Evidence map›Paper›PMID 19926683›Full record

ArticleJournal of experimental botany2010

Sporophytic control of pollen tube growth and guidance in maize.

Andreas Lausser, Irina Kliwer, Kanok-orn Srilunchang, Thomas Dresselhaus

Abstract read
In one paragraph

Article in Journal of experimental botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
–field-weighted citation impact
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

36 citing papers in PubMed.

  1. Article
  2. Review
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  7. Article
  8. Article
  9. Quantification of Species-Preferential Micropylar Chemoattraction inInternational journal of molecular sciences · 2022
    Article
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  11. Review
  12. Review
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  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. A Pectin MethylesteraseFrontiers in plant science · 2017
    Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Andreas LausserCell Biology and Plant Biochemistry, University of Regensburg, Universitätsstrasse 31, D-93053 Regensburg, Germany.
Irina Kliwer
Kanok-orn Srilunchang
Thomas Dresselhaus

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pollen tube germination, growth, and guidance (progamic phase) culminating in sperm discharge is a multi-stage process including complex interactions between the male gametophyte as well as sporophytic tissues and the female gametophyte (embryo sac), respectively. Inter- and intra-specific crossing barriers in maize and Tripsacum have been studied and a precise description of progamic pollen tube development in maize is reported here. It was found that pollen germination and initial tube growth are rather unspecific, but an early, first crossing barrier was detected before arrival at the transmitting tract. Pollination of maize silks with Tripsacum pollen and incompatible pollination of Ga1s/Ga1s-maize silks with ga1-maize pollen revealed another two incompatibility barriers, namely transmitting tract mistargeting and insufficient growth support. Attraction and growth support by the transmitting tract seem to play key roles for progamic pollen tube growth. After leaving transmitting tracts, pollen tubes have to navigate across the ovule in the ovular cavity. Pollination of an embryo sac-less maize RNAi-line allowed the role of the female gametophyte for pollen tube guidance to be determined in maize. It was found that female gametophyte controlled guidance is restricted to a small region around the micropyle, approximately 50-100 microm in diameter. This area is comparable to the area of influence of previously described ZmEA1-based short-range female gametophyte signalling. In conclusion, the progamic phase is almost completely under sporophytic control in maize.

Indexed as

Germ Cells, PlantGerminationInbreedingModels, BiologicalPollen TubePollinationSeedsZea mays

Identifiers

PMID19926683
PMCPMC2814102

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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.