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  • Open Access


    Comparative and Phylogenetic Analysis of the Complete Chloroplast Genomes of 19 Species in Rosaceae Family

    Riwa Mahai1, Rongpeng Liu1, Xiaolang Du1, Zejing Mu1, Xiaoyun Wang1,*, Jun Yuan2,*

    Phyton-International Journal of Experimental Botany, Vol.93, No.6, pp. 1203-1219, 2024, DOI:10.32604/phyton.2024.051559

    Abstract Rosaceae represents a vast and complex group of species, with its classification being intricate and contentious. The taxonomic placement of many species within this family has been a subject of ongoing debate. The study utilized the Illumina platform to sequence 19 plant species from 10 genera in the Rosaceae. The cp genomes, varying in size from 153,366 to 159,895 bp, followed the typical quadripartite organization consisting of a large single-copy (LSC) region (84,545 to 87,883 bp), a small single-copy (SSC) region (18,174 to 19,259 bp), and a pair of inverted repeat (IR) regions (25,310 to… More >

  • Open Access


    Structural characterization of four Rhododendron spp. chloroplast genomes and comparative analyses with other azaleas


    BIOCELL, Vol.47, No.3, pp. 657-668, 2023, DOI:10.32604/biocell.2023.026781

    Abstract Azalea is a general designation of Rhododendron in the Ericaceae family. Rhododendron not only has high ornamental value but also has application value in ecological protection, medicine, and scientific research. In this study, we used Illumina and PacBio sequencing to assemble and annotate the entire chloroplast genomes (cp genomes) of four Rhododendron species. The chloroplast genomes of R. concinnum, R. henanense subsp. lingbaoense, R. micranthum, and R. simsii were assembled into 207,236, 208,015, 207,233, and 206,912 bp, respectively. All chloroplast genomes contain eight rRNA genes, with either 88 or 89 protein-coding genes. The four cp genomes were compared and analyzed by More >

  • Open Access


    Comparative Analysis of the Complete Chloroplast Genome Sequences of Four Origin Plants of Lonicerae Flos (Lonicera; Caprifoliaceae)

    Sisi Liu1, Lisi Zhou2, Jiaoli Huang1, Huijie Zeng1, Zhongquan Qiao1, Yongxin Li1,*, Gang Zhang3,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.7, pp. 1503-1516, 2022, DOI:10.32604/phyton.2022.020390

    Abstract Lonicerae Flos (LF) derived from the dried flower buds or opening flowers of four Lonicera plants (Lonicera macranthoides, L. hypoglauca, L. confusa, and L. fulvotnetosa), is a popular traditional Chinese medicine. Because the four origin plants are very similar in morphology, it is difficult to control the quality of LF in actual production. Over the past decade, many reports have pointed out the differences among them, including the botanical characteristics and active ingredients. However, there is still a lack of rapid methods that can be applied to the identification of the four origins. In this study, comparative analysis of the… More >

  • Open Access


    Role of Reactive Oxygen Species in the Initiation of Plant Retrograde Signaling

    Eduardo-Antonio Trillo-Hernández1, Arturo Duarte Sierra2, Martín Ernesto Tiznado-Hernández1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.5, pp. 905-913, 2022, DOI:10.32604/phyton.2022.018118


    The interaction between the nucleus and the different organelles is important in the physiology of the plant. Reactive oxygen species (ROS) are a by-product of the oxidation of organic molecules to obtain energy by the need to carry out the electron transfer between the different enzymatic complexes. However, they also have a role in the generation of what is known as retrograde signaling. This signal comes from the different organelles in which the oxidation of molecules or the electron transference is taking place such as mitochondria and chloroplasts. Furthermore, ROS can also induce the release

    More >

  • Open Access


    The chloroplast genome comparative characteristic of artificial breeding tree, a case about Broussonetia kazinoki × Broussonetia papyrifera


    BIOCELL, Vol.46, No.3, pp. 803-819, 2022, DOI:10.32604/biocell.2022.016984

    Abstract Broussonetia kazinoki × Broussonetia papyrifera (ZJGS) is a hybrid species in Moraceae family, which has a very complicated hybrid origin. The excellent characteristics of fast growth, strong soil and water conservation ability, high leaf protein content and stem fiber content in ZJGS make it both ecological benefits in the mining area and economically valuable. This study aims to further understand ZJGS and other Moraceae taxa through the ZJGS chloroplast (cp) genome structure and the comparison with 12 closely related Moraceae species. Among the 13 Moraceae species, the cp genome length of seven Broussonetia species (ranges from 160,239 bp More >

  • Open Access


    Comparative Analyses and Phylogenetic Relationships between Cryptomeria fortunei and Related Species Based on Complete Chloroplast Genomes

