Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 368 for “"C4"”.
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Stomatal regulation in C4 photosynthesis
The productivity of crops is largely determined by how efficiently they convert carbon dioxide (CO<sub>2</sub>) into organic molecules through the process of photosynthesis. The exchange of gases between the atmosphere and the leaf intercellular spaces is facilitated by stomata, tiny pores found on …
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Understanding C4 Photosynthesis Through Quantitative Genetics
… of carbon concentrating mechanisms such as C4 photosynthesis. While being present in just 3% of global flora, the C4 cycle is responsible for around a quarter of primary productivity. This increased efficiency if engineered into C3 species such as rice would dramatically enhance yield. This …
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The role of small RNAs in C4 photosynthesis
The C4 cycle represents a series of biochemical and anatomical modifications that are targeted to overcome the effects of photorespiration caused by the oxygenase capability of Ribulose Bisphosphate Carboxylase/Oxygenase (RuBisCO). The cycle has evolved independently in over 60 lineages, which …
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Metabolomic profiling of C4 grass responses to environmental stress
Made available in DSpace on 2020-08-26T23:51:25Z (GMT). No. of bitstreams: 4 WEDOW-DISSERTATION-2020.pdf: 2254191 bytes, checksum: 70fd380d7e3af29dde4932af185c7e5f (MD5) Supplemental Files.zip: 267027 bytes, checksum: e8fd73338d6bf5cbd1d0c0b0a9f857f6 (MD5) LICENSE.txt: 4210 bytes, checksum: …
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Energetics of maize C4 physiology under light limiting conditions
C4 plants have a biochemical carbon concentrating mechanism (CCM) that increases CO2 concentration around Rubisco in the bundle sheath (BS). Maize CCM has two CO2 delivery pathways to the Bundle Sheath (BS) (respectively via malate, MAL or aspartate, ASP); rates of PGA reduction, carbohydrate …
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Investigations into the vaccinia virus immunomodulatory proteins C4 and C16
… This study focusses on two of these: C16 and C4, that share 43.7 % amino acid identity. Given the sequence similarity, we explored whether C16 and C4 have any shared functions, whilst also searching for novel functions. To gain mechanistic insight, we sought to identify binding partners and …
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Plastid to Nucleus Signalling and the Evolution of C4 Photosynthesis
… core photosynthetic genes, in both C3 and C4 species. However, the regulatory mechanisms of this signalling are not well understood. C4 photosynthesis has evolved from the ancestral C3 state in over sixty lineages of plants. Although commonly described as the most remarkable example of …
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Características hidráulicas e fotossintéticas em espécies C3 e C4 proximamente relacionadas
As plantas C4 são conhecidas por manter uma alta eficiência fotossintética e maior eficiência do uso da água em relação às espécies C3. No entanto, pouco se sabe sobre as diferenças nas relações hídricas entre os tipos fotossintéticos, principalmente em espécies pertencentes a grupos de transição …
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Engineering a Reverse C4 Photosynthetic Pathway in C3 species Arabidopsis thaliana
C4 photosynthesis is a specialised carbon concentrating mechanism that achieves higher rates of photosynthesis. Engineering C4 photosynthesis into C3 plants could improve agronomic features of staple C3 crops. Introducing the biochemistry of C4 photosynthesis is considered a key step in engineering …
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Developmental and Expression Evolution in C3 and C4 Atriplex and their Hybrids
… are reduced 30-50% by photorespiration. The C4 photosynthetic pathway incorporates biochemical and structural features to minimize photorespiration by concentrating CO2 around Rubisco. Engineering C4 into C3 crops requires an understanding of the molecular and genetic control of C4 …
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Sodium as an essential element for C4 plants / by Peter Ferguson Brownell.
Includes bibliographical references.
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A comparative analysis of C3 and C4 photosynthesis under dynamic light conditions
… despite the undeniable global importance of C4 crops to global food supplies. The benefits of the C4 carbon concentrating mechanism under steady state conditions are well-established, but it is less clear how the C4 pathway affects the dynamic light response. This thesis employs a comparison …
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High throughput phenotyping and quantitative genetics of leaf functional traits in C4 grasses
The challenge of meeting the global demand for food and fuel is exacerbated by the need to increase plant productivity to maintain aboveground biomass and crop yield in suboptimal and resource limited environments. Improving crop productivity without increased resource use requires greater in whole …
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Can phytoliths from Sorghum bicolor, a C4 plant, be indicators of past water availability?
… has not been a study focusing on phytoliths in C4 plants such as sorghum. This study will determine whether or not the C4 plant sorghum can indicate past water availability. Sorghum grown from three different sites in Jordan, Deir ‘Alla, Ramtha and Salt which has been grown over a period of two …
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Improving C4 photosynthetic chilling tolerance in bioenergy crops: the search for elite breeding materials
… of fuels. Due to their high productivity, C4 bioenergy feedstocks are among the top candidates for cultivation for biomass production, and crops such as sugarcane/energycane (Saccharum spp.), maize (Zea mays) , miscanthus (Miscanthus spp.), sorghum (Sorghum bicolor), and switchgrass …
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