ArticleBMC plant biology2026
Comparative physiological and transcriptomic analysis of rapid post-midday photosynthetic recovery in Saccharum spontaneum reveals candidate pathways for sugarcane improvement.
Article in BMC plant biology, 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
15 authors.
Funding
Abstract
backgroundGlobal climate warming has increasingly exacerbated the adverse effects of high temperature on crop yield and quality. Saccharum spontaneum, a wild resource that serves as a crucial genetic reservoir for sugarcane, represents a valuable genetic asset for improving heat tolerance in sugarcane breeding. Recent studies have shown that S. spontaneum contributes to modern sugarcane breeding not only as a source of resistance genes but also to sugar accumulation in contemporary cultivars. However, the molecular basis underlying its photosynthetic recovery following combined heat and high light stress remains unclear. MATERIALS AND
methodsIn this study, 20 S. spontaneum accessions were evaluated under natural high-temperature and high-light conditions by measuring photosynthetic parameters at 09:00, 14:00, and 17:00. Two accessions showing contrasting post-noon recovery of net photosynthetic rate were identified: the fast-recovering line 82-114 (L114) and the slow-recovering line 2021-17 (L17).
resultsTranscriptome sequencing and differential expression analyses revealed that the differentially expressed genes (DEGs) were predominantly enriched in pathways related to plant hormone signal transduction, antioxidant enzyme systems, photosynthesis, and carbon metabolism. Further weighted gene co-expression network analysis (WGCNA) identified co-expression modules highly associated with the afternoon samples of L114, along with key regulatory factors including WRKY, NF-YC, CAMTA, C2H2, and RLK family members. Physiological and molecular data together indicate that L114 orchestrates a dynamic response under heat and high light stress by remodeling ethylene, jasmonic acid, and auxin signaling networks; coordinately enhancing peroxisome-associated antioxidant systems; transiently downregulating and subsequently restoring the expression of light-harvesting and electron transport genes in the photosystems; and finely tuning glycolysis, the tricarboxylic acid (TCA) cycle, and the pentose phosphate pathway to achieve a temporal response characterized by "damage suppression-rapid repair-recovery of high photosynthesis." This study is the first to investigate candidate pathways underlying the rapid recovery of photosynthesis following midday depression in S. spontaneum, and to identify germplasm with high photosynthetic capacity and rapid post-midday recovery. These mechanistic insights provide novel candidate targets for functional validation and genetic improvement in sugarcane breeding.
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.