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  • Open Access

    ARTICLE

    Variation Characteristics of Root Traits of Different Alfalfa Cultivars under Saline-Alkaline Stress and their Relationship with Soil Environmental Factors

    Tian-Jiao Wei1, Guang Li1, Yan-Ru Cui1, Jiao Xie1, Xing-Ai Gao1, Xing Teng1, Xin-Ying Zhao1, Fa-Chun Guan1,*, Zheng-Wei Liang2,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.046078

    Abstract Soil salinization is the main factor that threatens the growth and development of plants and limits the increase of yield. It is of great significance to study the key soil environmental factors affecting plant root traits to reveal the adaptation strategies of plants to saline-alkaline-stressed soil environments. In this study, the root biomass, root morphological parameters and root mineral nutrient content of two alfalfa cultivars with different sensitivities to alkaline stress were analyzed with black soil as the control group and the mixed saline-alkaline soil with a ratio of 7:3 between black soil and saline-alkaline soil as the saline-alkaline treatment… More >

  • Open Access

    ARTICLE

    The Effect of Soil Enzymes and Polysaccharides Secreted by the Roots of Salvia miltiorrhiza Bunge under Drought, High Temperature, and Nitrogen and Phosphorus Deficits

    Yong Qin1,2, Xiaoyu Li1,2, Yanhong Wu1,2, Hai Wang3, Guiqi Han1,2,3, Zhuyun Yan1,2,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.046075

    Abstract Root exudates serve as crucial mediators for information exchange between plants and soil, and are an important evolutionary mechanism for plants’ adaptation to environmental changes. In this study, 15 different abiotic stress models were established using various stress factors, including drought (D), high temperature (T), nitrogen defi- ciency (N), phosphorus deficiency (P), and their combinations. We investigated their effects on the seedling growth of Salvia miltiorrhiza Bunge and the activities of Solid-Urease (S-UE), Solid-Nitrite Reductase (S-NiR), Solid-Nitrate Reductase (S-NR), Solid-Phosphotransferase (S-PT), and Solid-Catalase (S-CAT), as well as the contents of polysaccharides in the culture medium. The results showed that the… More >

  • Open Access

    ARTICLE

    Silicon Mitigates Aluminum Toxicity of Tartary Buckwheat by Regulating Antioxidant Systems

    Anyin Qi1,#, Xiaonan Yan1,#, Yuqing Liu1,#, Qingchen Zeng1, Hang Yuan1, Huange Huang1, Chenggang Liang2, Dabing Xiang1, Liang Zou1, Lianxin Peng1, Gang Zhao1, Jingwei Huang1,*, Yan Wan1,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.045802

    Abstract Aluminum (Al) toxicity is a considerable factor limiting crop yield and biomass in acidic soil. Tartary buckwheat growing in acidic soil may suffer from Al poisoning. Here, we investigated the influence of Al stress on the growth of tartary buckwheat seedling roots, and the alleviation of Al stress by silicon (Si), as has been demonstrated in many crops. Under Al stress, root growth (total root length, primary root length, root tips, root surface area, and root volume) was significantly inhibited, and Al and malondialdehyde (MDA) accumulated in the root tips. At the same time, catalase (CAT) and ascorbate peroxidase activities,… More >

  • Open Access

    ARTICLE

    Identification and Molecular Characterization of the Alkaloid Biosynthesis Gene Family in Dendrobium catenatum

    Liping Yang1,#, Xin Wan2,3,#, Runyang Zhou1, Yingdan Yuan1,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.045389

    Abstract As one of the main active components of Dendrobium catenatum, alkaloids have high medicinal value. The physicochemical properties, conserved domains and motifs, phylogenetic analysis, and cis-acting elements of the gene family members in the alkaloid biosynthesis pathway of D. catenatum were analyzed by bioinformatics, and the expression of the genes in different years and tissues was analyzed by qRT-PCR. There are 16 gene families, including 25 genes, in the D. catenatum alkaloid biosynthesis pathway. The analysis of conserved domains and motifs showed that the types, quantities, and orders of domains and motifs were similar among members of the same family,… More >

  • Open Access

    ARTICLE

    Protein Disulfide Isomerase and Its Potential Function on Endoplasmic Reticulum Quality Control in Diatom Phaeodactylum tricornutum

    Yanhuan Lin1,#, Hua Du2,#, Zhitao Ye2, Shuqi Wang2, Zhen Wang2, Xiaojuan Liu2,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.044996

    Abstract PDI is a molecular chaperone and plays an important role in Endoplasmic Reticulum quality control (ERQC). PDI participates in the refolding of the misfolded/unfolded proteins to maintain cellular homeostasis under different stresses. However, bioinformatic characteristics and potential functions of PDIs in diatom Phaeodactylum tricornutum (Pt) are still unknown so far. Hence, the genome-wide characteristics of PtPDI proteins in P. tricornutum were first studied via bioinformatic and transcriptomic methods. 42 PtPDI genes were identified from the genome of P. tricornutum. The motif, protein structure, classification, number of introns, phylogenetic relationship, and the expression level of 42 PtPDI genes under the tunicamycin… More >

