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Plant Science: An International Journal of Experimental Plant Biology

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https://www.readbyqxmd.com/read/27964787/curd-development-associated-gene-cdag1-in-cauliflower-brassica-oleracea-l-var-botrytis-could-result-in-enlarged-organ-size-and-increased-biomass
#1
Hui Li, Qian Liu, Qingli Zhang, Erjun Qin, Chuan Jin, Yu Wang, Mei Wu, Guangshuang Shen, Chengbin Chen, Wenqin Song, Chunguo Wang
The curd is a specialized organ and the most important product organ of cauliflower (Brassica oleracea L. var. botrytis). However, the mechanism underlying the regulation of curd formation and development remains largely unknown. In the present study, a novel homologous gene containing the Organ Size Related (OSR) domain, namely, CDAG1 (Curd Development Associated Gene 1) was identified in cauliflower. Quantitative analysis indicated that CDAG1 showed significantly higher transcript levels in young tissues...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27964786/dynein-light-chain-family-genes-in-15-plant-species-identification-evolution-and-expression-profiles
#2
Jun Cao, Xiangyang Li, Yueqing Lv
Dynein light chain (DLC) is one important component of the dynein complexes, which have been proved involving in a variety of cellular functions. However, higher plants lack all other components of the complexes except DLCs, suggesting that in plants, the DLC protein does not carry out the same function as it in animals. Therefore, the function of this family in plants is mysterious. In this study, we investigated the DLC gene family in 15 plant species and analyzed their expression profiles. In total, 128 DLC genes were identified from the 15 studied plant species and were divided into eight groups by their phylogenetic relation...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27964785/transparent-testa-glabra-1-ubiquitously-regulates-plant-growth-and-development-from-arabidopsis-to-foxtail-millet-setaria-italica
#3
Kaige Liu, Shuanghui Qi, Dong Li, Changyu Jin, Chenhao Gao, Shaowei Duan, Baili Feng, Mingxun Chen
TRANSPARENT TESTA GLABRA 1 of Arabidopsis thaliana (AtTTG1) is a WD40 repeat transcription factor that plays multiple roles in plant growth and development, particularly in seed metabolite production. In the present study, to determine whether SiTTG1 of the phylogenetically distant monocot foxtail millet (Setaria italica) has similar functions, we used transgenic Arabidopsis and Nicotiana systems to explore its activities. We found that SiTTG1 functions as a transcription factor. Overexpression of the SiTTG1 gene rescued many of the mutant phenotypes in Arabidopsis ttg1-13 plants...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27964784/arabidopsis-cbl-interacting-protein-kinase-3-interacts-with-abr1-an-apetala2-domain-transcription-factor-to-regulate-aba-responses
#4
Sibaji K Sanyal, Poonam Kanwar, Akhilesh K Yadav, Cheshta Sharma, Ashish Kumar, Girdhar K Pandey
Calcium (Ca(2+)) plays a vital role as a second messenger in several signaling pathways in plants. The calcineurin B-like proteins (CBLs) represent a family of plant calcium-binding proteins that function in propagating Ca(2+) signals by interacting with CBL interacting protein kinases (CIPKs). Phosphorylation of CBL by CIPK is essential for the module to display full activity towards its target protein. Previous genetic analysis showed that the function of CBL9-CIPK3 module was implicated in negatively regulating seed germination and early development...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27964783/silencing-of-bntt1-family-genes-affects-seed-flavonoid-biosynthesis-and-alters-seed-fatty-acid-composition-in-brassica-napus
#5
Jianping Lian, Xiaochun Lu, Nengwen Yin, Lijuan Ma, Jing Lu, Xue Liu, Jiana Li, Jun Lu, Bo Lei, Rui Wang, Yourong Chai
