#OrganDevelopment - Twitter Hashtag

ReproductiveHealthAustralia @RepHealthOz

5 months ago

🪺Chicken #hatcheries struggle to understand why some #eggs fail to hatch, as traditional #histology relies on thin 2D tissue sections that can miss critical abnormalities in #organdevelopment and body structure limiting the ability to diagnose early #embryo mortality.

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Stefan F. Wirth

@wirthstef

11 months ago

The #white #campion, #Silene #latifolia (#Caryophyllaceae), is common in #Berlin and prefers sunny #habitats. This article introduced aspects of its biology and also a scientific study on the regulation of its #reproductive #organdevelopment. #Silenelatifolia is native to Eurasia and North Africa, but is also found in #NorthAmerica, Australia, and New Zealand, where it arrived through human intervention. Therefore, it is considered an #invasive species and a neophyte. The #species thrives in sun exposed, nitrogen-rich locations, often in loamy or sandy #soils. It frequently occurs in areas with #ruderal #vegetation, i.e., in surroundings with debris from building materials or similar activities. The #whitecampion is mainly pollinated by moths, as it only opens its #flowers in the evening or, in rainy weather, in the later afternoon. Male and female flowers possess different calyx morphologies. Inbreeding depression mechanisms were discovered in both, male and female flowers. #Hermaphroditic flowers perform the following quite simple way to prevent inbreeding: The flowers #mature in a fixed order with regard to their #reproductiveorgans. First, the #male parts of the flowers mature and become reproductively active; only then can the female stigmata of the #carpel be fertilized by pollen transferred via #insects (#pollination). This mechanism evolved in connection with the prevention of #selfpollination. The #capsule #fruits are surrounded by an enlarged calyx, which is closed in bad weather. This serves to provide more surface area for the #wind to finally #disperse the seeds. The enlarged calyx can be translucent and appears quite decorative when viewed up close. The German name "#Lichtnelke" possibly refers to this aspect. The outside of this capsule is covered with teeth, which serve to attach to the fur or feathers of animals. The white campion is therefore #dispersed either by the wind or by #animals. I already mentioned that in hermaphroditic flowers the sex organs of the white campion become active one after the other, starting with the males. But how is it generally determined, when exactly the development of the sex organs actually occurs, and how is their #maturation #regulated? The authors, V. Bačovský et al. (2022), examined the #genetic influence on the regulatory pathways involved in #gynoecium #development. Specifically, the authors addressed the following question: "How do sex-linked genes shape the expression of regulatory cascades that lead to developmental differences between #sexes?" To contribute more knowledge to this, the authors sequenced #transcriptome of male flowers with fully developed #gynoecia. The scientists were able to attribute a promoting effect on the development of the gynoecium and, for example, on floral organ size to eight gene sequences. They finally "affect the expression of class B MADS-#boxflowergenes." © #StefanFWirth Berlin July 2025 Reference: Bačovský V, Čegan R, Tihlaříková E, Neděla V, Hudzieczek V, Smrža L, Janíček T, Beneš V, Hobza R. Chemical genetics in Silene latifolia elucidate regulatory pathways involved in gynoecium development. J Exp Bot. 2022 Apr 18;73(8):2354-2368. https://t.co/vq0TqYhBDC #Photos: Silene latifolia on an #urban dry #meadow near #park Goethepark in Berlin, © S.F. Wirth

wirthstef's tweet photo. The #white #campion, #Silene #latifolia (#Caryophyllaceae), is common in #Berlin and prefers sunny #habitats. This article introduced aspects of its biology and also a scientific study on the regulation of its #reproductive #organdevelopment.

#Silenelatifolia is native to Eurasia and North Africa, but is also found in #NorthAmerica, Australia, and New Zealand, where it arrived through human intervention. Therefore, it is considered an #invasive species and a neophyte.

The #species thrives in sun exposed, nitrogen-rich locations, often in loamy or sandy #soils. It frequently occurs in areas with #ruderal #vegetation, i.e., in surroundings with debris from building materials or similar activities.

The #whitecampion is mainly pollinated by moths, as it only opens its #flowers in the evening or, in rainy weather, in the later afternoon. Male and female flowers possess different calyx morphologies.
Inbreeding depression mechanisms were discovered in both, male and female flowers. #Hermaphroditic flowers perform the following quite simple way to prevent inbreeding:
The flowers #mature in a fixed order with regard to their #reproductiveorgans. First, the #male parts of the flowers mature and become reproductively active; only then can the female stigmata of the #carpel be fertilized by pollen transferred via #insects (#pollination). This mechanism evolved in connection with the prevention of #selfpollination.
The #capsule #fruits are surrounded by an enlarged calyx, which is closed in bad weather. This serves to provide more surface area for the #wind to finally #disperse the seeds. The enlarged calyx can be translucent and appears quite decorative when viewed up close. The German name "#Lichtnelke" possibly refers to this aspect. The outside of this capsule is covered with teeth, which serve to attach to the fur or feathers of animals. The white campion is therefore #dispersed either by the wind or by #animals.

I already mentioned that in hermaphroditic flowers the sex organs of the white campion become active one after the other, starting with the males. But how is it generally determined, when exactly the development of the sex organs actually occurs, and how is their #maturation #regulated? The authors, V. Bačovský et al. (2022), examined the #genetic influence on the regulatory pathways involved in #gynoecium #development. Specifically, the authors addressed the following question: "How do sex-linked genes shape the expression of regulatory cascades that lead to developmental differences between #sexes?" To contribute more knowledge to this, the authors sequenced #transcriptome of male flowers with fully developed #gynoecia. The scientists were able to attribute a promoting effect on the development of the gynoecium and, for example, on floral organ size to eight gene sequences. They finally "affect the expression of class B MADS-#boxflowergenes."

