erz515.

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Abstract Autophagy is a conserved recycling process in which cellular components are delivered to and degraded in the vacuole/lysosome for reuse. In plants, it assists in responding to dynamic environmental conditions and maintaining metabolite homeostasis under normal or stress conditions. Under stress, autophagy is activated to remove damaged components and to recycle nutrients for survival, and the energy sensor kinases target of rapamycin (TOR) and SNF-related kinase 1 (SnRK1) are key to this activation. Here, we discuss accumulating evidence that hormone signaling plays critical roles in

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Leong, Jia Xuan, Gautier Langin, and Suayib Üstün. "Selective autophagy: adding precision in plant immunity." Essays in Biochemistry, May 30, 2022. http://dx.doi.org/10.1042/ebc20210063.

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Abstract Plant immunity is antagonized by pathogenic effectors during interactions with bacteria, viruses or oomycetes. These effectors target core plant processes to promote infection. One such core plant process is autophagy, a conserved proteolytic pathway involved in ensuring cellular homeostasis. It involves the formation of autophagosomes around proteins destined for autophagic degradation. Many cellular components from organelles, aggregates, inactive or misfolded proteins have been found to be degraded via autophagy. Increasing evidence points to a high degree of specificity during the

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Kim, Jeong Hun, Hyera Jung, Kyoungjun Song, Han Nim Lee, and Taijoon Chung. "The phosphatidylinositol 3-phosphate effector FYVE3 regulates FYVE2-dependent autophagy in Arabidopsis thaliana." Frontiers in Plant Science 14 (March 15, 2023). http://dx.doi.org/10.3389/fpls.2023.1160162.

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Phosphatidylinositol 3-phosphate (PI3P) is a signaling phospholipid that play a key role in endomembrane trafficking, specifically autophagy and endosomal trafficking. However, the mechanisms underlying the contribution of PI3P downstream effectors to plant autophagy remain unknown. Known PI3P effectors for autophagy in Arabidopsis thaliana include ATG18A (Autophagy-related 18A) and FYVE2 (Fab1p, YOTB, Vac1p, and EEA1 2), which are implicated in autophagosome biogenesis. Here, we report that FYVE3, a paralog of plant-specific FYVE2, plays a role in FYVE2-dependent autophagy. Using yeast two-hy

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Haxim, Yakupjan, Asigul Ismayil, Qi Jia, et al. "Autophagy functions as an antiviral mechanism against geminiviruses in plants." eLife 6 (February 28, 2017). http://dx.doi.org/10.7554/elife.23897.

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Autophagy is an evolutionarily conserved process that recycles damaged or unwanted cellular components, and has been linked to plant immunity. However, how autophagy contributes to plant immunity is unknown. Here we reported that the plant autophagic machinery targets the virulence factor βC1 of Cotton leaf curl Multan virus (CLCuMuV) for degradation through its interaction with the key autophagy protein ATG8. A V32A mutation in βC1 abolished its interaction with NbATG8f, and virus carrying βC1V32A showed increased symptoms and viral DNA accumulation in plants. Furthermore, silencing of autoph

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Qi, Hua, Yao Wang, Yan Bao, et al. "Studying plant autophagy: challenges and recommended methodologies." Advanced Biotechnology 1, no. 4 (2023). http://dx.doi.org/10.1007/s44307-023-00002-8.

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AbstractIn plants, autophagy is a conserved process by which intracellular materials, including damaged proteins, aggregates, and entire organelles, are trafficked to the vacuole for degradation, thus maintaining cellular homeostasis. The past few decades have seen extensive research into the core components of the central autophagy machinery and their physiological roles in plant growth and development as well as responses to biotic and abiotic stresses. Moreover, several methods have been established for monitoring autophagic activities in plants, and these have greatly facilitated plant aut

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Chung, Taijoon, Ye Eun Choi, Kyoungjun Song, and Hyera Jung. "How coat proteins shape autophagy in plant cells." Plant Physiology, September 11, 2024. http://dx.doi.org/10.1093/plphys/kiae426.

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Abstract Autophagy is a membrane trafficking pathway through which eukaryotic cells target their own cytoplasmic constituents for degradation in the lytic compartment. Proper biogenesis of autophagic organelles requires a conserved set of autophagy-related (ATG) proteins and their interacting factors, such as signalling phospholipid phosphatidylinositol 3-phosphate (PI3P) and coat complex II (COPII). The COPII machinery, which was originally identified as a membrane coat involved in the formation of vesicles budding from the endoplasmic reticulum, contributes to the initiation of autophagic me

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