NEW PHYTOLOGIST新植物学家
NEW PHYTOLOGIST(英文缩写 NEW PHYTOL),ISSN 0028-646X,eISSN 1469-8137,中文译名:新植物学家 是一本学术期刊。本页汇总该期刊的最新影响因子、分区信息以及最新收录于 PubMed 的文献,帮助您快速了解期刊全貌。
发文量统计区间：2025-09-27 至 2026-09-27，按本站收录文献的发表日期统计。
期刊介绍
历年影响因子趋势
| JCR 数据年份 | 影响因子 | JCR 分区 |
|---|---|---|
| 2021 | 10.323 | Q1 |
| 2022 | 9.400 | Q1 |
| 2023 | 8.300 | Q1 |
| 2024 | 8.100 | Q1 |
| 2025 | 8.700 | Q1 |
NEW PHYTOLOGIST 最新收录文献
-
1. The CmABI5-CmKN1 module regulates seasonal growth and flowering in response to chilling in chrysanthemum.
PMID:日期:2026-10-01Perennial plants have evolved complex regulatory networks that allow them to perceive environmental changes and trigger adaptive growth responses. Many perennial herbs exhibit a rosette growth habit during winter, and then undergo extension growth/stem elongation growth and flowering in the following spring. However, the mechanisms underlying this seasonal transition are still not well understood. Here, using the perennial herb chrysanthemum (Chrysanthemum morifolium), we identified CmKN1, a class I KNOTTED (KN1)-like homeobox transcription factor, that mediates extension growth and flowering competence in response to prolonged chilling exposure. The rosette growth of chrysanthemum rhizomes in late autumn coincides with downregulation of CmKN1 expression. Overexpression of CmKN1 promotes premature rhizome extension growth and flowering, whereas the kn1 heterozygous mutant shows suppression of these processes. Furthermore, seasonal growth regulation involves the abscisic acid (ABA) signaling pathway. Shoot apices in the rosette state accumulate higher levels of ABA than those in the extension growth state. Notably, in response to ABA, CmKN1 expression is downregulated by CmABI5. Our results demonstrated that the CmABI5-CmKN1 module mediates extension growth and flowering competence in response to chilling, thereby facilitating the perennial growth habit of chrysanthemum.
-
2. Selection shapes the evolution of genome size in a globally invasive plant.
PMID:日期:2026-10-01Biological invasions provide powerful natural experiments for understanding how genome architecture responds to novel climatic environments. Transposable elements (TEs) can rapidly restructure genomes, yet their role in adaptive genome size evolution during invasion remains poorly understood. Here, we examined genome size and TE abundance in 439 individuals of globally invasive common ragweed (Ambrosia artemisiifolia L.) across native (North American) and invasive (European, Australian) ranges. By integrating whole-genome resequencing, flow cytometry and trait vs genetic differentiation comparison (Q-F), we tested whether genome size evolution is shaped by selection, climate and life-history traits. Genome size was significantly larger in Australian genotypes, driven by increased TE and rRNA (ribosomal RNA) abundance. Crucially, trait vs genetic differentiation comparison provided evidence of divergent selection on genome size in North American and European populations, but not in Australia. Genome size was correlated with mean annual temperature (MAT) across all ranges, linking genomic traits to environmental variables. Genome size evolution during invasion can be rapid, adaptive and range-specific, with TE-driven genome expansion emerging as a potential genomic response to the demographic and environmental pressures accompanying colonisation of novel environments.
-
3. Phosphorylation of the transcription factor TgWRKY47 by TgSnRK1 modulates cone enlargement in the gymnosperm Torreya grandis.
PMID:日期:2026-10-01Reproduction is essential for seed plant survival, and in gymnosperms, cone enlargement plays a pivotal role in seed production and reproduction. However, the molecular mechanisms regulating cone enlargement after fertilization remain poorly understood. Here, using Torreya grandis, a representative gymnosperm species with persistently low cone enlargement efficiency, we elucidated the molecular regulation of cone enlargement and identified sucrose non-fermenting 1-related protein kinase 1 (TgSnRK1) as a novel negative regulator of this process. TgSnRK1 physically interacted with the WRKY transcription factor TgWRKY47 both in vitro and in vivo. Functional analyses revealed that TgSnRK1 acted upstream of TgWRKY47 and suppressed cone enlargement in T. grandis. Phosphorylation assays revealed that TgSnRK1 directly phosphorylated TgWRKY47 at Thr-75. This phosphorylation event markedly reduced the transactivation activity of TgWRKY47, thereby attenuating its activation of the cell wall-remodeling gene TgEXPA2, a key regulator of cell expansion during cone enlargement. Together, these findings establish a phosphorylation-dependent TgSnRK1-TgWRKY47-TgEXPA2 regulatory pathway in which developmental attenuation of TgSnRK1-mediated phosphorylation of TgWRKY47 at Thr-75 enhances TgWRKY47 transactivation activity, thereby promoting TgEXPA2-dependent cone enlargement. This study advances our understanding of reproductive development in gymnosperms and identifies potential molecular targets for improving reproductive efficiency and seed yield.
