The Experts below are selected from a list of 8193 Experts worldwide ranked by ideXlab platform
Hongwei Zhu - One of the best experts on this subject based on the ideXlab platform.
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Graphene oxide as an antimicrobial agent can extend the vase life of cut flowers
Nano Research, 2018Co-Authors: Lichao Qian, Xu Liu, Meirong Huang, Yule Liu, Guoqiang Chen, Dusan Losic, Hongwei ZhuAbstract:“PlantNanOmics” is an emerging topic in agricultural research that explores the potential effect of application of nanomaterials on plant growth. Graphene oxide (GO) has excellent properties due to its basal carbon plane and oxygen-containing functional groups. In the present work, the antimicrobial activity of GO was exploited to extend the vase life and improve the quality of cut roses (cv. Carola). The results revealed that the cut roses cultivated in low doses of GO (0.1 mg/L) had longer vase life, larger diameter, and better water relations. Microbial contaminations at the basal stem end is the most common reason for stem blockage that causes water stress and early wilting of cut flowers. GO was found to act as a germicide, effectively inhibiting the microbial growth at the cut stem end and improving water uptake and water balance of cut roses. Therefore, GO can serve as a promising preservative to increase the Ornamental Value of cut flowers.
Yao Weihua - One of the best experts on this subject based on the ideXlab platform.
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noctilucent finish coat protective agent for permeable concrete pavements and pavement containing noctilucent finish coat protective agent and construction method thereof
2016Co-Authors: Wang Wenhua, Qian Weisheng, Sun Gang, Yin Mingwei, Zhou Yajun, Sheng Jiajie, Wang Yulian, Guo Yong, Yao WeihuaAbstract:The invention provides a noctilucent finish coat protective agent for permeable concrete pavements. The noctilucent finish coat protective agent contains the following components in parts by weight: 35-60 parts of resin, 15-30 parts of organic solvent, 0.1-0.55 part of leveling agent, 0.3-1 part of anti-settling agent, 15-35 parts of noctilucent powder and 7-12 parts of curing agent. The noctilucent powder is rare-earth-element-activated alkaline soil aluminate or alkaline soil silicate. The colored self-luminescent water-permeable concrete pavement has favorable Ornamental Value in the day time, can absorb and store light energies and emit light at night, has the effects of illumination indication and decoration, and has the advantages of favorable water permeability, favorable air permeability and high compressive strength.
Ecehan Akman - One of the best experts on this subject based on the ideXlab platform.
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comparison of different androgenesis protocols for doubled haploid plant production in Ornamental pepper capsicum annuum l
Turkish Journal of Biology, 2016Co-Authors: Esin Arı, Tolga Yıldırım, Nedim Mutlu, Saadet Büyükalaca, Ümmü Gökmen, Ecehan AkmanAbstract:Doubled haploid (DH) plant production plays an important role in pepper (Capsicum annuum L.) breeding for development of new varieties. However, information is lacking for DH plant production in pepper genotypes carrying Ornamental Value. The major goal of this study was to produce DH Ornamental pepper lines having the mentioned Value. Androgenic responses of 48 genotypes at the F2 or F3 generation were compared in each of three androgenesis protocols to determine the most effective method. Of the three protocols tested, anthers were placed on two different semisolid culture media and on a double-layer medium also called shed-microspore culture medium. The results revealed that the shed-microspore culture protocol was superior to both semisolid anther culture protocols. The average numbers of total and normal-looking embryos per bud of the most responsive genotype were 102.90 and 34.11, respectively. We report here, a total of 122 regenerated Ornamental pepper plants with Ornamental Value; 63 DH, 52 haploid, and 7 mixoploid plants were produced in the present study. The spontaneous diploidization rate was 51.6% based on flow cytometry analyses. The results showed that the shed-microspore culture protocol could be used effectively for the development of DH lines in Ornamental pepper breeding programs.
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Comparison of different androgenesis protocols for doubled haploid plant production in Ornamental pepper (Capsicum annuum L.)
