biosynthesis, perception, signal transduction and action
... Oxygenation of a-LeA is the initial step in JA biosynthesis. The oxygen has to be inserted in the C-13 position by a lipoxygenase (LOX) (Fig. 1). Among the six LOXs of Arabidopsis, four of them are 13-LOXs (LOX2, LOX3, LOX4, LOX6) (Bannenberg et al., 2009), although their functions are only partly u ...
... Oxygenation of a-LeA is the initial step in JA biosynthesis. The oxygen has to be inserted in the C-13 position by a lipoxygenase (LOX) (Fig. 1). Among the six LOXs of Arabidopsis, four of them are 13-LOXs (LOX2, LOX3, LOX4, LOX6) (Bannenberg et al., 2009), although their functions are only partly u ...
The regulation of the juvenile phase in the perennial Arabis alpina
... (juvenile or incompetent) and 8 weeks (adult or competent) in LDs identified several members of the gene family encoding miR156-regulated SQUAMOSA PROMOTER BINDING PROTEIN LIKE (SPL) transcription factors to be higher expressed in adult apices. The miR156-SPL pathway is evolutionarily conserved in l ...
... (juvenile or incompetent) and 8 weeks (adult or competent) in LDs identified several members of the gene family encoding miR156-regulated SQUAMOSA PROMOTER BINDING PROTEIN LIKE (SPL) transcription factors to be higher expressed in adult apices. The miR156-SPL pathway is evolutionarily conserved in l ...
View - OhioLINK Electronic Theses and Dissertations Center
... of English ivy (Hedera helix L. cv. Goldheart) plants, were hybridized on Arabidopsis thaliana cDNA microarrays, using cross-species hybridization (CSH). Among 11,255 cDNA probes excluding ‘BLANK’ and ‘bad’ spots, 2,597 features produced signals that were greater than background levels, which consti ...
... of English ivy (Hedera helix L. cv. Goldheart) plants, were hybridized on Arabidopsis thaliana cDNA microarrays, using cross-species hybridization (CSH). Among 11,255 cDNA probes excluding ‘BLANK’ and ‘bad’ spots, 2,597 features produced signals that were greater than background levels, which consti ...
Replace, reuse, recycle: improving the sustainable use of
... motif (GNATATNC) in the promoter region of Pi-stressresponsive genes (Rubio et al., 2001). PHR1 is localized in the nucleus, and a SUMO E3 ligase (SIZ1) is known to control Pi homeostasis at the post-translational level through sumoylation of PHR1 (Miura et al., 2005). PHR1 is involved in the activa ...
... motif (GNATATNC) in the promoter region of Pi-stressresponsive genes (Rubio et al., 2001). PHR1 is localized in the nucleus, and a SUMO E3 ligase (SIZ1) is known to control Pi homeostasis at the post-translational level through sumoylation of PHR1 (Miura et al., 2005). PHR1 is involved in the activa ...
Target of Rapamycin Signaling Regulates Metabolism, Growth, and
... embryo lethality (Menand et al., 2002). Although the roles of TOR in postembryonic plant growth and life span are largely undetermined, experimental findings suggest TOR involvement in the regulatory program that coordinates cell wall components with cell elongation as well as growth and development ...
... embryo lethality (Menand et al., 2002). Although the roles of TOR in postembryonic plant growth and life span are largely undetermined, experimental findings suggest TOR involvement in the regulatory program that coordinates cell wall components with cell elongation as well as growth and development ...
The genesis of new proteins and new
... The emergence of new proteins with novel functions is at the root of adaptive evolutionary innovation. Understanding how proteins are made and how new proteins evolve is of fundamental importance. Increasingly, it is clear that de novo protein evolution is frequent and important. The cyclic peptide ...
... The emergence of new proteins with novel functions is at the root of adaptive evolutionary innovation. Understanding how proteins are made and how new proteins evolve is of fundamental importance. Increasingly, it is clear that de novo protein evolution is frequent and important. The cyclic peptide ...
Organellar gene expression - Humboldt
... address the question whether RpoT transcript accumulation is regulated differentially during plant development transcript abundance was measured during leaf development. Additionally, effects of the plants circadian rhythm on RpoT transcript accumulation were analyzed. Transcripts of all three RpoT ...
... address the question whether RpoT transcript accumulation is regulated differentially during plant development transcript abundance was measured during leaf development. Additionally, effects of the plants circadian rhythm on RpoT transcript accumulation were analyzed. Transcripts of all three RpoT ...
Biological function of RNA interference (RNAi) pathways in the moss
... as highly specialized precursors that feed into an RdRP-dependent siRNA biogenesis pathway. They are targets for cleavage by miRNA-guided mechanisms and yield siRNAs that are in a 21-nt register with the cleavage site (Allen et al., 2005; Rajagopalan et al., 2006; Chapman and Carrington, 2007). Arab ...
