Physiological and transcriptome analyses of photosynthesis and chlorophyll metabolism in variegated Citrus (Shiranuhi and Huangguogan) seedlings

Xiong, Bo; Qiu, Xia; Huang, Shengjia; Wang, Xiaojia; Zhang, Xu; Dong, Tiantian; Wang, Tie; Li, Sichen; Sun, Guochao; Zhu, Jianzhong; Wang, Zhihui

doi:10.1038/s41598-019-52276-5

Cited by 16 publications

(12 citation statements)

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“…Measurements were taken between 09:00 and 11:00 h on fully expanded sunlit leaves from the top third of the plant (Hippler et al 2018). The photosynthetically active radiation and CO 2 concentrations were set at 1200 and 400 μmol m −2 s −1 , respectively (Xiong et al 2019). The measurement parameters mainly included net photosynthetic rate (Pn), transpiration rate (Tr), intercellular CO 2 concentration (Ci) and stomatal conductance (Gs).…”

Section: Methodsmentioning

confidence: 99%

“…Photosynthesis is the foundation of quality formation and production accumulation (Zhu et al 2020). Numerous studies have been targeted toward improving citrus photosynthesis, specifically by focusing on rootstocks (Forner‐Giner et al 2010), mineral nutrition (Ye et al 2019), chlorophyll metabolism (Xiong et al 2019) and biotic stress (Chin et al 2020). Presently, there is limited research on the effects of JAs on fruits, especially with regard to photosynthesis.…”

Section: Introductionmentioning

confidence: 99%

“…The mechanism that underpins how JAs regulate citrus photosynthesis is still unclear. Therefore, experiments were carried out with two citrus cultivars, Huangguogan (C. reticulata × C. sinensis ) and Shiranuhi [ C. reticulata × (C. reticulata × C. sinensis )], which are widely cultivated in China (Xiong et al 2019). In this study, we investigated the effects of exogenous MeJA on the endogenous JAs synthesis pathway in citrus plants.…”

Section: Introductionmentioning

confidence: 99%

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Effects of exogenous methyl jasmonate on the synthesis of endogenous jasmonates and the regulation of photosynthesis in citrus

Qiu

Xiong

et al. 2020

Physiologia Plantarum

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Methyl jasmonate (MeJA) is an airborne signaling phytohormone that can induce changes in endogenous jasmonates (JAs) and cause photosynthetic responses. However, the response of these two aspects of citrus plants at different MeJA concentrations is still unclear. Four MeJA concentrations were used in two citrus varieties, Huangguogan (C. reticulata × C. sinensis) and Shiranuhi [C. reticulata × (C. reticulata × C. sinensis)], to investigate the effects of MeJA dose on the endogenous JAs pathway and photosynthetic capacity. We observed that MeJA acted in a dosedependent manner, and its stimulation in citrus leaves showed a bidirectional character at different concentrations. This work demonstrates that MeJA at only a concentration of 2.2 mM or less contributed to the activation of magnesium protoporphyrin IX methyltransferase (ChlM, EC 2.1.1.11) and protochlorophyllide oxidoreductase (POR, EC 1.3.1.11) and the simultaneous accumulation of Chl a and Chl b, which in turn contributed to an improved photosynthetic capacity and PSII photochemistry efficiency of citrus. Meanwhile, the inhibition of endogenous JAs synthesis by exogenous MeJA was observed. This was achieved by reducing the ratio of monogalactosyl diacylglycerol (MGDG) to diagalactosyl diacylglycerol (DGDG) and inhibiting the activities of key enzymes in JAs synthesis, especially 12-oxo-phytodienoic acid reductase (OPR, EC 1.3.1.42). Another noteworthy finding is that there may exist a JA-independent pathway that could regulate 12-oxo-phytodienoic acid (OPDA) synthesis. This study jointly analyzed the internal hormone regulation mechanism and the external physiological response, as well as revealed the effects of exogenous MeJA on promoting the photosynthesis and inhibiting the endogenous JAs synthesis.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of exogenous methyl jasmonate on the synthesis of endogenous jasmonates and the regulation of photosynthesis in citrus

Qiu

Xiong

et al. 2020

Physiologia Plantarum

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“…NGS-based transcriptomics is widely implemented in various fields of plant sciences. It is used to study the processes of plant cell growth and specialization [ 105 , 106 , 107 , 108 ], to reveal the molecular events associated with the development of mutualistic interactions between a plant and its symbionts [ 109 ], and to study the regulation of photosynthesis [ 110 , 111 ] and the circadian control in plants [ 112 ], etc. NGS-based transcriptomics is often applied to plant pathology and stress studies.…”