2016Co-Authors: Esin Arı, Tolga Yıldırım, Nedim Mutlu, Saadet Büyükalaca, Ümmü Gökmen, Ecehan AkmanAbstract:Doubled haploid (DH) plant production plays an important role in pepper (Capsicum annuum L.) breeding for development of new varieties. However, information is lacking for DH plant production in pepper genotypes carrying Ornamental Value. The major goal of this study was to produce DH Ornamental pepper lines having the mentioned Value. Androgenic responses of 48 genotypes at the F2 or F3 generation were compared in each of three androgenesis protocols to determine the most effective method. Of the three protocols tested, anthers were placed on two different semisolid culture media and on a double-layer medium also called shed-microspore culture medium. The results revealed that the shed-microspore culture protocol was superior to both semisolid anther culture protocols. The average numbers of total and normal-looking embryos per bud of the most responsive genotype were 102.90 and 34.11, respectively. We report here, a total of 122 regenerated Ornamental pepper plants with Ornamental Value; 63 DH, 52 haploid, and 7 mixoploid plants were produced in the present study. The spontaneous diploidization rate was 51.6% based on flow cytometry analyses. The results showed that the shed-microspore culture protocol could be used effectively for the development of DH lines in Ornamental pepper breeding programs.Doubled haploid (DH) plant production plays an important role in pepper (Capsicum annuum L.) breeding for development of new varieties. However, information is lacking for DH plant production in pepper genotypes carrying Ornamental Value. The major goal of this study was to produce DH Ornamental pepper lines having the mentioned Value. Androgenic responses of 48 genotypes at the F2 or F3 generation were compared in each of three androgenesis protocols to determine the most effective method. Of the three protocols tested, anthers were placed on two different semisolid culture media and on a double-layer medium also called shed-microspore culture medium. The results revealed that the shed-microspore culture protocol was superior to both semisolid anther culture protocols. The average numbers of total and normal-looking embryos per bud of the most responsive genotype were 102.90 and 34.11, respectively. We report here, a total of 122 regenerated Ornamental pepper plants with Ornamental Value; 63 DH, 52 haploid, and 7 mixoploid plants were produced in the present study. The spontaneous diploidization rate was 51.6% based on flow cytometry analyses. The results showed that the shed-microspore culture protocol could be used effectively for the development of DH lines in Ornamental pepper breeding programs
Yoichiro Hoshino - One of the best experts on this subject based on the ideXlab platform.
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Simultaneous production of triploid and hexaploid plants by endosperm culture with colchicine treatment in diploid Haemanthus albiflos
Plant Cell Tissue and Organ Culture (PCTOC), 2021Co-Authors: Arisa Nakano, Masahiro Mii, Yoichiro HoshinoAbstract:Triploid plants were regenerated from endosperm-derived callus via somatic embryogenesis and adventitious shoot formation in diploid Haemanthus albiflos . Hexaploid plants were induced by colchicine treatment to the endosperm-derived callus. Abstract Haemanthus albiflos (Amaryllidaceae) is a monocotyledonous plant with high Ornamental Value. To increase the Ornamental Value of this species, polyploidy breeding was programmed in this study by employing endosperm culture for producing triploid plants. Further, we tried to produce hexaploid plant by colchicine treatment to endosperm-derived callus. As an initial step, endosperm explants harvested 8 weeks after flowering were cultured on Murashige and Skoog (MS) medium containing 5 mg L^−1 4-amino-3,5,6-trichloropicolinic acid (picloram) and 5 mg L^−1 6-benzylaminopurine (BAP) for callus induction. Induced calli were maintained on the same medium. Somatic embryos and adventitious shoots were observed after transfer the callus segments onto 1/2MS medium without plant growth regulators (PGRs). Further development of somatic embryos and adventitious shoots were achieved by transferring the callus segments onto 0.5 mg L^−1 1-naphthaleneacetic acid (NAA) and 1 mg L^−1 BAP. Complete plantlets were established after placing the regenerated shoots and developing embryos on 1/2MS medium without PGRs. Flow cytometric analysis revealed that diploid, triploid, and tetraploid plantlets were involved in these regenerants. When the endosperm-derived callus segments were treated with 0.2% (w/v) colchicine for 24, 48, and 72 h, 4 hexaploid plants were regenerated through the same regeneration procedures as mentioned above. Ploidy levels of the representative diploid, triploid, and hexaploid plants were also confirmed by counting chromosome numbers. Availability of endosperm culture in combination with colchicine treatment was discussed as the means for producing polyploid plants. Graphic abstract
Somnath Bhattacharyya - One of the best experts on this subject based on the ideXlab platform.
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induction and identification of tetraploids using in vitro colchicine treatment of gerbera jamesonii bolus cv sciella
Plant Cell Tissue and Organ Culture, 2011Co-Authors: Saikat Gantait, Nirmal Mandal, Somnath BhattacharyyaAbstract:To induce variation through chromosome doubling in Gerbera jamesonii Bolus cv. Sciella, two-week-old in vitro grown shoots were treated with various concentrations of colchicine (0.01, 0.05, 0.10, 0.50 or 1% w/v) for 2, 4 or 8 h. Treated shoots were then cultured on Murashige and Skoog (MS) medium supplemented with 8.8 μM 6-benzyladenine (BA) and 155 μM adenine sulphate (ADS), and subsequently transferred to fresh MS medium containing 2.85 μM indole-3 acetic acid (IAA) for rooting. When shoots were treated with 0.1% colchicine for 8 h, 64% of recovered plantlets were tetraploid. Ploidy of plantlets was confirmed by flow cytometry, stomatal analysis, and morphological characters. Tetraploid plantlets displayed slower proliferation along with higher vigor and thickened broad leaves. Moreover, tetraploid plants developed larger flowers, longer stalks, and have improved vase-life, all contributing to higher Ornamental Value of gerbera.
