Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
Growth And Physiological Responses Of Maize And Sorghum Genotypes To Salt Stress, Youping Sun, Wenwei Xu, Denise Rodriguez, Youping Sun
Growth And Physiological Responses Of Maize And Sorghum Genotypes To Salt Stress, Youping Sun, Wenwei Xu, Denise Rodriguez, Youping Sun
Plants, Soils, and Climate Faculty Publications
The growth and physiological responses of four maize inbred lines (CUBA1, B73, B5C2, and BR1) and four sorghum hybrids (SS304, NK7829, Sordan 79, and KS585) to salinity were determined. Fifteen days after sowing, seedlings were irrigated with nutrient solution (control) at electrical conductivity (EC) of 1.5 dS m−1 or saline solution at EC of 8.0 dS m−1 (salt treatment) for 40 days. Dry weight of shoots in maize was reduced by 58%, 65%, 62%, and 69% in CUBA1, B73, B5C2, and BR1, respectively, while that of sorghum was reduced by 51%, 56%, 56%, and 76% in SS304, NK7829, Sordan79, and …
In Vitro Regeneration Of Rudbeckia Hirta ‘Plainview Farm’ From Leaf Tissue, Youping Sun, Lijuan Han, Donglin Zhang
In Vitro Regeneration Of Rudbeckia Hirta ‘Plainview Farm’ From Leaf Tissue, Youping Sun, Lijuan Han, Donglin Zhang
Plants, Soils, and Climate Faculty Publications
Rudbeckia hirta ‘Plainview Farm’, a new multiple-layered ray flowered cultivar, shows potential for potted plant production. After years of seed germination, this specific flower morphological trait was still unstable from generation to generation. To maintain its unique features, leaf sections (0.25 cm2 ) were cultured on Murashige and Skoog (MS) medium supplemented with either BA (0.5, 1.0, or 2.0 mg·L1 ), KIN (2.5, 5, or 10 mg·L-1 ), or ZT (0.5, 1.0, or 2.0 mg·L-1 )toinduce callus and microshoots. After cultivation for 33 days, all cytokinin treatments significantly induced callus and the callus size were 1.5- to-2.4-fold bigger than those …
Glycolate Oxidase Modulates Reactive Oxygen Species–Mediated Signal Transduction During Nonhost Resistance In Nicotiana Benthamiana And Arabidopsis, Clemencia M. Rojas, Muthappa Senthil-Kumar, Keri Wang, Choong-Min Ryu, Amita Kaundal, Kirankumar S. Mysore
Glycolate Oxidase Modulates Reactive Oxygen Species–Mediated Signal Transduction During Nonhost Resistance In Nicotiana Benthamiana And Arabidopsis, Clemencia M. Rojas, Muthappa Senthil-Kumar, Keri Wang, Choong-Min Ryu, Amita Kaundal, Kirankumar S. Mysore
Plants, Soils, and Climate Faculty Publications
In contrast to gene-for-gene disease resistance, nonhost resistance governs defense responses to a broad range of potential pathogen species. To identify specific genes involved in the signal transduction cascade associated with nonhost disease resistance, we used a virus-induced gene-silencing screen in Nicotiana benthamiana, and identified the peroxisomal enzyme glycolate oxidase (GOX) as an essential component of nonhost resistance. GOX-silenced N. benthamiana and Arabidopsis thaliana GOX T-DNA insertion mutants are compromised for nonhost resistance. Moreover, Arabidopsis gox mutants have lower H2O2 accumulation, reduced callose deposition, and reduced electrolyte leakage upon inoculation with hypersensitive response–causing nonhost pathogens. Arabidopsis gox mutants were not …