22.5 Plant Hormones and Responses TEKS 10B
... 22.5 Plant Hormones and Responses ! Plant hormones regulate plant functions. • Hormones are chemical messengers. – produced in one part of an organism – stimulates or suppresses activity in another part ...
... 22.5 Plant Hormones and Responses ! Plant hormones regulate plant functions. • Hormones are chemical messengers. – produced in one part of an organism – stimulates or suppresses activity in another part ...
B3 - miss-lovell
... the apical bud is removed the dormant lateral buds grow causing the plant to branch outwards. 7. This response occurs to plants in the absence of light. The plant grows a long weak stem, with the distance between internodes increased. Fewer, smaller leaves that are pale yellow. The advantage is that ...
... the apical bud is removed the dormant lateral buds grow causing the plant to branch outwards. 7. This response occurs to plants in the absence of light. The plant grows a long weak stem, with the distance between internodes increased. Fewer, smaller leaves that are pale yellow. The advantage is that ...
Light signals and flowering
... incompletely understood but are likely to be linked either directly or indirectly to patterns of assimilate partitioning and resource utilization within the plant. ...
... incompletely understood but are likely to be linked either directly or indirectly to patterns of assimilate partitioning and resource utilization within the plant. ...
Phosphate and zinc transport and signalling in plants
... Inorganic phosphate (Pi) and zinc (Zn) are two essential nutrients for plant growth. In soils, these two minerals are either present in low amounts or are poorly available to plants. Consequently, worldwide agriculture has become dependent on external sources of Pi and Zn fertilizers to increase cro ...
... Inorganic phosphate (Pi) and zinc (Zn) are two essential nutrients for plant growth. In soils, these two minerals are either present in low amounts or are poorly available to plants. Consequently, worldwide agriculture has become dependent on external sources of Pi and Zn fertilizers to increase cro ...
The Root Hair Specific SYP123 Regulates the Localization of Cell
... SYP122, SYP123, SYP124, SYP125, SYP131, and SYP132) are localized at the plasma membrane (Uemura et al., 2004). Interestingly, SYP123 is exclusively expressed in trichoblasts, specialized epidermal root cells that, at the basal end, produce tubular-shaped root hairs (Enami et al., 2009). In these ce ...
... SYP122, SYP123, SYP124, SYP125, SYP131, and SYP132) are localized at the plasma membrane (Uemura et al., 2004). Interestingly, SYP123 is exclusively expressed in trichoblasts, specialized epidermal root cells that, at the basal end, produce tubular-shaped root hairs (Enami et al., 2009). In these ce ...
Altered sucrose synthase and invertase
... development and offspring production In order to study the role of INV and SUS in nematode development and offspring production, infection tests were performed on single and double mutants. T-DNA insertion lines of all six SUS genes and of the A/N-INV genes CINV1 and CINV2 that were studied most int ...
... development and offspring production In order to study the role of INV and SUS in nematode development and offspring production, infection tests were performed on single and double mutants. T-DNA insertion lines of all six SUS genes and of the A/N-INV genes CINV1 and CINV2 that were studied most int ...
Darkness and gulliver2phyB mutation decrease
... BR biosynthetic inhibitor, brassinazole (Brz), and light. We isolated two alleles: gul2-1 and gul2-2. The gul2-1 mutant was in the Wassilewskija-2 (Ws-2) background and was mutagenized by ethyl methanesulfonate (EMS), whereas gul2-2 was obtained from a T-DNA activation-tagged mutant population in th ...
... BR biosynthetic inhibitor, brassinazole (Brz), and light. We isolated two alleles: gul2-1 and gul2-2. The gul2-1 mutant was in the Wassilewskija-2 (Ws-2) background and was mutagenized by ethyl methanesulfonate (EMS), whereas gul2-2 was obtained from a T-DNA activation-tagged mutant population in th ...
Information processing without brains – the power of
... bud activation was cytokinin, which had been shown to be an activator of bud outgrowth (Sachs and Thimann, 1967). A tight link between cytokinin and auxin has been characterized on the molecular scale, as auxin generally represses cytokinin signaling by rapidly downregulating cytokinin biosynthesis ...
... bud activation was cytokinin, which had been shown to be an activator of bud outgrowth (Sachs and Thimann, 1967). A tight link between cytokinin and auxin has been characterized on the molecular scale, as auxin generally represses cytokinin signaling by rapidly downregulating cytokinin biosynthesis ...
Plant Hormones and Responses
... • Gibberellins are plant hormones that produce dramatic increases in size. – ending seed dormancy – rapid growth of young seedlings – rapid growth of some flower stalks ...
... • Gibberellins are plant hormones that produce dramatic increases in size. – ending seed dormancy – rapid growth of young seedlings – rapid growth of some flower stalks ...
Introduction - Beck-Shop
... sequencing) and their manipulation, i.e. modification and introduction of selected genes into cells at will. Gene expression, their ‘switching on and off ’, can also be manipulated. This is a branch of science that is enabling biologists to identify and study the roles of specific genes in specified ...