... as highly specialized precursors that feed into an RdRP-dependent siRNA biogenesis pathway. They are targets for cleavage by miRNA-guided mechanisms and yield siRNAs that are in a 21-nt register with the cleavage site (Allen et al., 2005; Rajagopalan et al., 2006; Chapman and Carrington, 2007). Arab ...
Functional analysis of the role of chloroplasts in senescence
... plant development. Therefore, senescence as a process of plant development is also integrated with chloroplast function. The chloroplast is the organelle where photosynthesis and biosynthesis of many important metabolites takes place. Arabidopsis thaliana is a suitable model plant to study senescenc ...
... plant development. Therefore, senescence as a process of plant development is also integrated with chloroplast function. The chloroplast is the organelle where photosynthesis and biosynthesis of many important metabolites takes place. Arabidopsis thaliana is a suitable model plant to study senescenc ...
New Insights into the Regulation of Stomatal Movements by Red
... et al., 2011). Large differences in CO2 concentration and light intensity within plant communities may therefore affect the development of stomata. The number of newly developed stomata is greater at relatively lower [CO2] while at relatively higher [CO2] less stomata is formed. A higher light inten ...
... et al., 2011). Large differences in CO2 concentration and light intensity within plant communities may therefore affect the development of stomata. The number of newly developed stomata is greater at relatively lower [CO2] while at relatively higher [CO2] less stomata is formed. A higher light inten ...
Brassinosteroid biosynthesis and signalling in Arabidopsis thaliana
... RESISTANT 1 (BZR1, He et al., 2002; Yin et al., 2002). Peng et al. (2010) recently showed that BIN2 interacts directly with BZR1 via a 12 amino acid BIN2-docking motif (DM) adjacent to the C-terminus of BZR1. A treatment with the proteasome inhibitor MG132 increased the accumulation of phosphorylate ...
... RESISTANT 1 (BZR1, He et al., 2002; Yin et al., 2002). Peng et al. (2010) recently showed that BIN2 interacts directly with BZR1 via a 12 amino acid BIN2-docking motif (DM) adjacent to the C-terminus of BZR1. A treatment with the proteasome inhibitor MG132 increased the accumulation of phosphorylate ...
Arabidopsis AtPRX34 Submitted in partial fulfilment of the requirements of the degree
... end, plant defence studies have been conducted on model organisms like Arabidopsis thaliana. These studies identified an ongoing evolutionary arms race between plants and pathogens. Certain plants can produce an effective defence response to protect themself against invaders with either preformed or ...
... end, plant defence studies have been conducted on model organisms like Arabidopsis thaliana. These studies identified an ongoing evolutionary arms race between plants and pathogens. Certain plants can produce an effective defence response to protect themself against invaders with either preformed or ...
Regulation of secondary compounds synthesis by photosynthetic
... 1.3 Influence of light on growth and reorientation of the carbon metabolism ............................... 26 1.4 Reorientation of the carbon metabolism by biotic factors: the case of arbuscular mycorrhizal............................................................................................. ...
... 1.3 Influence of light on growth and reorientation of the carbon metabolism ............................... 26 1.4 Reorientation of the carbon metabolism by biotic factors: the case of arbuscular mycorrhizal............................................................................................. ...
Plant MYB Transcription Factors: Their Role in Drought
... Two Arabidopsis genes, AtMYB60 and AtMYB96, which are well characterized for their role in stomatal movements (see Section 2.3), are also involved in the regulation of lateral root growth. AtMYB60 expression in roots was induced by auxin, and Arabidopsis plants overexpressing this gene, grown on MS ...
... Two Arabidopsis genes, AtMYB60 and AtMYB96, which are well characterized for their role in stomatal movements (see Section 2.3), are also involved in the regulation of lateral root growth. AtMYB60 expression in roots was induced by auxin, and Arabidopsis plants overexpressing this gene, grown on MS ...
Control of flowering time in temperate cereals: genes, domestication
... allow cereal crops to flower late in the year and thus exploit an extended vegetative period for resource storage. Conversely, early flowering has evolved as an adaptation to short growing seasons. Knowingly, or unknowingly, farmers throughout history and, latterly, plant breeders have selected diff ...
... allow cereal crops to flower late in the year and thus exploit an extended vegetative period for resource storage. Conversely, early flowering has evolved as an adaptation to short growing seasons. Knowingly, or unknowingly, farmers throughout history and, latterly, plant breeders have selected diff ...
The Enigmatic LEA Proteins and Other
... Colmenero-Flores et al., 1997; Cuming, 1999). This classification has been very useful because it not only allows the identification of different families, but it is also possible to distinguish motifs conserved across species, which are unique to each family. Based on these characteristics and cons ...
... Colmenero-Flores et al., 1997; Cuming, 1999). This classification has been very useful because it not only allows the identification of different families, but it is also possible to distinguish motifs conserved across species, which are unique to each family. Based on these characteristics and cons ...
