Evidence map›Paper›PMID 16100336›Full record

ArticleThe Plant cell2005

Rab11 GTPase-regulated membrane trafficking is crucial for tip-focused pollen tube growth in tobacco.

Barend H J de Graaf, Alice Y Cheung, Tatyana Andreyeva, Kathryn Levasseur, Marcia Kieliszewski, Hen-ming Wu

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
5.4field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 193 citations in OpenAlex.

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  20. Journal of cell science · 2020
    Article

35 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Barend H J de GraafDepartment of Biochemistry and Molecular Biology, University of Massachusetts, Lederle Graduate Research Center, Amherst, Massachusetts 01003, USA.
Alice Y Cheung
Tatyana Andreyeva
Kathryn Levasseur
Marcia Kieliszewski
Hen-ming Wu
University of Massachusetts Amherst · USOhio University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pollen tube growth is a polarized growth process whereby the tip-growing tubes elongate within the female reproductive tissues to deliver sperm cells to the ovules for fertilization. Efficient and regulated membrane trafficking activity incorporates membrane and deposits cell wall molecules at the tube apex and is believed to underlie rapid and focused growth at the pollen tube tip. Rab GTPases, key regulators of membrane trafficking, are candidates for important roles in regulating pollen tube growth. We show that a green fluorescent protein-tagged Nicotiana tabacum pollen-expressed Rab11b is localized predominantly to an inverted cone-shaped region in the pollen tube tip that is almost exclusively occupied by transport vesicles. Altering Rab11 activity by expressing either a constitutive active or a dominant negative variant of Rab11b in pollen resulted in reduced tube growth rate, meandering pollen tubes, and reduced male fertility. These mutant GTPases also inhibited targeting of exocytic and recycled vesicles to the pollen tube inverted cone region and compromised the delivery of secretory and cell wall proteins to the extracellular matrix. Properly regulated Rab11 GTPase activity is therefore essential for tip-focused membrane trafficking and growth at the pollen tube apex and is pivotal to reproductive success.

Indexed as

ActinsBiological TransportCell MembraneCell WallEndocytosisFlowersMembrane ProteinsMolecular Sequence DataMutationNicotianaPlant Proteinsrab11 GTP-Binding Proteinsrab GTP-Binding ProteinsRecombinant Fusion ProteinsActinsMembrane ProteinsPlant Proteinsrab11 GTP-Binding Proteinsrab GTP-Binding ProteinsRecombinant Fusion Proteins

Identifiers

PMID16100336
PMCPMC1197435
OpenAlexW2148261917

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.