... sequencing) and their manipulation, i.e. modification and introduction of selected genes into cells at will. Gene expression, their ‘switching on and off ’, can also be manipulated. This is a branch of science that is enabling biologists to identify and study the roles of specific genes in specified ...
Interactions Between Root and Shoot Competition and Plant Traits
... Abstract. A plant’s performance depends on its ability to deal with numerous, simultaneous ecological challenges. In both natural and production systems, dominant challenges include competition for soil resources and light, herbivory, and general abiotic stress. A central goal of research is to unde ...
... Abstract. A plant’s performance depends on its ability to deal with numerous, simultaneous ecological challenges. In both natural and production systems, dominant challenges include competition for soil resources and light, herbivory, and general abiotic stress. A central goal of research is to unde ...
PDF - Oxford Academic - Oxford University Press
... therefore lacking typical grana. A relationship between plastid integrity and leaf development can be inferred from the larger, sparsely packed cells observed in the palisade mesophyll of the anu10-1 mutant. ...
... therefore lacking typical grana. A relationship between plastid integrity and leaf development can be inferred from the larger, sparsely packed cells observed in the palisade mesophyll of the anu10-1 mutant. ...
Mechanisms and genes controlling the signalling network Arabidopsis thaliana
... thus increasing the total number of AtGPX gene family to eight (AtGPX1-AtGPX8). Arabidopsis thaliana transgenic lines with reduced expression of both putative chloroplastic isoforms (AtGPX1 and AtGPX7) and AtGPX7 knock-out mutant (ko-GPX7) were more sensitive to photo-oxidative stress but had a redu ...
... thus increasing the total number of AtGPX gene family to eight (AtGPX1-AtGPX8). Arabidopsis thaliana transgenic lines with reduced expression of both putative chloroplastic isoforms (AtGPX1 and AtGPX7) and AtGPX7 knock-out mutant (ko-GPX7) were more sensitive to photo-oxidative stress but had a redu ...
Full-Text PDF
... Transcription factors (TFs) are key components underlying mechanisms that control gene expression in all living organisms. They define phenotypic diversity and evolutionary adaptation of organisms [1,2]. TFs typically consist of at least two major domains. The first is a DNA-binding domain (BD) that ...
... Transcription factors (TFs) are key components underlying mechanisms that control gene expression in all living organisms. They define phenotypic diversity and evolutionary adaptation of organisms [1,2]. TFs typically consist of at least two major domains. The first is a DNA-binding domain (BD) that ...
Arabidopsis Actin-Depolymerizing Factor AtADF4 Mediates Defense
... several isovariants of Arabidopsis (Arabidopsis thaliana) ADFs in barley epidermal cells was shown to compromise penetration resistance to powdery mildew fungi (Miklis et al., 2007). The Arabidopsis-Pseudomonas syringae interaction provides an ideal model plant-pathogen system to study plant defense ...
... several isovariants of Arabidopsis (Arabidopsis thaliana) ADFs in barley epidermal cells was shown to compromise penetration resistance to powdery mildew fungi (Miklis et al., 2007). The Arabidopsis-Pseudomonas syringae interaction provides an ideal model plant-pathogen system to study plant defense ...
Tan and Swain - Citrus Research and Education Center
... Progress made in understanding the flowering process in model plant systems has given us an insight into the molecular events surrounding the transition from the vegetative to reproductive phase in angiosperms (e.g. Bernier and Perilleux 2005). This has confirmed a long-held hypothesis, first sugges ...
... Progress made in understanding the flowering process in model plant systems has given us an insight into the molecular events surrounding the transition from the vegetative to reproductive phase in angiosperms (e.g. Bernier and Perilleux 2005). This has confirmed a long-held hypothesis, first sugges ...
Meeting Program - American Society of Plant Biologists
... Heese, Antje, University of Missouri, Columbia, MO The plasma membrane (PM) serves as a crucial contact point between a host and potential pathogens. Plant proteins at this location are required for many aspects of plant defense, from initial microbe perception to pathogen growth restriction. A comp ...
... Heese, Antje, University of Missouri, Columbia, MO The plasma membrane (PM) serves as a crucial contact point between a host and potential pathogens. Plant proteins at this location are required for many aspects of plant defense, from initial microbe perception to pathogen growth restriction. A comp ...
Hormone Signaling Pathways in Plants: The Role of
... of the gene may result in no obvious or only subtle phenotypic changes that cannot be identified in screens for mutant phenotypes but may be detected by expression pattern in enhancer-trap or gene-trap screens (Sundaresan et al., 1995; McCourt, 1999). In most traditional screens, since seeds and see ...
... of the gene may result in no obvious or only subtle phenotypic changes that cannot be identified in screens for mutant phenotypes but may be detected by expression pattern in enhancer-trap or gene-trap screens (Sundaresan et al., 1995; McCourt, 1999). In most traditional screens, since seeds and see ...
The control of developmental phase transitions in plants
... bear ‘juvenile’ leaves (Chien and Sussex, 1996; Telfer et al., 1997). The importance of different regulatory systems can thus be revealed in specific mutants. For example, Arabidopsis mutants that are insensitive to the phytohormone gibberellin (GA) or those defective in its biosynthesis show a dela ...