Section: Transcriptomicsmentioning

confidence: 99%

OMICs, Epigenetics, and Genome Editing Techniques for Food and Nutritional Security

Gogolev

Ahmar

Akpınar³

et al. 2021

Plants

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The incredible success of crop breeding and agricultural innovation in the last century greatly contributed to the Green Revolution, which significantly increased yields and ensures food security, despite the population explosion. However, new challenges such as rapid climate change, deteriorating soil, and the accumulation of pollutants require much faster responses and more effective solutions that cannot be achieved through traditional breeding. Further prospects for increasing the efficiency of agriculture are undoubtedly associated with the inclusion in the breeding strategy of new knowledge obtained using high-throughput technologies and new tools in the future to ensure the design of new plant genomes and predict the desired phenotype. This article provides an overview of the current state of research in these areas, as well as the study of soil and plant microbiomes, and the prospective use of their potential in a new field of microbiome engineering. In terms of genomic and phenomic predictions, we also propose an integrated approach that combines high-density genotyping and high-throughput phenotyping techniques, which can improve the prediction accuracy of quantitative traits in crop species.

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“…Several internet advertisements indicate them as suitable plants for ornamentation in the interior of homes, where the availability of sunlight is sometimes compromised. However, as the multiplicities of colors of these plants occur as a function of the dynamic exposure to light radiation to which they are submitted in understory environments [5][6][7], each species reacts physiologically differently when placed in environments with different availability of light.…”

Section: Introductionmentioning

confidence: 99%

Vegetação inside: uma análise comparativa de pigmentos foliares e fluorescência da clorofila em plantas variegadas

Taques

Lima

2021

Sci. Plena

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Plantas características de ambientes de sub-bosque apresentam colorações variadas em suas folhas denominadas de variegações. Estas tendem a regular, por meio de suas concentrações de pigmentos foliares, seus processos fotossintéticos. O objetivo desta pesquisa foi comparar as concentrações de pigmentos foliares e de parâmetros da fluorescência da clorofila a em quatro espécies de plantas variegadas, Fittonia albivenis, Alternanthera ficoidea, Tradescantia spathacea e Hypoestes phyllostachya, bem como das espécies controles, Jasminum mesnyi e Tradescantia pallida, para determinar quais são mais propicias aos ambientes residenciais com altas e baixas intensidades luminosas. A análise dos pigmentos foliares foi realizada por espectrofotometria e a de emissão de fluorescência da clorofila a através do fluorômetro PAM-2500, cujos parâmetros foram calculados a partir do teste-JIP. Os teores de clorofila a variaram de 27,67 a 110,88 (μg mL-1 gMF-1), os de clorofila b variaram de 10,29 a 40,64 (μg mL-1 gMF-1). Os títulos de carotenoides variaram de 2,6275 a 26,1925 (μg mL-1 gMF-1) e os de antocianinas variaram de 0,00 a 2,26 (μg mL-1 gMF-1), sendo que os maiores títulos ocorreram na espécie controle J. mesnyi e na variegada F. albivenis. Os parâmetros da fluorescência diferiram estatisticamente entre as plantas variegadas em relação aos controles. Concluímos que a espécie T. spathacea apresenta melhor adaptação a ambientes com altos índices de radiação luminosa. Em ambientes com maior variação desta as espécies H. phyllostachya e A. ficoidea se desenvolverão melhor. Por fim, a espécie F. albivenis deve ser mantida em ambientes com baixos índices de radiação luminosa.

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Physiological and transcriptome analyses of photosynthesis and chlorophyll metabolism in variegated Citrus (Shiranuhi and Huangguogan) seedlings

Cited by 16 publications

References 54 publications

Effects of exogenous methyl jasmonate on the synthesis of endogenous jasmonates and the regulation of photosynthesis in citrus

Effects of exogenous methyl jasmonate on the synthesis of endogenous jasmonates and the regulation of photosynthesis in citrus

OMICs, Epigenetics, and Genome Editing Techniques for Food and Nutritional Security

Vegetação inside: uma análise comparativa de pigmentos foliares e fluorescência da clorofila em plantas variegadas

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