TRANSPARENT TESTA1 (TT1) is a zinc finger protein that contains a WIP domain. It plays important roles in controlling differentiation and pigmentation of the seed coat endothelium, and can affect the expression of early biosynthetic genes and late biosynthetic genes of flavonoid biosynthesis in Arabidopsis thaliana. In Brassica napus (AACC, 2n=38), the functions of BnTT1 genes remain unknown and few studies have focused on their roles in fatty acid (FA) biosynthesis. In this study, BnTT1 family genes were silenced by RNA interference, which resulted in yellow rapeseed, abnormal testa development (a much thinner testa), decreased seed weight, and altered seed FA composition in B...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27964782/the-pathogen-inducible-promoter-of-defense-related-lsgrp1-gene-from-lilium-functioning-in-phylogenetically-distinct-species-of-plants
#6
Chia-Hua Lin, Chao-Ying Chen
A suitable promoter greatly enhances the efficiency of target gene expression of plant molecular breeding and farming; however, only very few promoters are available for economically important non-graminaceous ornamental monocots. In this study, an 868-bp upstream region of defense-related LsGRP1 of Lilium, named PLsGRP1, was cloned by genome walking and proven to exhibit promoter activity in Nicotiana benthamiana and Lilium 'Stargazer' as assayed by agroinfiltration-based β-glucuronidase (GUS) expression system...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27964781/plant-architecture-and-grain-yield-are-regulated-by-the-novel-dhhc-type-zinc-finger-protein-genes-in-rice-oryza-sativa-l
#7
Bo Zhou, Jian Zhong Lin, Dan Peng, Yuan Zhu Yang, Ming Guo, Dong Ying Tang, Xiaofeng Tan, Xuan Ming Liu
In many plants, architecture and grain yield are affected by both the environment and genetics. In rice, the tiller is a vital factor impacting plant architecture and regulated by many genes. In this study, we cloned a novel DHHC-type zinc finger protein gene Os02g0819100 and its alternative splice variant OsDHHC1 from the cDNA of rice (Oryza sativa L.), which regulate plant architecture by altering the tiller in rice. The tillers increased by about 40% when this type of DHHC-type zinc finger protein gene was over-expressed in Zhong Hua 11 (ZH11) rice plants...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27964780/reversion-of-hyperhydricity-in-pink-dianthus-chinensis-l-plantlets-by-agno3-and-its-associated-mechanism-during-in-vitro-culture
#8
Hongyang Gao, Xiuying Xia, Lijia An, Xin Xin, Yuan Liang
Hyperhydricity occurs frequently in plant tissue culture and can severely affect commercial micropropagation and genetic improvement of the cultured plantlets. Hyperhydric shoots are charaterzized by high water content, but how this occurs is still a subject of investigation. Silver ion (Ag(+)) can reduce the extent of hyperhydricity in plants, but its effect on the reversion of hyperhydric plantlets and the underlying mechanism of reversion has not been clarified. In this study, about 67% of the hyperhydric Dianthus chinensis L...
January 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27969001/glutathione-and-abscisic-acid-supplementation-influences-somatic-embryo-maturation-and-hormone-endogenous-levels-during-somatic-embryogenesis-in-podocarpus-lambertii-klotzsch-ex-endl
#9
Hugo Pacheco de Freitas Fraga, Leila do Nascimento Vieira, Catarina Corrêa Puttkammer, Henrique Pessoa Dos Santos, Julio de Andrade Garighan, Miguel Pedro Guerra
Here we propose a protocol for embryogenic cultures induction, proliferation and maturation for the Brazilian conifer Podocarpus lambertii, and investigated the effect of abscisic acid (ABA) and glutathione (GSH) supplementation on the maturation phase. ABA, zeatin (Z) and salicylic acid (SA) endogenous levels were quantified. Number of somatic embryos obtained in ABA-supplemented treatment was significant higher than in ABA-free treatment, showing the relevance of ABA supplementation during somatic embryos maturation...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27969000/transcript-and-hormone-analyses-reveal-the-involvement-of-aba-signalling-hormone-crosstalk-and-genotype-specific-biological-processes-in-cold-shock-response-in-wheat
#10
Balázs Kalapos, Petre Dobrev, Tibor Nagy, Pavel Vítámvás, János Györgyey, Gábor Kocsy, Ferenc Marincs, Gábor Galiba
The effect of one-day cold-shock on the transcriptome and phytohormones (auxin, cytokinins, abscisic, jasmonic and salicylic acids) was characterised in freezing-sensitive (Chinese Spring), highly freezing-tolerant (Cheyenne) and moderately freezing-tolerant (Chinese Spring substituted with Cheyenne's 5A chromosome) wheat genotypes. Altogether, 636 differentially expressed genes responding to cold-shock were identified. Defence genes encoding LEA proteins, dehydrins, chaperons and other temperature-stress responsive proteins were up-regulated in a genotype-independent manner...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968999/nuclear-dynamics-and-programmed-cell-death-in-arabidopsis-root-hairs