... bear ‘juvenile’ leaves (Chien and Sussex, 1996; Telfer et al., 1997). The importance of different regulatory systems can thus be revealed in specific mutants. For example, Arabidopsis mutants that are insensitive to the phytohormone gibberellin (GA) or those defective in its biosynthesis show a dela ...
New Horizons in Plant Sciences
... main changes that differentiate corn from teosinte; these genes have a huge effect on plant growth, as well as on fruit and seed formation. This research has advanced understanding not just of corn, but of how new physical characteristics evolve in other plant species. Armed with advanced molecular ...
... main changes that differentiate corn from teosinte; these genes have a huge effect on plant growth, as well as on fruit and seed formation. This research has advanced understanding not just of corn, but of how new physical characteristics evolve in other plant species. Armed with advanced molecular ...
The Arabidopsis Xylem Peptidase XCP1 Is a
... For direct evidence of XCP1 localization, leaves, flowers, and roots of Arabidopsis seedlings were prepared for detection of XCP1 by immunofluorescence. Observation of fluorescence in wild-type Arabidopsis organs confirmed the localization of XCP1 to TEs as observed for XCP1-GUS plants (Fig. 2, A an ...
... For direct evidence of XCP1 localization, leaves, flowers, and roots of Arabidopsis seedlings were prepared for detection of XCP1 by immunofluorescence. Observation of fluorescence in wild-type Arabidopsis organs confirmed the localization of XCP1 to TEs as observed for XCP1-GUS plants (Fig. 2, A an ...
The Basis of Natural and Artificial Postzygotic Hybridization Barriers
... been found that in allopolyploids the hybridization event is accompanied by changes in gene expression patterns, chromatin structure, and DNA methylation as well as sequence elimination (Henikoff and Matzke, 1997; Leitch and Bennett, 1997; Henikoff and Comai, 1998; Rieseberg and Noyes, 1998; Comai e ...
... been found that in allopolyploids the hybridization event is accompanied by changes in gene expression patterns, chromatin structure, and DNA methylation as well as sequence elimination (Henikoff and Matzke, 1997; Leitch and Bennett, 1997; Henikoff and Comai, 1998; Rieseberg and Noyes, 1998; Comai e ...
Arabidopsis DND2 , a Second Cyclic Nucleotide
... * The e-Xtra logo stands for “electronic extra” and indicates that Figure 7 appears in color on-line. ...
... * The e-Xtra logo stands for “electronic extra” and indicates that Figure 7 appears in color on-line. ...
Mitochondrial type-I prohibitins of Arabidopsis thaliana are required
... (Zimmermann et al., 2004). The highest AtPHB transcript levels were found particularly in proliferative tissues, such as the shoot apex, the root tip, young leaves and cell suspensions (Figure 2a). Tissue-specific expression was further explored by GUS histochemical staining on transgenic plants con ...
... (Zimmermann et al., 2004). The highest AtPHB transcript levels were found particularly in proliferative tissues, such as the shoot apex, the root tip, young leaves and cell suspensions (Figure 2a). Tissue-specific expression was further explored by GUS histochemical staining on transgenic plants con ...
Gravitropism in Leaves of Arabidopsis thaliana (L.) Heynh.
... Arabidopsis thaliana (L.) Heynh. (Arabidopsis, hereafter) have supplied vast knowledge on the mechanisms of gravitropism in stems and roots from mutational analyses (Okada and Shimura 1992, reviewed by Fukaki et al. 1996a, Tasaka et al. 1999, Terao-Morita and Tasaka 2004). The graviresponse is not a ...
... Arabidopsis thaliana (L.) Heynh. (Arabidopsis, hereafter) have supplied vast knowledge on the mechanisms of gravitropism in stems and roots from mutational analyses (Okada and Shimura 1992, reviewed by Fukaki et al. 1996a, Tasaka et al. 1999, Terao-Morita and Tasaka 2004). The graviresponse is not a ...
Arabidopsis thaliana
Arabidopsis thaliana (/ərˌæbɨˈdɒpsɪsˌθɑːliˈɑːnə/ thale cress, mouse-ear cress or arabidopsis) is a small flowering plant native to Eurasia. A. thaliana is edible by humans and, as with other mustard greens, is used in salads or sautéed, like many species in the Brassicacea. Considered a weed, it is found by roadsides and in disturbed lands. A winter annual with a relatively short life cycle, Arabidopsis is a popular model organism in plant biology and genetics. For a complex multicellular eukaryote, Arabidopsis thaliana has a relatively small genome of approximately 135 megabase pairs (Mbp). It was long thought to have the smallest genome of all flowering plants, but the smallest flowering plants' genomes are now considered to belong to plants in the genus Genlisea, order Lamiales, with Genlisea tuberosa, a carnivorous plant, showing a genome size of approximately 61 Mbp. Arabidopsis thaliana was the first plant to have its genome sequenced, and is a popular tool for understanding the molecular biology of many plant traits, including flower development and light sensing.