    Yingting Zhang1,2,3, Junjie Yang1,2,3, Zhenhao Guo1,2,3, Jiaxing Mo1,2,3, Jiebing Cui1,2,3, Hailiang Hu1,2,3, Jin Xu1,2,3,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.4, pp. 957-986, 2020, DOI:10.32604/phyton.2020.011211

    Abstract Cryptomeria fortunei (Chinese cedar) is a highly adaptable woody species and one of the main forest plantation trees in subtropical high-altitude areas in China. However, there are few studies on its chloroplast (cp) genome. In this study, the complete cp genome of C. fortunei was sequenced and evaluated via comparative analyses with those of related species (formerly the Taxodiaceae) in Cupressaceae. The C. fortunei cp genome was 131,580 bp in length, and the GC content of the whole genome was 35.38%. It lost one relevant large inverted repeat and contained 114 unique genes, including 82 protein-coding genes, 28… More >

  • Open Access


    UVI_02019870, a Puptive Effector from Ustilaginoidea virens, Interacts with a Chloroplastic-Like Protein OsCPL1

    Shuai Li, Jianming Zhou, Shibo Xiang, Songhong Wei*

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 681-690, 2020, DOI:10.32604/phyton.2020.010671

    Abstract Ustilaginoidea virens, which causes rice false smut (RFS), is one of the most detrimental rice fungal diseases and poses a severe threat to rice production and quality. Effectors in U. virens often act as a group of essential virulence factors that play crucial roles in the interaction between host and the pathogen. Thus, the functions of individual effectors in U. virens need to be further explored. Here, we found a small secreted hypersensitive response-inducing protein UVI_02019870 was highly conserved in fungi. Furthermore, we performed Y2H and BiFC assay to demonstrated UVI_02019870 interacted with OsCPL1, which was predicted as More >

  • Open Access


    The Chloroplast Genome of Cerasus Campanulata Diverges from Other Prunoideae Genomes

    Yuhao Weng1, Liming Zhu2, Yan Ma3, Hao Su1, Lu Lu1, Pengkai Wang1, Jinhui Chen1, Asif Ali1, Renhua Zheng4,*, Jisen Shi1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 375-384, 2020, DOI:10.32604/phyton.2020.08831

    Abstract Cerasus Campanulata is one of several species belonging to the Prunoideae focke, a subfamily of the flowering plant Rosaceae. We investigated the details of its chloroplast genome which may reveal its genus independent of morphological determination. Here, we determined the complete chloroplast (cp) genome sequence of C. campanulata and performed sequence analysis to reveal the presence of 18 forward repeats, 20 palindrome repeats, 2 complement repeats, 4 reverse repeats and 93 simple sequence repeats (SSRs). We additionally performed a comparative study of C. campanulata and seven other Prunoideae focke species. Then, maximum parsimony (MP) and maximum likelihood (ML) More >

  • Open Access


    A study of chlorophyll-like and phycobilin pigments in the C endosymbiont of the apple- snail Pomacea canaliculata


    BIOCELL, Vol.36, No.2, pp. 47-55, 2012, DOI:10.32604/biocell.2012.36.047

    Abstract Pigments present in the brown-greenish C morph of an intracellular endosymbiont of Pomacea canaliculata were investigated. Acetone extracts of the endosymbiotic corpuscles showed an absorption spectrum similar to that of chlorophylls. Three fractions obtained from silica gel column chromatography of the acetone extracts (CI , CII and CIII ), were studied by positive ion fast atom bombardment-mass spectrometry (FAB–MS) and hydrogen-nuclear magnetic resonance (H-NMR). Results indicated the presence of (1) a sterol in the yellow colored CI fraction; (2) a mixture of pheophorbides a and b in the major green fraction, CII; and (3) a modified pheophorbide a in the More >

  • Open Access


    Effects of plow pan on SPAD value and chloroplast ultrastructure in leaves of spring maize

    Li G, FT Yang, XL Jiang, FX Chen, TH Cao, LC Wang

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 243-247, 2013, DOI:10.32604/phyton.2013.82.243

    Abstract The aim of this study was to evaluate the impact of the plow pan on the production of spring corn. We evaluated SPAD values and chloroplast ultrastructure in premature ear leaves of spring maize at the grain-filling stage. The maize plants were grown in simulated plow pan or simulated subsoiling treatments. Plants in the simulated plow pan treatment showed irreversible damage to chloroplasts, including changes in chloroplast shape, disintegration and rupture of chloroplast membranes, and blurriness and cloudiness of grana lamellae. The chlorophyll content decreased, which is a typical characteristic of senescence. Subsoiling cultivation practices More >

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