The secretion and retraction processes of pollination drops of ancient

Wei Zhou, Liyan Gong, Xiaobing Wang, Nawen Li, Xin Zhang, Jianjun Liu

Abstract read

In one paragraph

Article in Frontiers in plant science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

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0citing 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

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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

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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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.

Wei ZhouSchool of Art and Design, Guilin University of Electronic Technology, Guilin, Guangxi, China.

Liyan GongSchool of Art and Design, Guilin University of Electronic Technology, Guilin, Guangxi, China.

Xiaobing WangSchool of Life Science and Technology, Xinxiang University, Xinxiang, Henan, China.

Nawen LiSchool of Art and Design, Guilin University of Electronic Technology, Guilin, Guangxi, China.

Xin ZhangKey Laboratory of Silviculture on the Loess Plateau State Forestry Administration, College of Forestry, Northwest A&F University, Yangling, Shaanxi, China.

Jianjun LiuKey Laboratory of Silviculture on the Loess Plateau State Forestry Administration, College of Forestry, Northwest A&F University, Yangling, Shaanxi, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: The pollination drop (PD) is an important ovular secretion that occurs during the pollination stage in gymnosperms. Methods: In this study, ancient Results: In a natural setting, PDs were secreted in the early morning and retracted around noon, with the appearance time extending equally to both sides of 6 a.m., and there was a daily circadian rhythm of the variations. Similar changes were observed under Discussion: The secretion and retraction of PDs may be two mutually exclusive processes that cannot be considered together. The younger the tree was, the stronger the driving force of secretion, as demonstrated by the higher PD secretion rate, larger surface area, and greater duration. The older the tree was, the stronger the driving force of retraction, as demonstrated by the significantly higher retraction rate of PDs after pollination. Each process has its own advantages and disadvantages in terms of pollination efficiency, but the decrease in the PD secretion rate by ancient

Indexed as

ancient gymnospermPlatycladus orientalispollenpollination dropretractionsecretion

Identifiers

PMID41234318

DOI10.3389/fpls.2025.1669052

PMCPMC12605178

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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.