  • Open Access

    ARTICLE

    Effects of Heterologously Overexpressing PIP5K-Family Genes in Arabidopsis on Inflorescence Development

    Mingda Yin1,#, Rui Luo1,#, Tana Liang1, Qi Wen1, Xiaotian Liang1, Yanpeng Wen1, Xuemei Hu1, Zhiyan Wang1, Chang Gao1, Wenjing Ren1, Fenglan Huang1,2,3,4,5,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.031228

    Abstract Castor is one of the top 10 oil crops in the world and has extremely valuable uses. Castor inflorescences directly affect yield, so the study of inflorescence development is very important in increasing castor yield. Our previous studies have shown that the PIP5K gene family (PIP5Ks) is associated with inflorescence development. In this study, to determine the function of each PIP5K gene in castor, a female Lm-type castor line, aLmAB2, was used to determine the relative expression levels of the PIP5Ks in castor inflorescences. Six PIP5K genes were heterologously overexpressed in Arabidopsis thaliana, the relative expression of each gene and… More >

  • Open Access

    ARTICLE

    Physiological Dynamics and Transcriptomic Analysis of Cut Roses ‘Carola’ Treated with KNO3

    Songmei Liu, Yuheng Wu, Hongmei Li, Dongli Cai, Huiling Liang, Changchun Ye, Shenggen He*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.045453

    Abstract The consumption of cut roses (Rosa hybrida) has always ranked first in the world. However, it is vulnerable to rapid petal and leaf wilting due to leaf stomatal water loss, which seriously affects its ornamental quality and economic value. Stomatal movement, a key in plant physiological processes, is influenced by potassium and nitrate. Advancing comprehension of its physiological and molecular mechanism holds promise for preserving the freshness of cut roses. This study observed the impacts of different concentrations of KNO3 vase treatments on stomatal opening and water loss in cut rose ‘Carola’ leaves, as well as their transcriptional responses to… More >

  • Open Access

    ARTICLE

    Evaluating the Effects of Aquaculture Wastewater Irrigation with Fertilizer Reduction on Greenhouse Tomato Production, Economic Benefits and Soil Nitrogen Characteristics

    Hang Guo1,2,3, Linxian Liao1,2,3, Zhenhao Zheng4, Junzeng Xu1,2,3,*, Qi Wei1,2,3, Peng Chen1,2,3, Kechun Wang1,2,3

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.044051

    Abstract The utilization of aquaculture wastewater as irrigation is an effective way to recycle and reuse water and nitrogen fertilizer resources because it contains numerous nutrients. However, it is still unclear that the pattern of substituting aquaculture wastewater irrigation for fertilizer supplementing is conducive to improving the soil nitrogen status, fruit yield and water-fertilizer use efficiency for tomato production. In this context, the experiment was intended to establish the appropriate irrigation regime of aquaculture wastewater in tomato production for freshwater replacement and fertilizer reduction to ensure good yields. Pot experiments were conducted with treatments as farmers accustomed to irrigation and fertilization… More >

  • Open Access

    ARTICLE

    Effect of Shoot Control on Flower Bud Differentiation, Flowering, and Fruit Setting in Zanthoxylum armatum DC.

    Xiandang Shen1,2,3, Runxi He2,3, Xin Li3, Zhuogong Shi2,3,*, Jinfang Meng2,3,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.042735

    Abstract In this study, newly sprouted shoots of Zanthoxylum armatum (Z. armatum), which were collected after the harvesting period, were used as the primary experimental specimens. A randomized block design and paraffin sectioning method were used to investigate the flower bud differentiation process and the quantity and vitality of buds. Furthermore, the study examined the response of flowering and fruiting to cultivation methods for shoot growth, including layering and plant growth regulator application. The results showed that (a) layering and application of plant growth regulators for Z. armatum accelerated the process of flower bud differentiation by approximately 20 days compared to… More >

  • Open Access

    ARTICLE

    Silencing of the Nonspecific Phospholipase C6 (NPC6) Gene Induces Ricinoleic Acid Accumulation in Castor Seeds

    Yong Zhao2,#, Lili Li1,#, Rui Luo1, Mu Peng1, Tongtong Jiang1, Mingda Yin1, Yanpeng Wen1, Zihan Wang1, Fenglan Huang1,4,5,6,7,*, Fanjuan Meng3,*

    Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2023.031495

    Abstract Castor, scientifically known as Ricinus communis L., is among the top ten oil crops globally. It is considered a renewable resource and is commonly referred to as ‘green oil’. Castor seeds contain castor oil as their main component, which is predominantly composed of ricinoleic acid. This study utilized RNAi technology to silence the NPC6 gene in NO.2129 castor, resulting in the creation of mutant plants L1 and L2. The weight of 100 dry seed kernels from L1 and L2 exceeds that from NO.2129. The crude fat and ricinoleic acid levels of L1 and L2 were higher than those of NO.2129… More >

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