International Association of Sexual Plant Reproduction Research

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

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

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

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...

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

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...

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

The cenH3 assembly factor ZmKNL2 boosts haploid induction in maize Click on the article title to read more.

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

BONOBO transcription factors positively regulate STICKY GENERATIVE CELL for generative cell internalisation in Arabidopsis - Plant Reproduction Key message Generative cell internalisation establishes distinctive ‘cell-within-a-cell’ pollen organization in angiosperms. Comparative and transgenic expression analyses provide valuable insights in...

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

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

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

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/...

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

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

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...

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

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

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...

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

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

Anisotropic diffuse growth in Arabidopsis thaliana stigma papillae - Plant Reproduction 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...

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

Stomatal transpiration and rapid programmed cell death ☠️ triggered by lowered ambient humidity causes anther tissue collapse for effective pollen release !

Happy to be part of this great PNAS story with @kampova.bsky.social, Matyáš Fendrych, and @svosolsobe.bsky.social! www.pnas.org/doi/10.1073/...

Sexual reproduction in land plants: an evolutionary perspective - Plant Reproduction Key message We link key aspects of land plant reproductive evolution and detail how successive molecular changes leading to novel tissues and organs require co-evolution of communication systems betwe...

Sexual reproduction in land plants: an evolutionary perspective
link.springer.com/article/10.1...

A pick for your next journal club? We discovered a gene regulatory network involving RALF12 and ROS leading to PCD of a single cell (synergid) within the ovule. www.nature.com/articles/s41...

The image shows the three cells of a maize egg apparatus (synergids on top and egg cell below).

A two-step self-pollination mechanism maximizes fertility in Brassicaceae Self-pollination in self-compatible plant species often occurs prior to flower opening. By tracking the temporal progress of pollination in Arabidopsi…

A two-step self-pollination mechanism maximizes fertility in Brassicaceae
www.sciencedirect.com/science/arti...

Fertilization-dependent phloem end gate regulates seed size Liu et al. identify a fertilization-dependent “gate,” a new plant tissue located at the ovule, which is open when a plant fertilizes and stays closed when a plant fails fertilization, having an essent...

Fertilization-dependent phloem end gate regulates seed size: Current Biology www.cell.com/current-biol...

We are happy to announce the V International Conference on Apomixis 2025, from 16-19 September in Montpellier, France💮🌱 #PlantReproduction #Apomixis
More information? 👇
www.alphavisa.com/apomixis/2025/

Want to see your amazing plant reproduction picture on the cover of this fantastic journal @springernature.com? 🤩🌱
We are looking for it!
📸Take part in our contest and get the prize!
More info? 👉visit our website!😉

📢📢Happy to announce that our 28th ICSPR meeting will be held in Chengdu, China🇨🇳!, co-chaired by Professors Weicai Yang, Li-Jia Qu, Honghui Lin and Hongju Li.
Stay tuned! more details coming soon!
#ICSPR2026 🌱😉 (foto: Zain Lee, in Unsplash).

CSHA meeting in May is approaching!
📢Abstract deadline extended until March 28.
csh-asia.org?content/2653

📢The abstract deadline (March 7) for CSHA meeting in May is approaching!
👉🏽 www.csh-asia.org?content/2653

📢📢The International ICIPS symposium "Evolution of Plant Reproduction" organized by @icips.bsky.social will take place near the botanical garden of Berlin (Germany) from March 25-28, 2025.

🟠To register: dfg-icips.org/berlin2025/

🟠Deadline registration: 14.02.2025

Hormonal regulation and crosstalk during early endosperm and seed coat development - Plant Reproduction Key message This review covers the latest developments on the regulation of early seed development by phytohormones. Abstract The development of seeds in flowering plants starts with the fertilization...

Our review paper is now published! 🎉

"Hormonal regulation and crosstalk during early endosperm and seed coat development"

Check it out and let us know your thoughts! 🌱

link.springer.com/article/10.1...

Before ending 2024, we are happy to announce the CSHA2025 Plant Reproduction meeting in Japan🇯🇵🌱. Save the dates! 🤩 #PlantReproduction #CSHA
More information? 👇
www.csh-asia.org?content/2653

The beauty of Arabidopsis lies in the depth of knowledge we’ve gained from it- a collective achievement of thousands of scientists 🔬

These flowers showcase that knowledge and the power of biotechnology 💚

The rice microRNA159–SPOROCYTELESS EAR2 module regulates starch biosynthesis during pollen development and maintains male fertility A regulatory cascade comprising a microRNA, two transcriptional regulators and a starch biosynthesis enzyme is required for starch biosynthesis during poll

The rice microRNA159–SPOROCYTELESS EAR2 module regulates starch biosynthesis during pollen development and maintains male fertility
academic.oup.com/plcell/advan...

A viscoelastic–plastic deformation model of hemisphere-like tip growth in Arabidopsis zygotes | Quantitative Plant Biology | Cambridge Core A viscoelastic–plastic deformation model of hemisphere-like tip growth in Arabidopsis zygotes - Volume 5

A viscoelastic–plastic deformation model of hemisphere-like tip growth in Arabidopsis zygotes
www.cambridge.org/core/journal...

Integrating single nuclei and bulk RNA sequencing in rice shoot apical meristems uncovers candidate early floral transition gene networks - Plant Reproduction Key message We describe transcriptional dynamics at the rice shoot apex by integrating time resolved single nuclei RNA-seq with bulk RNA-seq data. Abstract In rice, short days trigger floral transitio...

Integrating single nuclei and bulk RNA sequencing in rice shoot apical meristems uncovers candidate early floral transition gene networks
link.springer.com/article/10.1...