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BMC Plant Biology

William O Asiche, Oscar W Mitalo, Yuka Kasahara, Yasuaki Tosa, Eric G Mworia, Willis O Owino, Koichiro Ushijima, Ryohei Nakano, Kentaro Yano, Yasutaka Kubo
BACKGROUND: Kiwifruit are classified as climacteric since exogenous ethylene (or its analogue propylene) induces rapid ripening accompanied by ethylene production under positive feedback regulation. However, most of the ripening-associated changes (Phase 1 ripening) in kiwifruit during storage and on-vine occur largely in the absence of any detectable ethylene. This ripening behavior is often attributed to basal levels of system I ethylene, although it is suggested to be modulated by low temperature...
March 21, 2018: BMC Plant Biology
Ali El-Keblawy, Hatem A Shabana, Teresa Navarro, Sameh Soliman
Following publication of the original article [1] author Hatem Shabana wrote to say that one of her affiliations was missing. The affiliation is as follows: Departmento de Biología Vegetal, Universidad de Málaga, P. O. Box 59, 29080 Málaga, Spain.
March 20, 2018: BMC Plant Biology
Xiaolong Li, Shutian Tao, Shuwei Wei, Meiling Ming, Xiaosan Huang, Shaoling Zhang, Jun Wu
BACKGROUND: In plants, ERF genes participate in a variety of regulatory pathways, such as plant growth and biotic and/or abiotic stress responses. Although the genome of Chinese white pear ('Dangshansuli') has been released, knowledge regarding the ERF family in pear, such as gene functions, evolutionary history and expression patterns, remains limited. RESULTS: In our study, a total of 155 members of ERF families were identified in pear (Pyrus bretschneideri). The Ka and Ks values suggested that whole-genome duplication (WGD) and dispersed duplication have effectively contributed to the expansion of the pear ERF family...
March 20, 2018: BMC Plant Biology
Han He, Qiaosong Yang, Boran Shen, Sheng Zhang, Xinxiang Peng
BACKGROUND: Although decreased protein expressions have been observed in NOA1 (Nitric Oxide Associated protein 1) deficient plants, the molecular mechanisms of how NOA1 regulates protein metabolism remain poorly understood. In this study, we have used a global comparative proteomic approach for both OsNOA1 suppression and overexpression transgenic lines under two different temperatures, in combination with physiological and biochemical analyses to explore the regulatory mechanisms of OsNOA1 in rice...
March 16, 2018: BMC Plant Biology
Junting Jia, Pincang Zhao, Liqin Cheng, Guangxiao Yuan, Weiguang Yang, Shu Liu, Shuangyan Chen, Dongmei Qi, Gongshe Liu, Xiaoxia Li
BACKGROUND: MADS-box genes are categorized into A, B, C, D and E classes and are involved in floral organ identity and flowering. Sheepgrass (Leymus chinensis (Trin.) Tzvel) is an important perennial forage grass and adapts well to many adverse environments. However, there are few studies on the molecular mechanisms of flower development in sheepgrass, especially studies on MADS-domain proteins. RESULTS: In this study, we cloned 11 MADS-box genes from sheepgrass (Leymus chinensis (Trin...
March 14, 2018: BMC Plant Biology
Tong Chen, Dongchao Ji, Shiping Tian
BACKGROUND: The assembly of protein complexes and compositional lipid patterning act together to endow cells with the plasticity required to maintain compositional heterogeneity with respect to individual proteins. Hence, the applications for imaging protein localization and dynamics require high accuracy, particularly at high spatio-temporal level. RESULTS: We provided experimental data for the applications of Variable-Angle Epifluorescence Microscopy (VAEM) in dissecting protein dynamics in plant cells...
March 14, 2018: BMC Plant Biology
Guaiqiang Chai, Chunlian Li, Feng Xu, Yang Li, Xue Shi, Yong Wang, Zhonghua Wang
BACKGROUND: The cuticle covers the surface of the polysaccharide cell wall of leaf epidermal cells and forms an essential diffusion barrier between the plant and the environment. The cuticle is composed of cutin and wax. Cuticular wax plays an important role in the survival of plants by serving as the interface between plants and their biotic and abiotic environments, especially restricting nonstomatal water loss. Leaf cuticular waxes of hexaploid wheat at the seedling stage mainly consist of primary alcohols, aldehydes, fatty acids, alkane and esters...