#11
Kang Tan, Chenxi Wen, Hualing Feng, Xiaoting Chao, Hui Su
In this paper we demonstrate the coupling of nuclear migration to the base of Arabidopsis root hairs with programmed cell death (PCD). Nuclear migration and positioning are fundamental processes of eukaryotic cells. To date, no evidence for a direct connection between nucleus migration and PCD has been described in the literature. Based on the findings of our previous study, we hereby further establish the regulatory role of caspase-3-like/DEVDase in root hair death and demonstrate nuclear migration to a position close to the root hair basement during PCD...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968998/the-arbuscular-mycorrhizal-fungus-rhizophagus-irregularis-differentially-regulates-the-copper-response-of-two-maize-cultivars-differing-in-copper-tolerance
#12
Miguel A Merlos, Ondrej Zitka, Adam Vojtech, Concepción Azcón-Aguilar, Nuria Ferrol
Arbuscular mycorrhiza can increase plant tolerance to heavy metals. The effects of arbuscular mycorrhiza on plant metal tolerance vary depending on the fungal and plant species involved. Here, we report the effect of the arbuscular mycorrhizal fungus Rhizophagus irregularis on the physiological and biochemical responses to Cu of two maize genotypes differing in Cu tolerance, the Cu-sensitive cv. Orense and the Cu-tolerant cv. Oropesa. Development of the symbiosis confers an increased Cu tolerance to cv. Orense...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968997/review-an-integrated-framework-for-crop-adaptation-to-dry-environments-responses-to-transient-and-terminal-drought
#13
REVIEW
Jens Berger, Jairo Palta, Vincent Vadez
As the incidence of water deficit and heat stress increases in many production regions there is an increasing requirement for crops adapted to these stresses. Thus it is essential to match water supply and demand, particularly during grain-filling. Here we integrate Grime's ecological strategies approach with traditional drought resistance/yield component frameworks describing plant responses to water deficit. We demonstrate that water use is a function of both short and longer term trade-offs between competing demands for carbon...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968996/ein3-interferes-with-the-sulfur-deficiency-signaling-in-arabidopsis-thaliana-through-direct-interaction-with-the-slim1-transcription-factor
#14
Anna Wawrzyńska, Agnieszka Sirko
Sulfur deficiency in plants leads to metabolic reprogramming through changes of gene expression. SLIM1 is so far the only characterized transcription factor associated strictly with sulfur deficiency stress in Arabidopsis thaliana. It belongs to the same protein family as EIN3, a major positive switch of ethylene signaling pathway. It binds to the specific cis sequence called UPE-box. Here we show that SLIM1 interacts with UPE-box as a homodimer. Interestingly, the same region of the protein is used for heterodimerization with EIN3; however, the heterodimer is not able to recognize UPE-box...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968995/a-reduction-of-sucrose-phosphate-synthase-sps-activity-affects-sucrose-starch-ratio-in-leaves-but-does-not-inhibit-normal-plant-growth-in-rice
#15
Yoichi Hashida, Tatsuro Hirose, Masaki Okamura, Ken-Ichiro Hibara, Ryu Ohsugi, Naohiro Aoki
Sucrose phosphate synthase (SPS) has been shown to mediate sucrose/starch ratio in plant leaves through studies of 'starch leaf' species that mainly accumulate starch in their leaves. However, the contribution of SPS to sucrose/starch ratio in rice leaves, which mainly accumulate sucrose (i.e., 'sugar leaf'), has not been confirmed due to inconsistencies in the results of previous studies. In this study, we analyzed mutant lines with reduced SPS activity, which were generated using Tos17 insertion, RNAi, and the CRISPR/Cas9 system...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968994/knocking-down-expression-of-the-auxin-amidohydrolase-iar3-alters-defense-responses-in-solanaceae-family-plants