Plastid biogenesis, between light and shadows
... a photosynthetic prokaryote was engulfed by the eukaryotic ancestor of green and red algae and land plants. Plastids have diversified in plants from their original function as chloroplasts to fulfil a variety of other roles in metabolite biosynthesis and in storage, or purely to facilitate their own t ...
... a photosynthetic prokaryote was engulfed by the eukaryotic ancestor of green and red algae and land plants. Plastids have diversified in plants from their original function as chloroplasts to fulfil a variety of other roles in metabolite biosynthesis and in storage, or purely to facilitate their own t ...
Impact of light limitation on seagrasses
... Fig. 1. Conceptual model of light reduction and impact on seagrass with the following as the legend — (A) Growth of seagrasses is strongly influenced by the optical quality of the water, including suspended sediments, dissolved organic matter and phytoplankton, which vary strongly according to run-o ...
... Fig. 1. Conceptual model of light reduction and impact on seagrass with the following as the legend — (A) Growth of seagrasses is strongly influenced by the optical quality of the water, including suspended sediments, dissolved organic matter and phytoplankton, which vary strongly according to run-o ...
genetic regulation of cuticle assembly in fleshy fruit
... 4654 | Hen-Avivi et al. cuticle structures can be found throughout the plant kingdom, which can be attributed to differences in monomer composition of the cutin and waxes as well as the inclusion of a number of secondary metabolites. All the cuticle components and building blocks are produced and s ...
... 4654 | Hen-Avivi et al. cuticle structures can be found throughout the plant kingdom, which can be attributed to differences in monomer composition of the cutin and waxes as well as the inclusion of a number of secondary metabolites. All the cuticle components and building blocks are produced and s ...
MAKING SURE HUNGRY PLANTS GET FED: THE DUAL-TARGETED PURPLE ACID PHOSPHATASE
... the volume of soil explored and the surface area for Pi absorption (Vance et al., 2003). Some species form highly clustered lateral roots, or proteoid roots, that drastically increase root surface area (Grennan, 2008). It appears that most changes in RSA are mediated primarily by auxin signalling wi ...
... the volume of soil explored and the surface area for Pi absorption (Vance et al., 2003). Some species form highly clustered lateral roots, or proteoid roots, that drastically increase root surface area (Grennan, 2008). It appears that most changes in RSA are mediated primarily by auxin signalling wi ...
12284_2008_9017_MOESM6_ESM
... genes (Nicolet & Craig, 1989). The STI proteins are also referred to as Hop (hsp70- and hsp90-organizing protein) based on their functions as adapter or cochaperone proteins that can bind to both hsp90 and hsp70 simultaneously, bringing them into close proximity (Chen & Smith, 1998). The Arabidopsis ...
... genes (Nicolet & Craig, 1989). The STI proteins are also referred to as Hop (hsp70- and hsp90-organizing protein) based on their functions as adapter or cochaperone proteins that can bind to both hsp90 and hsp70 simultaneously, bringing them into close proximity (Chen & Smith, 1998). The Arabidopsis ...
Chapter 1 Literature Review Overview of plant defence response mechanisms
... to achieve a satisfactory, but environmentally friendly control of plant diseases. Although the extensive use of pesticides and fungicides remains the main strategy of disease control, conventional breeding approaches have been very successful in introducing resistance (R) genes from wild population ...
... to achieve a satisfactory, but environmentally friendly control of plant diseases. Although the extensive use of pesticides and fungicides remains the main strategy of disease control, conventional breeding approaches have been very successful in introducing resistance (R) genes from wild population ...
Regulatory Mechanisms Of Pathogen-Mediated Cellular
... biosynthesis which is paramount to local and systemic acquired resistance in addition to pathogenesis-related (PR) protein accumulation. Recently, NPR1, NPR3 and NPR4 were identified as SA binding proteins and signal transducers; however, conflicting results have been obtained concerning the nature ...
... biosynthesis which is paramount to local and systemic acquired resistance in addition to pathogenesis-related (PR) protein accumulation. Recently, NPR1, NPR3 and NPR4 were identified as SA binding proteins and signal transducers; however, conflicting results have been obtained concerning the nature ...
The correct answer is b
... The correct answer is b— D. Answer d is incorrect. Phototropism is a growth response and photomorphogenesis is a germination response. Photomorphogenesis is not a directional response to light. 3. If you were to plant a de-etiolated (det2) mutant Arabidopsis seed and keep it in a dark box, what wou ...
... The correct answer is b— D. Answer d is incorrect. Phototropism is a growth response and photomorphogenesis is a germination response. Photomorphogenesis is not a directional response to light. 3. If you were to plant a de-etiolated (det2) mutant Arabidopsis seed and keep it in a dark box, what wou ...