Reduced expression of top1beta gene induces programmed cell death and alters ascorbate metabolism in Daucus carota cultured cells.

abstract：:ω-3 fatty acid desaturases (FADs) are thought to contribute to plant stress tolerance mainly through linolenic acid (C18:3)-induced membrane stabilization, but a comprehensive analysis of their roles in stress adaptation is lacking. Here, we isolated a microsomal ω-3 FAD gene (CbFAD3) from a cryophyte (Chorispora bung...

journal_title：Journal of experimental botany

authors： Shi Y,Yue X,An L

更新日期：2018-04-09 00:00:00

abstract：:Ethylene is a phytohormone involved in the regulation of several aspects of plant development and in responses to biotic and abiotic stress. The effects of exogenous application of ethylene to sugarcane plants are well characterized as growth inhibition of immature internodes and stimulation of sucrose accumulation. H...

journal_title：Journal of experimental botany

authors： Alessio VM,Cavaçana N,Dantas LLB,Lee N,Hotta CT,Imaizumi T,Menossi M

更新日期：2018-04-27 00:00:00

abstract：:Mutations affecting the Arabidopsis SWC6 gene encoding a putative orthologue of a component of the SWR1 chromatin remodelling complex in plants have been characterized. swc6 mutations cause early flowering, shortened inflorescence internodes, and altered leaf and flower development. These phenotypic defects resemble t...

journal_title：Journal of experimental botany

authors： Lázaro A,Gómez-Zambrano A,López-González L,Piñeiro M,Jarillo JA

更新日期：2008-01-01 00:00:00

abstract：:Bulbil formation in Agave tequilana was analysed with the objective of understanding this phenomenon at the molecular and cellular levels. Bulbils formed 14-45 d after induction and were associated with rearrangements in tissue structure and accelerated cell multiplication. Changes at the cellular level during bulbil ...

journal_title：Journal of experimental botany

authors： Abraham-Juárez MJ,Martínez-Hernández A,Leyva-González MA,Herrera-Estrella L,Simpson J

更新日期：2010-09-01 00:00:00

abstract：:Phytocystatins are inhibitors of cysteine proteinases from plants putatively involved in defence and as endogenous regulators of protein turnover. Seven genes encoding cystatins (HvCPI-1 to HvCPI-7), identified from EST collections and from an endosperm cDNA library, have been characterized. The intron-exon structure ...

journal_title：Journal of experimental botany

authors： Abraham Z,Martinez M,Carbonero P,Diaz I

更新日期：2006-01-01 00:00:00

abstract：:In Arabidopsis thaliana, XIPOTL1 encodes a phosphoethanolamine N-methyltransferase with a central role in phosphatidylcholine biosynthesis via the methylation pathway. To gain further insights into the mechanisms that regulate XIPOTL1 expression, the effect of upstream open reading frame 30 (uORF30) on the translation...

journal_title：Journal of experimental botany

authors： Alatorre-Cobos F,Cruz-Ramírez A,Hayden CA,Pérez-Torres CA,Chauvin AL,Ibarra-Laclette E,Alva-Cortés E,Jorgensen RA,Herrera-Estrella L

更新日期：2012-09-01 00:00:00

abstract：:Active gibberellin (GA(1)) is an important mediator of thermoperiodic growth in pea. Plants grown under lower day than night temperature (negative DIF) elongate less and have reduced levels of GA(1) compared with plants grown at higher day than night temperature (positive DIF). By comparing the wild type (WT) and the ...

journal_title：Journal of experimental botany

authors： Stavang JA,Pettersen RI,Wendell M,Solhaug KA,Junttila O,Moe R,Olsen JE

更新日期：2010-02-01 00:00:00

abstract：:The initiation of tomato fruit growth, fruit set, is very sensitive to environmental conditions. Therefore, an understanding of the mechanisms that regulate this process can facilitate the production of this agriculturally valuable fruit crop. Over the years, it has been well established that tomato fruit set depends ...

journal_title：Journal of experimental botany

authors： de Jong M,Mariani C,Vriezen WH

更新日期：2009-01-01 00:00:00

abstract：:Flowering is a critical period in the life cycle of flowering plant species, resulting in an irreversible commitment of significant resources. Wheat is photoperiod sensitive, flowering only when daylength surpasses a critical length; however, photoperiod insensitivity (PI) has been selected by plant breeders for >40 y...

journal_title：Journal of experimental botany

authors： Bentley AR,Horsnell R,Werner CP,Turner AS,Rose GA,Bedard C,Howell P,Wilhelm EP,Mackay IJ,Howells RM,Greenland A,Laurie DA,Gosman N

更新日期：2013-04-01 00:00:00

abstract：:Nutrient requirements for plant growth are expected to rise in response to the predicted changes in CO(2) and temperature. In this context, little attention has been paid to the effects of soil temperature, which limits plant growth at early stages in temperate regions. A factorial growth-room experiment was conducted...