#16
Sebastian D'Ippolito, Radomira Vankova, Matthieu H A J Joosten, Claudia A Casalongué, Diego F Fiol
In plants, indole-3-acetic acid (IAA) amido hydrolases (AHs) participate in auxin homeostasis by releasing free IAA from IAA-amino acid conjugates. We investigated the role of IAR3, a member of the IAA amido hydrolase family, in the response of Solanaceous plants challenged by biotrophic and hemi-biotrophic pathogens. By means of genome inspection and phylogenic analysis we firstly identified IAA-AH sequences and putative IAR3 orthologs in Nicotiana benthamiana, tomato and potato. We evaluated the involvement of IAR3 genes in defense responses by using virus-induced gene silencing...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968993/elevated-o3-increases-volatile-organic-compounds-via-jasmonic-acid-pathway-that-promote-the-preference-of-parasitoid-encarsia-formosa-for-tomato-plants
#17
Hongying Cui, Jianing Wei, Jianwei Su, Chuanyou Li, Feng Ge
The elevated atmospheric O3 level may change the interactions of plants and insects, which potentially affects direct and indirect plant defences. However, the underlying mechanism of the impact of elevated O3 on indirect plant defence, namely the efficacy of natural enemies, is unclear. Here we tested a hypothesis that linked the effects of elevated O3 and whitefly herbivory on tomato volatile releases mediated by the jasmonic acid (JA) pathway with the preferences of parasitoid Encarsia formosa for two different tomato genotypes (wild-type (Wt) and JA-deficient genotype (spr2))...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968992/evidence-for-a-non-overlapping-subcellular-localization-of-the-family-i-isoforms-of-soluble-inorganic-pyrophosphatase-in-arabidopsis-thaliana
#18
Francisca Morayna Gutiérrez-Luna, Ernesto Navarro de la Sancha, Lilián Gabriela Valencia-Turcotte, Sonia Vázquez-Santana, Rogelio Rodríguez-Sotres
Pyrophosphate is a byproduct of macromolecular biosynthesis and its degradation gives a thermodynamic impulse to cell growth. Soluble inorganic pyrophosphatases (PPa) are present in all living cells, but in plants and other Eukaryotes membrane-bound H+-pumping pyrophosphatases may compete with these soluble counterparts for the substrate. In Arabidopsis thaliana there are six genes encoding for classic family I PPa isoforms, five cytoplasmic, and one considered to be organellar. Here, six transgenic stable A...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968991/wsa206-a-paralog-of-duplicated-mpf2-like-mads-box-family-is-recruited-in-fertility-function-in-withania
#19
Muhammad Ramzan Khan, Humera Ihsan, Ghulam Muhammad Ali
Best known for their implication in calyx inflation, MPF2-like genes pertinent to the STMADS11 clade of the MADS-box family exert their functions in leaf development, flowering time, inflorescence architecture and floral reversion to just name but a few. However, our knowledge about their involvement in fertility function remained obscure. Therefore the major thrust of this study was to probe the recruitment of WSA206 (MPF2-like) protein in fertility function. The WSA206 functions were revealed by knocking down and overexpressing this protein in Withania somnifera...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27968990/an-abc-transporter-osabcg26-is-required-for-anther-cuticle-and-pollen-exine-formation-and-pollen-pistil-interactions-in-rice
#20
Zhenyi Chang, Zhufeng Chen, Wei Yan, Gang Xie, Jiawei Lu, Na Wang, Qiqing Lu, Nan Yao, Guangzhe Yang, Jixing Xia, Xiaoyan Tang
Wax, cutin and sporopollenin are essential components for the formation of the anther cuticle and the pollen exine, respectively. Their lipid precursors are synthesized by secretory tapetal cells and transported to the anther and microspore surface for deposition. However, the molecular mechanisms involved in the formation of the anther cuticle and pollen exine are poorly understood in rice. Here, we characterized a rice male sterile mutant osabcg26. Molecular cloning and sequence analysis revealed a point mutation in the gene encoding an ATP binding cassette transporter G26 (OsABCG26)...
December 2016: Plant Science: An International Journal of Experimental Plant Biology
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