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Transcriptome and physiology analysis reveal key players of the shade-tolerant species Panax notoginseng in photosynthetic performance under both high and low light regimes

التفاصيل البيبلوغرافية
العنوان: Transcriptome and physiology analysis reveal key players of the shade-tolerant species Panax notoginseng in photosynthetic performance under both high and low light regimes
المؤلفون: Jin-Yan Zhang, Shuang-Bian Kuang, Zhu Cun, Sheng-Pu Shuang, Zhen-Gui Meng, Long-Gen Li, Jun-Wen Chen
المصدر: Journal of Plant Interactions, Vol 17, Iss 1, Pp 371-389 (2022)
بيانات النشر: Taylor & Francis Group, 2022.
سنة النشر: 2022
المجموعة: LCC:Plant culture
LCC:Plant ecology
مصطلحات موضوعية: Photosynthetic performance, anatomic structure, transcriptome, photoprotection, Panax notoginseng, Plant culture, SB1-1110, Plant ecology, QK900-989
الوصف: The present study aimed to understand the molecular mechanism underlying the light-induced depression of photosynthetic capacity in a typically shade-tolerant species Panax notoginseng grown under different light intensities. Photosynthetic performance was declined in the low-light- and high-light-grown plants. The physiological plasticity was low, while the plasticity of morpho-anatomy traits, biomass allocation and biochemical traits was great in response to the light environment. High light enhanced the expression of genes related to reactive oxygen scavenging, pentose phosphate pathway and glycolysis. The expression of genes involved in the light reaction was suppressed in low light, along with a reduction in Rubisco activity. The expression of genes encoding Rubisco was repressed in high light. Photosynthetic capacity in low light might be inhibited by the deceleration on light reaction and by the increase of inactivated Rubisco, high-light-induced decrease of photosynthetic performance might result from the deceleration on Calvin cycle.Abbreviations: Anet, net assimilation rate; LCP, light compensation point; PQ, plastoquinone pool; LSP, light saturation point; PPFD, photosynthetic photon flux density; Ci, internal leaf CO2 concentration; Amax, maximum net photosynthesis rate; CE, carboxylation efficiency; Jmax, maximum electron transfer rate; Vcmax, maximum carboxylation efficiency; Rd, dark respiration rate; Fv/Fm, maximum quantum yield of photosystem II; ΦPSII, PSII photochemical quantum yield; qP, photochemical quenching; Fv′/Fm′, photochemical efficiency of PSII in the light; NPQ, non-photochemical quenching; Φf.d, fluorescence quenching dissipation; ΦNPQ, non-photochemical quenching dissipation; (V + A+Z), the xanthophyll cycle pigment pool; L, lutein; N, neoxanthin; β-Car, β-Carotene; SOD, superoxide dismutase; CAT, catalase; POD, peroxidase; APX, ascorbate peroxidase; MDHAR, monodehydroascorbate reductase; DHAR, dehydroascorbate reductase
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 17429145
1742-9153
1742-9145
Relation: https://doaj.org/toc/1742-9145; https://doaj.org/toc/1742-9153
DOI: 10.1080/17429145.2022.2041118
URL الوصول: https://doaj.org/article/3c553dddcc894dc3b4aa42a28fa0cffe
رقم الأكسشن: edsdoj.3c553dddcc894dc3b4aa42a28fa0cffe
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:17429145
17429153
DOI:10.1080/17429145.2022.2041118