journal_title：Journal of experimental botany

authors： Gavito ME,Curtis PS,Mikkelsen TN,Jakobsen I

更新日期：2001-09-01 00:00:00

abstract：:In the Arabidopsis mutant sdd1-1, a point mutation in a single gene (SDD1) causes specific alterations in stomatal density and distribution. In comparison to the wild type (C24), abaxial surfaces of sdd1-1 rosette leaves have about 2.5-fold higher stomatal densities. This mutant was used to study the consequence of st...

journal_title：Journal of experimental botany

authors： Schlüter U,Muschak M,Berger D,Altmann T

更新日期：2003-02-01 00:00:00

abstract：:Rice glutelin is synthesized as a precursor in the endosperm endoplasmic reticulum and then deposited within the protein storage vacuole protein body-II (PB-II) as an aggregate, with a high degree of polymerized higher-order structure comprising mature acidic and basic subunits after post-translation processing cleava...

journal_title：Journal of experimental botany

authors： Wakasa Y,Yang L,Hirose S,Takaiwa F

更新日期：2009-01-01 00:00:00

abstract：:Recent research is beginning to reveal how intricate networks of hormones and transcription factors coordinate the complex patterning of the gynoecium, the female reproductive structure of flowering plants. This review summarizes recent advances in understanding of how auxin biosynthesis, transport, and responses toge...

journal_title：Journal of experimental botany

authors： Larsson E,Franks RG,Sundberg E

更新日期：2013-06-01 00:00:00

abstract：:Extracellularly secreted peroxidases in cell suspension culture of tobacco (Nicotiana tabacum L. cv. Bright Yellow-2, cell line BY-2) catalyse the salicylic acid (SA)-dependent formation of active oxygen species (AOS) which, in turn, triggers an increase in cytosolic Ca2+ concentration. Addition of horseradish peroxid...

journal_title：Journal of experimental botany

authors： Kawano T,Muto S

更新日期：2000-04-01 00:00:00

abstract：:Soybean seeds provide an excellent source of protein for human and livestock nutrition. However, their nutritional quality is hampered by a low concentration of the essential sulfur amino acid, methionine (Met). In order to study factors that regulate Met synthesis in soybean seeds, this study used the Met-insensitive...

journal_title：Journal of experimental botany

authors： Song S,Hou W,Godo I,Wu C,Yu Y,Matityahu I,Hacham Y,Sun S,Han T,Amir R

更新日期：2013-04-01 00:00:00

abstract：:Potted grapevines of 140 Ruggeri (Vitis berlandieri × Vitis rupestris), a good Cl(-) excluder, and K 51-40 (Vitis champinii × Vitis riparia 'Gloire'), a poor Cl(-) excluder, and of a family obtained by crossing the two genotypes, were used to examine the inheritance of Cl(-) exclusion. Rooted leaves were then used to ...

journal_title：Journal of experimental botany

authors： Gong H,Blackmore D,Clingeleffer P,Sykes S,Jha D,Tester M,Walker R

更新日期：2011-01-01 00:00:00

abstract：:This study describes the variation in the mean relative shoot Ca content within the angiosperms at the ordinal level. Data were derived from studies in the literature in which the shoot Ca content of two or more species had been compared, and from a hydroponic experiment in which plants were selected to represent the ...

journal_title：Journal of experimental botany

authors： Broadley MR,Bowen HC,Cotterill HL,Hammond JP,Meacham MC,Mead A,White PJ

更新日期：2003-05-01 00:00:00

abstract：:The KNOTTED-like (KNOX) genes encode homeodomain transcription factors and regulate several processes of plant organ development. The peach (Prunus persica L. Batsch) genome was found to contain 10 KNOX members (KNOPE genes); six of them were experimentally located on the Prunus reference map and the class 1 KNOPE1 wa...

journal_title：Journal of experimental botany

authors： Testone G,Condello E,Verde I,Nicolodi C,Caboni E,Dettori MT,Vendramin E,Bruno L,Bitonti MB,Mele G,Giannino D

更新日期：2012-09-01 00:00:00

abstract：:Adoption of rice varieties that perform well under high iron-associated (HIA) stress environments can enhance rice production in West Africa. This study reports the genetic characterization of 323 rice accessions and breeding lines cultivated in West Africa using genotyping-by-sequencing and their phenotypic response ...

journal_title：Journal of experimental botany

authors： Diop B,Wang DR,Drame KN,Gracen V,Tongoona P,Dzidzienyo D,Nartey E,Greenberg AJ,Djiba S,Danquah EY,McCouch SR

更新日期：2020-07-06 00:00:00

abstract：:The molecular mechanisms of abscisic acid (ABA) signalling have been studied for many years; however, how mitochondria-localized proteins play roles in ABA signalling remains unclear. Here an Arabidopsis mitochondria-localized protein RRL (RETARDED ROOT GROWTH-LIKE) was shown to function in ABA signalling. A previous ...