© #StefanFWirth Berlin July 2025

Reference:

Bačovský V, Čegan R, Tihlaříková E, Neděla V, Hudzieczek V, Smrža L, Janíček T, Beneš V, Hobza R. Chemical genetics in Silene latifolia elucidate regulatory pathways involved in gynoecium development. J Exp Bot. 2022 Apr 18;73(8):2354-2368.
https://t.co/vq0TqYhBDC

#Photos:

Silene latifolia on an #urban dry #meadow near #park Goethepark in Berlin, © S.F. Wirth

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EARA

@The_EARA

about 2 years ago

🇬🇧 🐟 Find out the value of #zebrafish in research into #OrganDevelopment at @TheCrick! #BOARD24 https://t.co/bEt2d8mzmP

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EARA

@The_EARA

over 2 years ago

👁️ A #zebrafish study at EARA members @IGCiencia & @mpicbg shed light on how eyes are formed, to provide insights into #OrganDevelopment & where it can go wrong in different disorders. #FishInResearch https://t.co/YaIO68p80f

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EARA_IE

@EARA_IE

almost 3 years ago

#Eyes #OrganDevelopment #Zebrafish #FishinResearch #AnimalResearch 👏🔬🐟👀

EARA

@The_EARA

almost 3 years ago

🐟 New #zebrafish research by EARA member institutions have shed light on how eyes are formed, providing key insights into understanding #OrganFormation and where it can go wrong in different disorders 👇 https://t.co/YaIO68oAaH

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EARA

@The_EARA

almost 3 years ago

🔬 A @IGCiencia @mpicbg study identified a new mechanism used by #zebrafish embryos to grow the #retina, to better understand the coordination of #OrganDevelopment & #BrainConditions. https://t.co/ZVSUvZfZvC

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GemPharmatech @GPharmatech

over 3 years ago

Research published in The Lancet Planetary Health recently on whether air pollution particles can enter the #fetus directly and how they affect fetal #organdevelopment. Read on: https://t.co/5YYW94hBYM #environment #lifescience

GPharmatech's tweet photo. Research published in The Lancet Planetary Health recently on whether air pollution particles can enter the #fetus directly and how they affect fetal #organdevelopment.
Read on: https://t.co/5YYW94hBYM

#environment #lifescience https://t.co/zltBRyqNff

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Phys.org

@physorg_com

over 3 years ago

Connectivity of 3D structures in tissues provides metrics for #organdevelopment @NaturePhysics https://t.co/kV4UwaWfsp

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Frontiers - Cell Biology @FrontCellDevBio

almost 4 years ago

Thanks to the Editors @BArtegiani, @KaiKretzschmar and @HendriksDelilah and to all the authors and reviewers who contributed to this collection! Editorial➡️https://t.co/8qIkBC5gPU eBook coming soon➡️https://t.co/V8lpneGTEN #StemCells #CellDifferentiation #OrganDevelopment

Kai Kretzschmar @KaiKretzschmar

almost 4 years ago

I am happy to share an editorial co-written with @BArtegiani and @HendriksDelilah finalizing our @FrontCellDevBio special issue on stem cells, development and model systems: https://t.co/YZZ8m2ahQc.

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Javier Santoyo @jsantoyo

over 4 years ago

Mapping single-cell-resolution cell phylogeny reveals cell population dynamics during organ development. #SingleCellResolution #OrganDevelopment https://t.co/RccC11ykfr @naturemethods

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the(sugar)science @thesugarscience

over 4 years ago

#FOXA #endodermal #organDevelopment Super stars @msanderlab @UCSanDiegoDRM

ESC & iPSC News

@ESC_iPSC_News

over 4 years ago

Using a human stem cell model of pancreas #differentiation, researchers in the @MSanderLab at @UCSanDiegoDRM suggest a dual role for FOXA in endodermal organ development. 💡 Read more: 🔗 https://t.co/7gijm2Vrla

ESC_iPSC_News's tweet photo. Using a human stem cell model of pancreas #differentiation, researchers in the @MSanderLab at @UCSanDiegoDRM suggest a dual role for FOXA in endodermal organ development. 💡

Read more: 🔗 https://t.co/7gijm2Vrla https://t.co/Z7uYFN2T4U

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McHeyzer-Williams @mmw_lmw

almost 7 years ago

#GeneExpression across mammalian #OrganDevelopment | Henrik Kaessmann #ZMBH @nature https://t.co/Cy0zg9BlUt

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McHeyzer-Williams @mmw_lmw

almost 7 years ago

#GeneExpression across mammalian #OrganDevelopment | Henrik Kaessmann #ZMBH @nature https://t.co/Cy0zg9BlUt

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McHeyzer-Williams @mmw_lmw

almost 7 years ago

#GeneExpression across mammalian #OrganDevelopment | Henrik Kaessmann #ZMBH @nature https://t.co/Cy0zg9BlUt

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Anant Mamidi @AnantMamidi

over 7 years ago

An unique opportunity that i got today, thanks to Copenhagen University and Novo Nordisk Foundation Center for Stem Cell Biology. My interview featured in DanStem news letter. https://t.co/V4xVQsKUcD #Nature #basicresearch #pancreas #organdevelopment #…https://t.co/XFZUq4bca8

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