As daylight changes, photoreceptors in birds' brains detect the shift in daylight, triggering physical changes that prep them for the rigors of migration.
Learn more: haikubox.com/blogs/newsle...
#BirdMigration #photoperiod #Haikubox #SpringMigration
🔥 GUNK 🔥
Heavy WLD-leaning effects, deeply sedative and ideal for unwinding.
Terps run candied fruit → lavender → dirty gassy funk 😈
Gush Mints × Spritzer
Photoflower Fem | 8–10 weeks | In & Out
#Gunk #TerpLovers #Photoperiod
New #OpenAccess work in #RESPhysEnt
Influence of #temperature & light on #development of #moth larvae: Different response in the sister species #Orthosia gothica & O. cerasi
doi.org/10.1111/phen.70030
#Phenology #Photoperiod
@wybouw.bsky.social @tbuescher.bsky.social @tobybruce.bsky.social
Yufeng Gong explored how urban #ArtificialLight affects the spring budburst and its #SpatialVariation within species distribution.
#Urbanization | #SpringPhenology | #Photoperiod
@mapjournals.bsky.social
doi.org/10.1093/jpe/...
(a) A map showing the distribution of the experimental sites (orange dots) along the south–north latitudinal gradient across Europe: Spain (Rascafría), Belgium (Gontrode), southern Sweden (Alnarp) and northern Finland (Kevo).
⭐ Flowering responses of the #FragariaVesca ➡️ local climate and reduced precipitation along a European latitudinal gradient
#Drought | #GrowingDegreeDays | #OnsetOfFlowering | #Photoperiod | #PlantPhenology
@mapjournals.bsky.social
doi.org/10.1093/jpe/...
Mitigating #corm size-related constraints in #Gladiolus through #daylength extension for improved spike and corm production.
To read this new article in JHSB, visit: doi.org/10.1080/1462...
#photoperiod #Flowers
Gray Tree Frogs Trigger Winter Freeze by Daylight, Not Cold
Gray tree frogs trigger winter prep by daylight alone, storing up to 14 × more glycogen and swelling livers to three‑to‑four times normal size, even when temperatures stay mild. getnews.me/gray-tree-frogs-trigger-... #graytreefrogs #photoperiod #climatechange
A hypothetical model explaining how the bZIP3–AS1–CO complex regulates the temporal transcriptional regulation of FT. (A) Schematic representation of FT transcriptional regulation by bZIP3, AS1, and CO proteins. (B) Temporal regulation of FT expression by the function of bZIP3-AS1-CO complex in a photoperiod-dependent manner.
💡Lee et al. demonstrate that the bZIP3 #transcription factor is important for CO-induced FT expression under long #photoperiod conditions in #Arabidopsis.
📑 Read this #OpenAccess paper-and more-here!
➡️ doi.org/10.1111/jipb...
#PlantScience #JIPB #flowering
The distribution of photoperiod treatments (a) and three temperature treatments (b). Diagram of sampling locations for trees near (AL) and away from (NoAL) artificial light, two photoperiod treatments, i.e. P8 and P14, and three temperature treatments, i.e. TA refers to the ambient temperature treatment, T+2, T+5 and T+10 refer to the 2, 5 and 10 °C warming treatments, respectively.
Urban #ArtificialLight (AL & NoAL) ➡️ #SpringBudburst and its #SpatialVariation within species distribution❓
Results:
1️⃣ Temperature responsiveness: NoAL > AL;
2️⃣ Twigs #Photoperiod limitation: NoAL < AL;
3️⃣ Heat requirement: NoAL < AL.
doi.org/10.1093/jpe/...
In a study published in Horticulture Research, scientists from Nanjing Agricultural University have uncovered how skeleton photoperiods interfere with the circadian system and photosynthetic performance of tea plants.
#Circadian clock #Photoperiod
Details: doi.org/10.1093/hr/u...
Proposed model for the LUX and SWI3C regulation of photoperiod sensitivity in LD WT, SD WT, and LD/SD lux swi3c mutant plants.
Wang et al. reveal new insights into how the LUX-SWI3C module regulates #photoperiod sensitivity in #Arabidopsis at the #epigenetic level.
doi.org/10.1111/jipb...
#PlantScience #Flowering
In HR, by combining light cycle experiments with hormone treatments and detailed physiological analyses, the team showed that short-day photoperiods initiate and sustain inflorescence development by keeping gibberellin levels low.
#Photoperiod
Details: doi.org/10.1093/hr/u...
Larval melanin pigmentation #plasticity in response to #photoperiod differs between two populations of Hyles lineata that experience different climates. Does local temperature drives plasticity differences?
Britton & Davidowitz
doi.org/10.1093/jeb/...
Molecular Mechanisms of #Photoperiod Regulation of Bile Acid #Metabolism
Extended photoperiod dramatically increased the expression of critical hepatic bile acid metabolism genes (e.g., CYP7A1, CYP7B1, AQP9, ABCG5) and altered composition of cecal microbiota.
www.sciencedirect.com/science/arti...
