💡 The #LH2 complex is required for #lightharvesting in many bacteria. In a recently published study, Konstantin M. Boyko et al. reveal that a colorless #carotenoid fully substitutes for colored pigments while maintaining the octameric symmetry of the complex.

➡️ doi.org/10.1002/1873-3468.70242

OsCCD4b regulates mesocotyl length and cell elongation through its cleavage product 3-OH-β-cyclocitral.

More than meets the eye: A #carotenoid cleavage product from a diverged CCD4 suppresses #mesocotyl elongation

✉ nph.onlinelibrary.wiley.com/doi/10.1111/...
#Letter by Zhang et al.

@WileyPlantSci #PlantScience

Image featuring a picture of a marine algae (Codium fragile) in the water, with the text "NEWS OF THE WEEK" prominently displayed at the top. Below, three lines of text in different colours provide translations of “A Special Carotenoid for Algae” in Italian and Spanish. The background is bright blue, with radiating lines that emphasise a vibrant, engaging theme related to science communication. The logo "DROPS OF SCIENCE" is positioned in the bottom right corner

🧪 News of the Week! A Special #Carotenoid for #Algae
follow the thread for the ITA and ESP links and for the image version with ALT capture
#DropsOfScience #Scicomm #STEM #Science #News
www.tumblr.com/dropsofscien...

Carotenoids | Linus Pauling Institute

When the remaining chlorophyll degrades, it reveals other pigments that were there all along, like Xanthophylls (yellow pigments in the #carotenoid family), flavonoids (yellow), & other carotenoids (like the orange beta-carotene & red lycopene pigments).

lpi.oregonstate.edu/mic/dietary-...
(5/11) 🧪

Great preprint by Lihanova et al. (2025) on the development of an activation tagging system in the green alga #Chlamydomonas, called enhancer-driven random gene overexpression (ERGO), allowing the discovery of a new gene (putative F-box protein) involved in the regulation of #carotenoid metabolism⬇️.

Plant-derived nutrient zeaxanthin improves immune cells’ ability to fight cancer – BioNews Central Zeaxanthin — a plant-derived carotenoid best known for protecting vision — may also strengthen immune responses by increasing the cancer-fighting activity of immune cells. ..

#Zeaxanthin — a #PlantDerived #carotenoid best known for protecting #vision — may also strengthen #ImmuneResponses by increasing the #CancerFighting activity of #ImmuneCells.
#AntiTumorImmunity

15 photos of individual tomato fruits (with different genotypes) showing different levels of coloration (from green to red)

Fried Green Tomatoes...🍅

Zhang et al show how #NitricOxide might delay #tomato fruit coloration by downregulating genes related to #chlorophyll degradation & #carotenoid biosynthesis in a manner dependent on the transcription factor, SlSPL6c

doi.org/10.1093/pcp/...

#FruitRipening
#PlantScience

#Interplay between #Shiraia and its #fruiting body-associated #Rhodococcus sp. No. 3 via #hypocrellin A and #carotenoid biosynthesis
doi.org/10.1080/2150...
@tandfresearch.bsky.social

In the journal Horticulture Research, a research team revealed that the mutation disrupts a critical enzyme in the isoprenoid pathway, impairing carotenoid accumulation.
#Tomato fruit #Carotenoid accumulation
Details: doi.org/10.1093/hr/u...

An American Robin and a Cardinal

Three maple leaves of various autumn colours.

The red of an #AmericanRobin and #Cardinal is an example of the reflection of #carotenoid pigments.
Carotenoid pigments are also revealed come autumn after the cooler temperatures cut off the supply of #green reflecting chlorophyll in leaves. This process gives us the #ChangingoftheLeaves.

Our #spectroscopy lab showing its best side 😍

This is one of our hollow-core fiber pump-probe experiments, specifically tailored for blue light excitation. That’s how we look at #carotenoid and #chlorophyll photophysics 🌱

#optics #science 🧪 #sciencesky #physics ⚛️ #photonics 💡 #photosynthesis

Syed Shah on LinkedIn: #blackcarrot #science #research #study #casestudy #carrot #antioxidant… Black Carrots Black carrots are a good source of anthocyanins, carotenoids and polyphenols. Black carrot strengthen the cardiovascular system and prevent…

Please check out my article on Black Carrots.

www.linkedin.com/posts/syed-s...

