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An Automated Lab‐On‐A‐Chip Approach for Pollen Tube Growth Manipulation in a Controlled Chemical Environment

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · 5d

An Automated Lab‐On‐A‐Chip Approach for Pollen Tube Growth Manipulation in a Controlled Chemical Environment - Zhu - Advanced Science - Wiley Online Library advanced.onlinelibrary.wiley.com/doi/10.1002/...

Here, a microfluidic-based robotic lab-on-a-chip (LoC) device is presented for automated, continuous-flow investigation and manipulation of single pollen tube growth under precisely controlled chemic....

advanced.onlinelibrary.wiley.com

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · 9d

Functional genetics of rice PISTILLATA genes reveals new roles and target genes in flowering time, female fertility, and parthenocarpy - Zamzam - 2025. onlinelibrary.wiley.com/doi/10.1111/...

Functional genetics of rice PISTILLATA genes reveals new roles and target genes in flowering time, female fertility, and parthenocarpy

Rice lodicules are small fleshy floral petal homologs that enable floret opening and closing, for anthesis and seed maturation. We provide insights on OsMADS2 and OsMADS4, expanding their second and ....

Plant’s developmental decision to either abort a flower or set seed

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · 21d

Plant’s developmental decision to either abort a flower or set seed
www.cell.com/trends/plant...

A significant proportion of flowers in crop plants fail to produce seeds, particularly under heat and drought stress. This outcome reflects a regulated developmental process of reproductive abortion, ...

www.cell.com

a poster with minions and the words let the countdown begin

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Sep 5

📢📢save the dates for our 28th ICSPR meeting in Chengdu, China🇨🇳!!
👉5-8 september 2026, co-chaired by Professors Weicai Yang, Li-Jia Qu, Honghui Lin and Hongju Li.
Stay tuned! more details coming soon!
#ICSPR2026 🌱😉

ALT: a poster with minions and the words let the countdown begin

media.tenor.com

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Sep 1

Spatial organization and trafficking dynamics of ANX/BUPS-RALF-LLG signaling complexes during pollen tube growth
link.springer.com/article/10.1...

Spatial organization and trafficking dynamics of ANX/BUPS-RALF-LLG signaling complexes during pollen tube growth - Plant Reproduction

Plant Reproduction - Recruitment of RALFs and LLGs for assembly at the apical plasma membrane of pollen tubes is orchestrated by ANXs/BUPSs through endomembrane trafficking. Pollen tube growth...

Transgenerational polarity axis inheritance during Ceratopteris embryogenesis

Reposted by International Association of Sexual Plant Reproduction Research

Dolf Weijers @dolfweijers.bsky.social · Sep 1

We are happy to present the magnum opus of Sjoerd Woudenberg, at the close of his PhD – Transgenerational inheritance of the polarity axis in a fern embryo…a thread (1/17)

tinyurl.com/4y53xekv

For sexually reproducing organisms to pass on their genetic information, progeny must successfully establish. Various life history strategies have evolved, using either dispersal of large numbers of p...

tinyurl.com

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Reposted by International Association of Sexual Plant Reproduction Research

闵娅(Min Ya; Minya) PhD @minyaaa.bsky.social · Aug 22

#mimuluspropaganda!!!!

Nick Desnoyer @nickdesnoyer.bsky.social · Aug 22

Friday Flower 001: Mimulus lewisii 🌸✨

Monkeyflowers are masterpieces of design with nectar-guide spots formed by an activator–inhibitor system of MYB transcription factors. These generate reaction–diffusion patterns across the ventral petal.

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Aug 22

Kinesins control male germ unit assembly for sperm delivery in Arabidopsis
www.nature.com/articles/s41...

Kinesins control male germ unit assembly for sperm delivery in Arabidopsis - Nature Plants

Here Chang et al. found that two kinesins, HUG1 and HUG2, form a kinesin cage encasing the vegetative nucleus and a distinctive double-layered kinesin microtubule cage around the generative cell, teth...

The tri-molecular interaction controlling plant cell structure

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Aug 14

The tri-molecular interaction controlling plant cell structure
www.sciencedirect.com/science/arti...

The plant cell wall is a dynamic envelope crucial for cell structure. Recent insights highlight the pivotal roles of RAPID ALKALINIZATION FACTOR (RALF…

www.sciencedirect.com

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Aug 13

Maternal environmental effects and climate‐smart seeds: unlocking epigenetic inheritance for crop innovation in the seed industry - Brunel‐Muguet - 2025 - The Plant Journal - Wiley Online Library onlinelibrary.wiley.com/doi/10.1111/...

Maternal environmental effects and climate‐smart seeds: unlocking epigenetic inheritance for crop innovation in the seed industry

Maternal stress memory is a reflection of the maternal environment to the offspring. Plant seeds can thus inherit tractable stress tolerance traits, meaning that the maternal environment allows the s...

Targeted Overexpression of CBF1 Using a Pollen-specific Promoter Enhances Fertility in Heat-stressed Arabidopsis - Journal of Plant Biology

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Aug 9

Targeted Overexpression of CBF1 Using a Pollen-specific Promoter Enhances Fertility in Heat-stressed Arabidopsis
link.springer.com/article/10.1...

Rising temperatures linked to global climate change pose a major threat to crop yield stability. Sexual reproduction in angiosperms is mediated by the female gametophyte and the male gametophyte (poll...