-
4. Transcription factor MdLBD41 negatively regulates resistance to Glomerella leaf spot in apple by suppressing ROS production.
PMID:日期:2026-10-01Glomerella leaf spot (GLS) is a devastating disease of apple. The defense mechanisms of apple plants against GLS remain incompletely understood. In the present study, we report a GLS resistance regulatory module in apple involving MdLBD41, MdbHLH144, MdTPL1, and the target genes MdRBOHD1/2, which are responsible for reactive oxygen species (ROS) generation during infection by Colletotrichum fructicola, a causal agent of GLS. Compared with the resistant cultivar, the susceptible cultivar exhibited a higher expression level of MdLBD41 in response to C. fructicola infection, suggesting the involvement of MdLBD41 in the defense responses of apple plants against GLS. This differential expression of MdLBD41 was associated with distinct levels of histone acetylation in the MdLBD41 promoter region between susceptible and resistant cultivars. Functioning as a transcriptional repressor, MdLBD41 suppressed MdRBOHD1/2 expression and reduced ROS generation by recruiting the TOPLESS corepressor MdTPL1. This repression could be relieved by MdbHLH144, which interacted with MdLBD41 and inhibited its binding to the MdRBOHD1/2 promoters. Thus, we identified a previously uncharacterized regulatory mechanism governing MdRBOHD1/2 expression and ROS generation during C. fructicola infection. This mechanism represents a finely tuned regulatory strategy that balances effective disease resistance with protection against cellular damage in apple plants.
-
5. Dual localization of PDI5 couples endoplasmic reticulum proteostasis to meristem organization and meiotic fidelity in Arabidopsis.
PMID:日期:2026-10-01Plant growth and reproduction require coordinated control of hormone-dependent tissue patterning and faithful meiotic chromosome segregation, yet whether upstream proteostasis contributes to both processes remains unclear. Here, we show that Arabidopsis PROTEIN DISULFIDE ISOMERASE 5 (PDI5) contributes to auxin-associated developmental patterning and meiotic fidelity. Native-promoter reporter constructs corresponding to two annotated PDI5 transcript isoforms show distinct subcellular enrichment, with one displaying an endoplasmic reticulum (ER)-associated distribution and the other showing nuclear enrichment. Disruption of PDI5 alters bulk glycoprotein staining and glycoside and trafficking-associated transcriptional programs, reduces the abundance of PIN-FORMED 2-green fluorescent protein (PIN2-GFP), alters its brefeldin A-sensitive intracellular accumulation, and is associated with perturbed auxin-response patterning and disorganized root meristems. In reproductive tissues, the pdi5 mutant shows abnormal germline-associated cell-fate restriction, impaired meiotic chromosome behavior, reduced chiasma formation and decreased fertility. Proteomic and interaction analyses identify the cohesin subunit SISTER-CHROMATID COHESION PROTEIN 3 (SCC3) as a PDI5-associated protein, and disruption of a conserved SCC3 N809-centered motif reduces its detectable association with PDI5. In a PDI5 promoter-driven conditional complementation assay, SCC3^N809E fails to support fertility rescue. These findings support a model in which PDI5-dependent proteostasis contributes to auxin-associated developmental patterning and meiotic chromosome fidelity, potentially through compartmentally distributed PDI5 functions.
-
6. The PtoERF1-PtomiR393a-PtoFBL4 module confers drought tolerance via ABA-auxin crosstalk in Populus.
PMID:日期:2026-10-01Drought stress limits forest tree growth and adaptation, with xylem vessels critical for hydraulic transport and structural integrity. However, the molecular mechanisms of abscisic acid (ABA)-auxin interaction in regulating vessel morphogenesis under water-deficit conditions remain unclear. Here, we identified PtomiR393a, a drought-responsive microRNA in Populus tomentosa that mediates crosstalk between ABA and auxin signaling pathways under drought stress. Suppressing PtomiR393 enhanced drought tolerance and growth, whereas its overexpression had the opposite effect. Under drought conditions, suppression of PtomiR393 resulted in reduced vessel size (12.18-13.57%) and increased vessel density (27.22-30.14%), while its overexpression exhibited increased vessel size (15.42-16.01%) and reduced vessel density (19.80-20.62%). Functional assays showed that PtomiR393 specifically targets PtoFBL4, an F-box auxin receptor, modulating auxin signaling in response to drought stress. Expression analyses further revealed that PtomiR393 downregulates genes involved in vessel and fiber formation and secondary cell wall biosynthesis by repressing PtoFBL4-mediated auxin signaling. Furthermore, drought-induced ABA signaling activated PtoERF1 expression via PtoAREB13, thereby inhibiting PtomiR393a expression. The study revealed a PtoERF1-PtomiR393a-PtoFBL4 cascade that links ABA-auxin crosstalk and regulates vessel development under drought stress. These findings offer new insights into drought tolerance mechanisms in trees and suggest potential strategies to enhance forest tree resilience to water-deficit conditions.