#blackcarrot #science #research #study #casestudy #antioxidant #vitamina #vitaminc #antiinflammatory #Kshiroddashkumar #kaurbhasin #arteries #capillaries #anthocyanin #cancer #anticancer #carotenoid #blackcarrots

@nordicoikos.bsky.social #NorthernCardinal #gutmicrobiome #signaling #carotenoid

Presentation at the #SOL2024 by Esteban Burbano from @ibmcp.bsky.social. He is talking about the #carotenoid and ABA biosynthesis in different #tomato tissues. GGPPS and PSY isoforms interact in a complex regulatory mechanism with compensatory balance between the different members.

Yellamaraju Sreelakshmi follows in the 2nd day at #SOL2024 presenting how an introgression with a dominant-negative allele of a #photropin gene (Nps1) enhances #carotenoid biosynthesis in RIN mutants. Introgressed Nps1xRIN present extended shelf life, high lycopene and high flavor volatiles content.

A couple of weeks ago with my colleagues at #LJMU we submitted a grant on the impact of #UV light and #Carotenoid on the #skin #microbiota of #frogs. Only now, I realise how privileged I am to be invited to partecipate in such elegant #project.

5/26のコミティアは【P50ab】でお待ちしております。

新刊のサンプルが成人向けな為、Blue Skyでは上げません（ビビリ）

健全なページだけも怖いので（ビビリ）

#COMITIA148
#コミティア148
#サークルNo
#CAROTENOID

Two-photo plate: Top photo is "Spring" and shows a small, mounded conifer with bright green foliage. Bottom photo is "Winter" and shows the same plant but the foliage is bronze.

Conifers get in on the #wintercolor act too. Cryptomeria japonica 'Tenzan' (#Cupressaceae), a dwarf cultivar, has green foliage in summer but turns bronze in the winter. The pigments are red carotenoids, viz. rhodoxanthin. Chloroplasts are converted into chromoplasts. #carotenoid #Botany 🌾🧪

Path to brown coloration of #diatoms discovered: Biosynthetic pathway of light-harvesting #carotenoid #fucoxanthin is surprisingly complex / Photoprotective pigments serve as precursors www.uni-mainz.de/presse/aktuell/16071_ENG... #biology #biochemistry #biosynthesis...

Impact of Cultivar Selection and Thermal Processing by Air Drying, Air Frying, and Deep Frying on the Carotenoid Content and Stability and Antioxidant Capacity in Carrots (Daucus carota L.) Epidemiological data suggest that consuming diets rich in carotenoids can reduce the risk of developing several non-communicable diseases. Thus, we investigated the extent to which carotenoid contents of foods can be increased by the choice of food matrices with naturally high carotenoid contents and thermal processing methods that maintain their stability. For this purpose, carotenoids of 15 carrot (Daucus carota L.) cultivars of different colors were assessed with UHPLC-DAD-ToF-MS. Additionally, the processing effects of air drying, air frying, and deep frying on carotenoid stability were applied. Cultivar selection accounted for up to 12.9-fold differences in total carotenoid content in differently colored carrots and a 2.2-fold difference between orange carrot cultivars. Air frying for 18 and 25 min and deep frying for 10 min led to a significant decrease in total carotenoid contents. TEAC assay of lipophilic extracts showed a correlation between carotenoid content and antioxidant capacity in untreated carrots.

How is the #carotenoid content of carrots affected by #cultivar selection and thermal #processing?
👉 Investigated by @igz_leibniz-scientists Amy Schmiedeskamp, @mschreiner8 and Susanne Baldermann, published in @JAgFoodChem
🔗#OpenAcces @ACSPublications

pubs.acs.org/doi/10.1021/ac…

Urban #kestrels are paler (less intense #carotenoid #colouration) and have more #ectoparasites than ruralarticle @PLOSONE by @PeSumas @Fitztitute @WanningerLab #Vienna , Marius Adrion & Anita Gamauf #urbanecology #raptorresearch

journals.plos.org/plosone/articl… conspecifics.New