ArticlePlant cell reports2020
A triticale tapetal non-specific lipid transfer protein (nsLTP) is translocated to the pollen cell wall.
Article in Plant cell reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 17 citations in OpenAlex.
- Targeting the tomato fruit epidermis using the nsLTP2 promoter: a molecular tool to study the composition, architecture and properties of the cuticle.Plant methods · 2026Article
- Tapetum uncommon behavior, orbicule development, and pollenkitt: mini-review, with new data on orbicule simulations.Protoplasma · 2025Review
- Developmental and quantitative expression profile of the six pollen allergens of mugwort (Artemisia vulgaris L.).BMC plant biology · 2025Article
- The non-specific lipid transfer protein McLTPII.9 ofFrontiers in plant science · 2023Article
- Lipid transfer proteins involved in plant-pathogen interactions and their molecular mechanisms.Molecular plant pathology · 2022Review
- Overexpression ofInternational journal of molecular sciences · 2022Article
- The proteome of developing barley anthers during meiotic prophase I.Journal of experimental botany · 2022Article
- The Toughest Material in the Plant Kingdom: An Update on Sporopollenin.Frontiers in plant science · 2021Review
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Authors and funding
14 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageA Triticeae type III non-specific lipid transfer protein (nsLTP) was shown for the first time to be translocated from the anther tapetum to the pollen cell wall. Two anther-expressed non-specific lipid transfer proteins (nsLTPs) were identified in triticale (× Triticosecale Wittmack). LTPc3a and LTPc3b contain a putative signal peptide sequence and eight cysteine residues in a C-Xn-C-Xn-CC-Xn-CXC-Xn-C-Xn-C pattern. These proteins belong to the type III class of nsLTPs which are expressed exclusively in the inflorescence of angiosperms. The level of LTPc3 transcript in the anther was highest at the tetrad and uninucleate microspore stages, and absent in mature pollen. In situ hybridization showed that LTPc3 was expressed in the tapetal layer of the developing triticale anther. The expression of the LTPc3 protein peaked at the uninucleate microspore stage, but was also found to be associated with the mature pollen. Accordingly, an LTPc3a::GFP translational fusion expressed in transgenic Brachypodium distachyon first showed activity in the tapetum, then in the anther locule, and later on the mature pollen grain. Altogether, these results represent the first detailed characterization of a Triticeae anther-expressed type III nsLTP with possible roles in pollen cell wall formation.
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