ArticleProtoplasma2014
Classical macroautophagy in Lobivia rauschii (Cactaceae) and possible plastidial autophagy in Tillandsia albida (Bromeliaceae) tapetum cells.
Article in Protoplasma, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 35 citations in OpenAlex.
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- Ultrastructure of Terpene and Polyphenol Synthesis in the Bark ofFrontiers in microbiology · 2022Article
- Occurrence of autophagy during pioneer root and stem development in Populus trichocarpa.Planta · 2019Article
- Female gametophyte development in Sedum sediforme (Jacq.) Pau (Crassulaceae): an anatomical, cytochemical and ultrastructural analysis.Protoplasma · 2019Article
- Tapetal-Delayed Programmed Cell Death (PCD) and Oxidative Stress-Induced Male Sterility ofInternational journal of molecular sciences · 2018Article
- Resin secretory canals in Protium heptaphyllum (Aubl.) Marchand. (Burseraceae): a tridimensional branched and anastomosed system.Protoplasma · 2018Article
- Ultrastructural and cytochemical aspects of female gametophyte development in Sedum hispanicum L. (Crassulaceae).Protoplasma · 2018Article
- Macroautophagy occurs in distal TMV-uninfected root tip tissue of tomato taking place systemic PCD.Protoplasma · 2018Article
- Destroy to create.Protoplasma · 2018Article
- The effects of elevated COEcology and evolution · 2017Article
- Floral nectaries in Sapindaceae s.s.: morphological and structural diversity, and their systematic implications.Protoplasma · 2017Article
- Developmental and ultrastructural characters of the pollen grains and tapetum in species of Nymphaea subgenus Hydrocallis.Protoplasma · 2017Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The tapetum in anthers is a tissue that undergoes programmed cell death (PCD) during the production of pollen. We observed two types of autophagy prior to cell death. In Lobivia rauschii (Cactaceae), tapetum cells showed plant-type autophagosomes-autolysosomes, which have been found previously exclusively in root meristem cells. The autophagic structures were formed by a network of tubules which apparently merged laterally, thereby sequestering a portion of the cytoplasm. The organelles observed in the sequestered material included multilamellar bodies, which have not been reported earlier in these organelles. By contrast, Tillandsia albida (Bromeliaceae) tapetum cells contained no such organelles but showed plastids that might possibly carry out autophagy, as they contained portions of the cytoplasm similar to the phenomenon reported earlier in Phaseolus and Dendrobium. However, the ultrastructure of the T. albida plastids was different from that in the previous reports. It is concluded that in L. rauschii classical plant macroautophagy was involved in degradation of the cytoplasm, while in T. albida such classical macroautophagy was not observed. Instead, the data in T. albida suggested the hypothesis that plastids are able to carry out degradation of the cytoplasm.
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