ArticlePlant-environment interactions (Hoboken, N.J.)2026
Investigating Thermotolerance of Thylakoid Processes in Two Cotton Species using Rapid Induction Fluorescence.
Article in Plant-environment interactions (Hoboken, N.J.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
High temperatures can hinder stand establishment, seedling growth, and photosynthetic processes in cotton. Yet, interpretations of thermotolerance in thylakoid processes often depend on whether measurements follow chronic or acute heat exposure, and species-level differences in these responses remain poorly characterized. This study evaluated the effects of chronic high temperatures (40°C/30°C) on key thylakoid processes in four-week-old Upland and Pima cotton seedlings and assessed their acclimation potential using rapid induction chlorophyll fluorescence across a range of incubation temperatures. As these processes were inferred from OJIP parameters rather than direct measurements of photosystem activity, they are interpreted as fluorescence-based indicators of thylakoid function. Chronic heat enhanced photosystem I (PSI)-related parameters in both species, with Upland exhibiting larger increases (44%-46%) compared to Pima (39%-40%), whereas photosystem II (PSII) photochemistry remained largely stable under chronic heat, declining by less than 2% at 40°C and by 6%-8% at 45°C under acute exposure. Acute temperature responses closely mirrored chronic patterns, and Upland showed higher thermal optima for PSI quantum yield and overall performance (40°C) than Pima (35°C), suggesting greater PSI electron-sink capacity. Collectively, these fluorescence-derived results suggest that PSI-related processes distinguish species-level thermotolerance in cotton. Upland's stronger enhancement of PSI acceptor-side capacity under both sustained and transient heat exposure points to a more robust acclimation strategy, whereas Pima shows limited PSI adjustment despite maintaining PSII efficiency. These findings clarify how thylakoid processes respond to heat across timescales and may help guide the development of heat-resilient cotton as growing-season temperatures rise.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.