-
7. Reproductive thermotolerance: from flower development to seed initiation.
PMID:日期:2026-10-01Global warming has increased the frequency and intensity of extreme heat events, threatening crop productivity and food security. Plant reproductive development is particularly vulnerable to high temperature, and even brief heat episodes can markedly reduce seed set. Heat stress disrupts multiple reproductive stages, including flowering, male and female gametophyte development, pollination, fertilization, and early seed development. Thus, reproductive thermotolerance requires coordinated regulation across developmental stages and tissue systems. In this review, we synthesize current knowledge of how high temperature affects plant reproduction from floral initiation to seed formation and summarize the underlying molecular mechanisms, including heat sensing, proteostasis, redox regulation, metabolism, and hormonal control. We further discuss strategies for improving reproductive heat resilience through breeding, biotechnology, and crop management. By framing reproductive thermotolerance as an integrated property of cellular and tissue homeostasis, this review provides a conceptual foundation for future mechanistic studies and for developing crops better adapted to a warming climate.
-
8. Temporal decoupling between photosynthetic carbon assimilation and wood formation in a temperate forest: implications for source-sink dynamics.
PMID:日期:2026-10-01Quantifying temporal lags between photosynthesis and wood formation is essential for predicting forest carbon allocation under climate change, yet their magnitude and drivers remain poorly resolved across coexisting species. Here, we combined 4 yr of weekly microcore observations of wood formation with modeled daily photosynthetic production for 12 dominant tree species in a mixed broadleaf-Korean pine forest in Northeast China. Cross-correlation analysis was used to quantify the temporal lags between wood formation and photosynthesis at both species and stand levels. Wood formation lagged behind photosynthetic production by 6-30 d across species, with a stand-level average lag of 23 d. Linear mixed-effects models identified temperature, light, and water availability as the main environmental drivers of lag duration, with water-related conditions playing a particularly prominent role. Functional-trait analysis further showed that phenological sequence (growth-first vs leaf-first) significantly explained species-stand lag divergence, whereas specific leaf area, wood density, and leaf C : N, representing carbon acquisition, xylem construction cost, and photosynthetic nutrient investment, were not significant predictors. These findings indicate that temporal decoupling between photosynthetic production and wood formation is regulated by environmental conditions and species-specific phenological strategies. Incorporating time lags and functional diversity into ecosystem models may improve projections of forest carbon allocation under future climate scenarios.
-
9. FaNAC29: a novel gene positively regulating strawberry powdery mildew resistance.
PMID:日期:2026-10-01Powdery mildew (PM) of strawberry (Fragaria × ananassa) is a prevalent fungal disease affecting all aboveground tissues, especially leaves. Currently, there are few germplasm resources of strawberry resistant to PM, and the resistance mechanism remains unclear. This study constructed a BCF segregating population by crossing the highly resistant 'Parajatan' with the susceptible 'Benihoppe'. Using multi-omics approaches, including RNA-seq, QTL-seq, and metabolomics analysis, a key gene FaNAC29 was identified. Subcellular localization revealed FaNAC29 nuclear expression, and transcriptional activation assays confirmed its activation activity. Notably, functional assays revealed that FaNAC29 confers enhanced PM resistance in strawberry seedlings. We further identified the downstream target gene FaPR4 and the interacting protein FaZHD11, using DAP-seq and Y2H assays, respectively. We characterized FaPR4 as a direct downstream target of FaNAC29, which enhances strawberry PM resistance via the modulation of chitinase activity. These findings provide a theoretical basis for breeding strawberry varieties with both excellent commercial traits and PM resistance.
-
10. Are novel and co-xenic associations common in alien fungal and fungus-like plant pathogens?
PMID:日期:2026-10-01Impacts of alien fungal and fungus-like plant pathogens depend on host interactions, including novel associations with native plants and co-xenic associations with alien plants that do not share the same area of origin, both largely unquantified globally. Combining global distribution and association data, we characterised associations across pathogens' introduced regions, calculated host species richness (SR) and phylogenetic divergence, and examined predictors of novel/co-xenic associations. Novel/co-xenic alien pathogen-plant association records were common (53%) and dominated by widespread generalists. They were found in about one-third of alien pathogens examined, mostly within their known phylogenetic host range. However, 46% of associations remained unclassified due to limited knowledge of pathogen biogeography. Novel/co-xenic associations were more likely for pathogens with larger introduced ranges, wider phylogenetic host range, economically used hosts co-occurring in the region, and host communities phylogenetically similar to the recipient regions' plant community. They were also more likely for host plants with no economic use and restricted native ranges, and in regions with higher plant SR. Novel/co-xenic associations are common and shaped by contact opportunity, phylogenetic host range, and regional community composition. Unravelling fungal and fungus-like pathogen biogeography is key to assessing their full magnitude.