ArticleProtoplasma2021
Ultrastructural characterization of microlipophagy induced by the interaction of vacuoles and lipid bodies around generative and sperm cells in Arabidopsis pollen.
Article in Protoplasma, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Genetic defects in the CDP-choline pathway for phosphatidylcholine biosynthesis cannot be transmitted to offspring via male gametophytes owing to interruption of autophagy-like processes required for pollen germination in Arabidopsis thaliana.Journal of plant research · 2026Article
- Review
- Overexpression of SlATG8f gene enhanced autophagy and pollen protection in tomato under heat stress.Scientific reports · 2024Article
- Observation of Vacuoles in Arabidopsis Developing Pollen Grains with Whole-Cell Electron Tomography.Methods in molecular biology (Clifton, N.J.) · 2024Article
- CALEOSIN 1 interaction with AUTOPHAGY-RELATED PROTEIN 8 facilitates lipid droplet microautophagy in seedlings.Plant physiology · 2023Article
- Gelatin-based cell culture device for construction and X-ray irradiation of a three-dimensional oral cancer model.Analytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2023Article
- Maintenance of Methyl-Esterified Pectin Level in Pollen Mother-Cell Stages Is Required for Microspore Development.Plants (Basel, Switzerland) · 2023Article
- ER-phagy: mechanisms, regulation, and diseases connected to the lysosomal clearance of the endoplasmic reticulum.Physiological reviews · 2022Review
- A high-throughput quantitative method to evaluate peroxisome-chloroplast interactions inFrontiers in plant science · 2022Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
During pollen maturation, various organelles change their distribution and function during development as male gametophytes. We analyzed the behavior of lipid bodies and vacuoles involved in lipophagy in Arabidopsis pollen using serial section SEM and conventional TEM. At the bicellular pollen stage, lipid bodies in the vegetative cells lined up at the surface of the generative cell. Vacuoles then tightly attached, drew in, and degraded the lipid bodies and eventually occupied the space of the lipid bodies. Degradation of lipid began before transfer of the entire contents of the lipid body. At the tricellular stage, vacuoles instead of lipid bodies surrounded the sperm cells. The degradation of lipid bodies is morphologically considered microautophagy. The atg2-1 Arabidopsis mutant is deficient in one autophagy-related gene (ATG). In this mutant, the assembly of vacuoles around sperm cells was sparser than that in wild-type pollen. The deficiency of ATG2 likely prevents or slows lipid degradation, although it does not prevent contact between organelles. These results demonstrate the involvement of microlipophagy in the pollen development of Arabidopsis.
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Registered trials
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