#hormone #adaptation #migration #phenology #photoperiod #stableisotope @NordicOikos.bsky.social
Sketch map showing the identification of leaf onset date (indicated by A) and leaf offset date (indicated by B) based on the AGSI curve and an AGSI threshold (AGSIthr).
💡 An ‼️improved‼️ #GrowingSeasonIndex of #AlpineGrasslands on the #Qinghai–TibetanPlateau
Characteristics: including 1️⃣ #MaximumTemperature, 2️⃣ #Precipitation, 3️⃣ #Photoperiod
Function: predicting #FoliarPhenology
doi.org/10.1093/jpe/...
🚨New publication🚨
In a collaboration between #cibio-biopolis and #universitybergen we looked at the #sugarkelp #saccharinalatissima and the response to #temperature and #photoperiod
@catiamonteiro.bsky.social @coastalwarming.bsky.social
onlinelibrary.wiley.com/doi/10.1002/...
Fig. 1 from the article: Annual itinerary (life history stages) of migratory buntings along with changes in temperature and day length that they possibly experience during the year.
Fig. 6 from the article: Differences between spring and autumn migratory phenotypes. Schematic representation of differences in the fat accumulation, ‘Zugunruhe', adipose cell area, lipids in liver, hormones and metabolites in blood, and gene expressions in the hypothalamus and peripheral (muscle, liver and adipose tissues).
NEW PAPER: sytnhesizing decades of research on black- and redheaded buntings shows how these birds prepare for biannual migration through physiological, molecular and behavioural mechanisms.
➡️ vist.ly/3n35rd6
#ornithology #migration #photoperiod #metabolism #birds 🪶
New publication: What Does It Mean to Be(Come) Arctic? Functional and Genetic Traits of Arctic- and Temperate-Adapted Diatoms. #climatechange #photoperiod #polewardmigration #phytoplankton #rangeshift
doi.org/10.1111/gcb....
Fig. 5. RAPTOR1B functions upstream of GIGANTEA (GI) to contribute to CONSTANS (CO) stability at dusk and thus promote the floral transition in Arabidopsis. (F) Proposed model for the role of RAPTOR during floral transition in long days (LD). The length of the light period is primarily sensed in leaves by the combined action of light signaling (mediated by PHYA and CRYs) and the circadian clock (driving gene expression of effector proteins, such GI and FKF1). This accounts for protein accumulation of CONSTANS at dusk, which in turn, upregulates the florigen, FT. FT protein travels from the leaves into the shoot apex via the vasculature to induce the expression of floral integrator genes (such SOC1) and flower promoting genes (such SPL3/4/5). GI, similar to CO, accumulates over the day and is degraded at night. Independent, or together with FKF1 in response to blue light-mediated by CRYs, GI helps to stabilize CONSTANS at dusk in LD. RAPTOR, which is part of the TORC, contributes to CO stability at dusk by promoting GI levels posttranscriptionally. TORC is known to be activated by light and sugars, suggesting that RAPTOR conveys nutrient status, in this case carbon availability, to regulate GI accumulation and thus fine-tune flowering via the photoperiod pathway. Remarkably, TOR is essential for sugar-mediated regulation of the circadian period, while GI integrates signals from the circadian clock, thus strengthening the potential crosstalk between these proteins.
Great work by Urrea-Castellanos et al. (2025) on how RAPTOR1B, a subunit of #PlantTOR complex (TORC), post-transcriptionally regulates CONSTANS (CO), a component of the #photoperiod pathway to promote flowering, via #circadian clock-associated protein GIGANTEA (GI) 🌻.
🔗 www.pnas.org/doi/10.1073/...
#Autoflower vs. #Photoperiod #Cannabis 🌱💡
🔹 Autoflower – Flowers by age (2-4 weeks), fast & resilient, great for beginners. Lower yields but multiple harvests. 🌿⚡
🔹 Photoperiod – Needs light cycle changes (18/6 → 12/12). Higher yields, more control, but longer grow time. 🌞🌚
Cannabis leaves, with many flowering bud sites visible.
You go, girl.
#womenincannabis #MNgrown #photoperiod #WonderWoman
Two cannabis plants looking sad and bent over, held down by a black net.
Two cannabis plants growing and flourishing. Can barely see the net anymore, covered with green leaves.
What a difference 2 weeks make!
Potted up and preparing for flower for these two generation 2 clones taken from my first Wonder Woman grow.
#cannabisgrower #MNgrown #photoperiod
Day 16 - in 1 gallon pots
Glimpse at the roots
Day 18 - In 3 Gallon Pots
Transplant day! #cannabis #weed #marijuana #homegrow #photoperiod #sativa #plants #cannasky #weedsky #rosettastone #brothergrimmseeds