Inspiration from apomictic species of Rutaceae: AGL11-FIE module induces autonomous development of maize embryo and endosperm without fertilization - Theoretical and Applied Genetics

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Aug 8

Inspiration from apomictic species of Rutaceae: AGL11-FIE module induces autonomous development of maize embryo and endosperm without fertilization
link.springer.com/article/10.1...

Apomixis is a form of asexual reproduction that produces offspring with the same genetic material as the female parent. Introducing apomixis into major food crops would revolutionize agricultural bree...

Kinesin proteins HUG1 and HUG2 are essential for the formation and transportation of male germ units in Arabidopsis pollen tubes - Nature Plants

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Aug 8

Kinesin proteins HUG1 and HUG2 are essential for the formation and transportation of male germ units in Arabidopsis pollen tubes
www.nature.com/articles/s41...

In flowering plants, the sperm cells travel attached to the vegetative nucleus, forming a unit known as the male germ unit in pollen. This study reports that two kinesins, HUG1 and HUG2, are key for a...

The synaptonemal complex central element SCEP3 interlinks synapsis initiation and crossover formation in Arabidopsis thaliana - Nature Plants

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jul 23

The synaptonemal complex central element SCEP3 interlinks synapsis initiation and crossover formation in Arabidopsis thaliana
www.nature.com/articles/s41...

This study identifies SCEP3 as a conserved central element of the plant synaptonemal complex. SCEP3 is critical for synapsis, heterochiasmy and crossover interference. SCEP3 also promotes a subset of ...

The cenH3 assembly factor ZmKNL2 boosts haploid induction in maize

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jul 18

The cenH3 assembly factor ZmKNL2 boosts haploid induction in maize
onlinelibrary.wiley.com/doi/full/10....

Click on the article title to read more.

BONOBO transcription factors positively regulate STICKY GENERATIVE CELL for generative cell internalisation in Arabidopsis - Plant Reproduction

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jul 16

BONOBO transcription factors positively regulate STICKY GENERATIVE CELL for generative cell internalisation in Arabidopsis
link.springer.com/article/10.1...

Key message Generative cell internalisation establishes distinctive ‘cell-within-a-cell’ pollen organization in angiosperms. Comparative and transgenic expression analyses provide valuable insights in...

In Vitro Live Cell Imaging Reveals Nuclear Dynamics and Role of the Cytoskeleton During Asymmetric Division of Pollen Mitosis I in Nicotiana Benthamiana

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Reposted by International Association of Sexual Plant Reproduction Research

Nat Prunet @nat-prunet.bsky.social · Jun 27

Incredible diversity of #pollen grains!

Pollen autofluorescence acquired with @zeiss-microscopy.bsky.social #superresolution Airyscan & color-coded for depth

#microscopy #bioimaging #bioart #sciart #botany #plantscience #fluorescencefriday

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jun 26

In Vitro Live Cell Imaging Reveals Nuclear Dynamics and Role of the Cytoskeleton During Asymmetric Division of Pollen Mitosis I in Nicotiana Benthamiana - Mizuta - Cytoskeleton - Wiley Online Library onlinelibrary.wiley.com/doi/10.1002/...

Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large veg...

Brassinosteroids promote pollen tube guidance by coordinating gene expression in male and female reproductive tissues

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jun 22

Brassinosteroids promote pollen tube guidance by coordinating gene expression in male and female reproductive tissues
www.cell.com/cell-reports...

Brassinosteroids (BRs) were originally isolated from pollen grains, but their role in plant reproduction remains a mystery. Matsuura-Tokita et al. show that biologically active BRs are detected in rep...

www.cell.com

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jun 16

Semi-automated high content analysis of pollen performance using tubetracker
link.springer.com/article/10.1...

Semi-automated high content analysis of pollen performance using tubetracker - Plant Reproduction

Key message TubeTracker provides a method to partially automate analysis of pollen tube growth using live imaging. Abstract Pollen function is critical for successful plant reproduction and crop produ...

The regulation of vacuole morphology in stigma papilla cells is involved in water transfer to pollen in Arabidopsis thaliana - Plant Reproduction

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jun 10

The regulation of vacuole morphology in stigma papilla cells is involved in water transfer to pollen in Arabidopsis thaliana
link.springer.com/article/10.1...

Key message The stigma papilla cells of Arabidopsis thaliana control water transport to pollen by regulating the morphology of vacuoles in papilla cells after pollination. Abstract Pollen hydration is...

ROS regulation of stigma papillae growth and maturation in Arabidopsis thaliana - Plant Reproduction

International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jun 10

ROS regulation of stigma papillae growth and maturation in Arabidopsis thaliana
link.springer.com/article/10.1...

Key message Superoxide accumulates during early stigma papillae growth stages in Arabidopsis. Abstract Highly specialized stigma papillae cells play a critical role in plant reproduction. Their main p...

Anisotropic diffuse growth in Arabidopsis thaliana stigma papillae - Plant Reproduction

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International Association of Sexual Plant Reproduction Research @iasprr.bsky.social · Jun 7

Anisotropic diffuse growth in Arabidopsis thaliana stigma papillae
link.springer.com/article/10.1...

Key message Arabidopsis stigma papillae grow by a diffuse growth mechanism rather than by tip growth. Abstract In angiosperms, the stigma is the first point of contact between the pollen (male) and pi...