March 5, 2018: BMC Plant Biology
Kai-Chau Huang, Wei-Chih Lin, Wan-Hsing Cheng
BACKGROUND: Although the nucleolus involves two major functions: pre-rRNA processing and ribosome biogenesis/assembly, increasing evidence indicates that it also plays important roles in response to abiotic stress. However, the possible regulatory mechanisms underlying the nucleolar proteins responsive to abiotic stress are largely unknown. High salinity is one of the major abiotic stresses, which hinders plant growth and productivity. Here, genetic screening approach was used to identify a salt hypersensitive mutant 9 (sahy9) mutant, also known as apum23, in Arabidopsis thaliana...
March 1, 2018: BMC Plant Biology
Anna Rita Paolacci, Giulio Catarcione, Luisa Ederli, Claudia Zadra, Stefania Pasqualini, Maurizio Badiani, Rita Musetti, Simonetta Santi, Mario Ciaffi
Following publication of the original article [1], it came to the attention of the authors that they had omitted to acknowledge the University of Parma. The Acknowledgement section should read as follows: "The authors kindly acknowledge the University of Parma (Department of Chemistry, Life Sciences and Environmental Sustainability; formerly Department of Life Sciences/Evolutionary and Functional Biology) for the transfer of funds obtained from the Ager project: GIALLUMI DELLA VITE: TECNOLOGIE INNOVATIVE PER LA DIAGNOSI E LO STUDIO DELLE INTERAZIONI PIANTA/PATOGENO, BANDO AGER VITICOLTURA DA VINO"...
February 21, 2018: BMC Plant Biology
Jie Guo, Weiping Shi, Zheng Zhang, Jingye Cheng, Daizhen Sun, Jin Yu, Xinlei Li, Pingyi Guo, Chenyang Hao
BACKGROUND: Yield improvement is an ever-important objective of wheat breeding. Studying and understanding the phenotypes and genotypes of yield-related traits has potential for genetic improvement of crops. RESULTS: The genotypes of 215 wheat cultivars including 11 founder parents and 106 derivatives were analyzed by the 9 K wheat SNP iSelect assay. A total of 4138 polymorphic single nucleotide polymorphism (SNP) loci were detected on 21 chromosomes, of which 3792 were mapped to single chromosome locations...
February 20, 2018: BMC Plant Biology
Youmei Wang, Chaoqun Pang, Xukai Li, Zhen Hu, Zhengyi Lv, Bo Zheng, Peng Chen
Following publication of the original article [1], the authors reported that there was a mistake in the presentation of their funding information. The sentence "This study was supported by the National Natural Science Foundation of China (31,100,268 to Peng Chen, 31,270,658 to Bo Zheng);" should instead read "This study was supported by the National Natural Science Foundation of China (31100268 to Peng Chen, 31370604 to Bo Zheng);".
February 19, 2018: BMC Plant Biology
Huijun Jiao, Xing Liu, Shuguang Sun, Peng Wang, Xin Qiao, Jiaming Li, Chao Tang, Juyou Wu, Shaoling Zhang, Shutian Tao
BACKGROUND: The hydroxyproline-rich glycoprotein (HRGP) superfamily, comprising three families (arabinogalactan-proteins, AGPs; extensins, EXTs; proline-rich proteins, PRPs), is a class of proline-rich proteins that exhibit high diversity and are involved in many aspects of plant biology. RESULTS: In this study, 838 HRGPs were identified from Chinese white pear (Pyrus bretschneideri) by searching for biased amino acid composition and conserved motifs. 405 HRGPs were derived from whole genome duplication (WGD) events which is suggested to be the major force of driving HRGPs expansion and the recent WGD event shared by apple and pear generated most duplicated HRGPs in pear...
February 17, 2018: BMC Plant Biology
Yunting Lei, Yuxing Xu, Christian Hettenhausen, Chengkai Lu, Guojing Shen, Cuiping Zhang, Jing Li, Juan Song, Honghui Lin, Jianqiang Wu
BACKGROUND: Soil salinity is an important factor affecting growth, development, and productivity of almost all land plants, including the forage crop alfalfa (Medicago sativa). However, little is known about how alfalfa responds and adapts to salt stress, particularly among different salt-tolerant cultivars. RESULTS: Among seven alfalfa cultivars, we found that Zhongmu-1 (ZM) is relatively salt-tolerant and Xingjiang Daye (XJ) is salt-sensitive. Compared to XJ, ZM showed slower growth under low-salt conditions, but exhibited stronger tolerance to salt stress...
February 15, 2018: BMC Plant Biology
Tao Liu, Xiaohui Hu, Jiao Zhang, Junheng Zhang, Qingjie Du, Jianming Li
BACKGROUND: Low temperature is a crucial factor influencing plant growth and development. The chlorophyll precursor, 5-aminolevulinic acid (ALA) is widely used to improve plant cold tolerance. However, the interaction between H 2 O 2 and cellular redox signaling involved in ALA-induced resistance to low temperature stress in plants remains largely unknown. Here, the roles of ALA in perceiving and regulating low temperature-induced oxidative stress in tomato plants, together with the roles of H 2 O 2 and cellular redox states, were characterized...