journal_title：Journal of experimental botany

authors： Yao X,Li J,Liu J,Liu K

更新日期：2015-10-01 00:00:00

abstract：:Most rhizobial strains inhibit rice root growth in the presence of calcium or potassium nitrates, but not ammonium nitrate. Certain rhizobial strains, however, such as strain R4, do not inhibit rice growth and can enter rice roots and multiply in the intercellular spaces. By using the green fluorescent protein (GFP) a...

journal_title：Journal of experimental botany

authors： Perrine-Walker FM,Prayitno J,Rolfe BG,Weinman JJ,Hocart CH

更新日期：2007-01-01 00:00:00

abstract：:Many stresses are associated with increased accumulation of reactive oxygen species (ROS) and polyamines (PAs). PAs act as ROS scavengers, but export of putrescine and/or PAs to the apoplast and their catabolization by amine oxidases gives rise to H2O2 and other ROS, including hydroxyl radicals ((•)OH). PA catabolizat...

journal_title：Journal of experimental botany

authors： Pottosin I,Velarde-Buendía AM,Bose J,Zepeda-Jazo I,Shabala S,Dobrovinskaya O

更新日期：2014-03-01 00:00:00

abstract：:Brassinosteroids (BRs) are a group of steroid hormones regulating plant growth and development. Since BRs do not undergo transport among plant tissues, their metabolism is tightly regulated by transcription factors (TFs) and feedback loops. BAS1 (CYP734A1, formerly CYP72B1) and SOB7 (CYP72C1) are two BR-inactivating c...

journal_title：Journal of experimental botany

authors： Peng H,Neff MM

更新日期：2020-01-23 00:00:00

abstract：:During grain filling in barley (Hordeum vulgare L. cv. Barke) reserves are remobilized from vegetative organs. Glumes represent the vegetative tissues closest to grains, senesce late, and are involved in the conversion of assimilates. To analyse glume development and metabolism related to grain filling, parallel trans...

journal_title：Journal of experimental botany

authors： Kohl S,Hollmann J,Erban A,Kopka J,Riewe D,Weschke W,Weber H

更新日期：2015-03-01 00:00:00

abstract：:MicroRNAs (miRNAs) are small noncoding regulatory RNAs that play key roles in the process of plant development. To date, extensive studies of miRNAs have been performed in a few model plants, but few efforts have focused on small RNAs (sRNAs) in conifers because of the lack of reference sequences for their enormous ge...

journal_title：Journal of experimental botany

authors： Qiu Z,Li X,Zhao Y,Zhang M,Wan Y,Cao D,Lu S,Lin J

更新日期：2015-06-01 00:00:00

abstract：:The phloem is a well-known target of sucking and piercing insects that utilize the transported fluid as their major nutrient source. In addition to small molecules like sugars and amino acids, phloem sap of higher land plants contains proteins that can accumulate up to high concentrations. Although the knowledge about...

journal_title：Journal of experimental botany

authors： Kehr J

更新日期：2006-01-01 00:00:00

abstract：:The production of bioenergy from grasses has been developing quickly during the last decade, with Miscanthus being among the most important choices for production of bioethanol. However, one of the key barriers to producing bioethanol is the lack of information about cell wall structure. Cell walls are thought to disp...

journal_title：Journal of experimental botany

authors： De Souza AP,Alvim Kamei CL,Torres AF,Pattathil S,Hahn MG,Trindade LM,Buckeridge MS

更新日期：2015-07-01 00:00:00

abstract：:The nucleus contains the cell's genetic material, which directs cellular activity via gene regulation. The physical barrier of the nuclear envelope needs to be permeable to a variety of macromolecules and signals. The most prominent gateways for the transport of macromolecules are the nuclear pore complexes (NPCs). Th...

journal_title：Journal of experimental botany

authors： Tamura K,Hara-Nishimura I

更新日期：2013-02-01 00:00:00

abstract：:In peach trees (Prunus persica L. Batsch cv. Redhaven), sorbitol is a primary photosynthetic product and may play an important role in the budbreak process. Surprisingly, before budbreak (from January to early March), the concentration of sorbitol in the xylem sap decreases, while that of hexoses (glucose and fructose...

journal_title：Journal of experimental botany

authors： Maurel K,Sakr S,Gerbe F,Guilliot A,Bonhomme M,Rageau R,Pétel G

更新日期：2004-04-01 00:00:00

abstract：:Although plants possess an arsenal of constitutive defences such as structural barriers and preformed antimicrobial defences, many attackers are able to overcome the pre-existing defence layers. In response, a range of inducible plant defences is set up to battle these pathogens. These mechanisms, commonly integrated ...

journal_title：Journal of experimental botany

authors： Balmer D,Planchamp C,Mauch-Mani B

更新日期：2013-03-01 00:00:00