Search Results

You are looking at 91 - 100 of 765 items for :

  • Refine by Access: User-accessible Content x
Clear All
Free access

Zhimin Yang, Jingjin Yu, Emily Merewitz, and Bingru Huang

chickling-pea ( Lathyrus sativus ) seedlings as measured by the degree of lipid peroxidation ( Xiong et al., 2006 ). Glycine betaine has also been reported to scavenge for ROS ( Smirnoff and Cumbes, 1989 ) and protect plants from salinity-induced oxidative

Free access

Zhen Shu, Yimin Shi, Hongmei Qian, Yiwei Tao, and Dongqin Tang

Chen, 2007 ). Senescence of plant tissues is generally accompanied by respiration increases; breakdown of carbohydrates, proteins, lipids, and nucleic acids ( Singh et al., 2000 ); higher production of reactive oxygen species (ROS) ( Del Rio et al

Free access

Richard Voisine, Claude Willemot, and Louis Vézina

Cauliflowers (Brassica oleracea) were irradiated at 0, 2, and 4 kGy and stored 8 days at 13°C. Development of yellow color and browning of the in florescence, increase in membrane electrolyte leakage and reduction of protein recovery in microsomal membranes were observed over the storage period. Changes in membrane free fatty acids, lipid phosphorus content, peroxydation level, and fatty acid composition of polar lipids also occurred. These results indicate an important modification of cellular membranes. The direct effect of gamma rays on membrane lipids via free radical production and subsequent destabilization of the lipid bilayer during storage could be responsable for earlier onset of senescence.

Open access

Qiuyue Ma, Shushun Li, Jing Wen, Lu Zhu, Kunyuan Yan, Qianzhong Li, Shuxian Li, and Bin Zhang

gain a better understanding of the regulation of lipid metabolism. In this study, the FA content and composition in developing seeds were analyzed and a time-series analysis of transcriptomic data was performed to reveal DEGs in six phases of A

Free access

Marjorie Reyes-Díaz, Claudio Inostroza-Blancheteau, Rayen Millaleo, Edgardo Cruces, Cristián Wulff-Zottele, Miren Alberdi, and María de la Luz Mora

., 2003 ). Although Al 3+ cannot catalyze redox reactions, lipid peroxidation (LP) and the production of reactive oxygen species (ROS) are common and early symptoms of Al 3+ toxicity in plants, followed by alterations in the integrity of the plasma

Free access

Yuliya A. Salanenka, Martin C. Goffinet, and Alan G. Taylor

Cucurbitaceae seeds ( Ramakrishna and Amritphale, 2005 ; Yim and Bradford, 1998 ). This envelope is reported to consist of a single cell layer of endosperm whose outer surface is covered by lipid and callose layers ( Yim and Bradford, 1998 ). The PE envelope of

Free access

Lixin Xu, Liebao Han, and Bingru Huang

), hydroxyl radical (OH*), and hydrogen peroxide (H 2 O 2 ), which can attack lipids, proteins, carbohydrates, and nucleic acids ( Smirnoff, 1993 ). To minimize and eliminate oxidative damage, plants have evolved an antioxidant defense system comprising

Free access

Kaori Ando and Rebecca Grumet

highly abundant transcripts (present at >0.15% of total EST reads) are listed in Table 3 . The predicted functions included latex-related proteins, and proteins associated with lipids, growth, protein synthesis, defense, phloem transport, and

Free access

Ustun Sahin, Melek Ekinci, Fatih Mehmet Kiziloglu, Ertan Yildirim, Metin Turan, Recep Kotan, and Selda Ors

oven at 70 °C for 48 h to obtain dry weight (DW). Values of FW, TW, and DW were used to determine the LRWC using the following equation: Lipid peroxidation (measurement of MDA). Lipid peroxidation was estimated by determining the MDA contents according

Free access

Cui-ping Hua, Zhong-kui Xie, Zhi-jiang Wu, Yu-bao Zhang, Zhi-hong Guo, Yang Qiu, Le Wang, and Ya-jun Wang

stress and lipid peroxidation of lily roots, increased the content of H 2 O 2 and MDA, and induced the changes of activities of antioxygen protective enzymes and the content of total phenol. Other research demonstrates the phytotoxicity of PA, which