February 15, 2018: BMC Plant Biology
Julia Weiss, Marta I Terry, Marina Martos-Fuentes, Lisa Letourneux, Victoria Ruiz-Hernández, Juan A Fernández, Marcos Egea-Cortines
BACKGROUND: Cowpea (Vigna unguiculata) is an important source of protein supply for animal and human nutrition. The major storage globulins VICILIN and LEGUMIN (LEG) are synthesized from several genes including LEGA, LEGB, LEGJ and CVC (CONVICILIN). The current hypothesis is that the plant circadian core clock genes are conserved in a wide array of species and that primary metabolism is to a large extent controlled by the plant circadian clock. Our aim was to investigate a possible link between gene expression of storage proteins and the circadian clock...
February 14, 2018: BMC Plant Biology
Licong Yi, Chunhong Chen, Shuai Yin, Haitao Li, Zhaohong Li, Bo Wang, Graham J King, Jing Wang, Kede Liu
BACKGROUND: Allelic variation at the FRIGIDA (FRI) locus is a major contributor to natural variation of flowering time and vernalization requirement in Arabidopsis thaliana. Dominant FRI inhibits flowering by activating the expression of the MADS box transcriptional repressor FLOWERING LOCUS C (FLC), which represses flowering prior to vernalization. Four FRI orthologues had been identified in the domesticated amphidiploid Brassica napus. Linkage and association studies had revealed that one of the FRI orthologues, BnaA3...
February 13, 2018: BMC Plant Biology
Yongqing Wan, Mingzhu Mao, Dongli Wan, Qi Yang, Feiyun Yang, Mandlaa, Guojing Li, Ruigang Wang
BACKGROUND: WRKY transcription factors, one of the largest families of transcriptional regulators in plants, play important roles in plant development and various stress responses. The WRKYs of Caragana intermedia are still not well characterized, although many WRKYs have been identified in various plant species. RESULTS: We identified 53 CiWRKY genes from C. intermedia transcriptome data, 28 of which exhibited complete open reading frames (ORFs). These CiWRKYs were divided into three groups via phylogenetic analysis according to their WRKY domains and zinc finger motifs...
February 9, 2018: BMC Plant Biology
Daniel C Frailey, Srinivasa R Chaluvadi, Justin N Vaughn, Caroline G Coatney, Jeffrey L Bennetzen
BACKGROUND: The chloroplast genomes (plastome) of most plants are highly conserved in structure, gene content, and gene order. Parasitic plants, including those that are fully photosynthetic, often contain plastome rearrangements. These most notably include gene deletions that result in a smaller plastome size. The nature of gene loss and genome structural rearrangement has been investigated in several parasitic plants, but their timing and contributions to the adaptation of these parasites requires further investigation, especially among the under-studied hemi-parasites...
February 6, 2018: BMC Plant Biology
Kaliamoorthy Sivasakthi, Mahendar Thudi, Murugesan Tharanya, Sandip M Kale, Jana Kholová, Mahamat Hissene Halime, Deepa Jaganathan, Rekha Baddam, Thiyagarajan Thirunalasundari, Pooran M Gaur, Rajeev K Varshney, Vincent Vadez
BACKGROUND: Terminal drought stress leads to substantial annual yield losses in chickpea (Cicer arietinum L.). Adaptation to water limitation is a matter of matching water supply to water demand by the crop. Therefore, harnessing the genetics of traits contributing to plant water use, i.e. transpiration rate and canopy development dynamics, is important to design crop ideotypes suited to a varying range of water limited environments. With an aim of identifying genomic regions for plant vigour (growth and canopy size) and canopy conductance traits, 232 recombinant inbred lines derived from a cross between ICC 4958 and ICC 1882, were phenotyped at vegetative stage under well-watered conditions using a high throughput phenotyping platform (LeasyScan)...
February 6, 2018: BMC Plant Biology
Yunpu Zheng, Fei Li, Lihua Hao, Arshad Ali Shedayi, Lili Guo, Chao Ma, Bingru Huang, Ming Xu
BACKGROUND: Grasslands are one of the most representative vegetation types accounting for about 20% of the global land area and thus the response of grasslands to climate change plays a pivotal role in terrestrial carbon balance. However, many current climate change models, based on earlier results of the doubling-CO 2 experiments, may overestimate the CO 2 fertilization effect, and as a result underestimate the potentially effects of future climate change on global grasslands when the atmospheric CO 2 concentration goes beyond the optimal level...
February 5, 2018: BMC Plant Biology
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