The mechanism of phloem loading in rice

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Splet24. feb. 2024 · Phloem loading is the first step in sucrose transport from source leaves to sink organs. The phloem loading strategy in rice remains unclear. To determine the … SpletThree phloem loading strategies have been identified, two active mechanisms, apoplastic loading via sucrose transporters and symplastic polymer trapping, and one passive …

The mechanism of phloem loading in rice (Oryza sativa) - Wikidata

SpletBackground and aims: Although Oryza sativa (rice) is one of the most important cereal crops, the mechanism by which sucrose, the major photosynthate, is loaded into its phloem is still a matter of debate. Current opinion holds that the phloem loading pathway in rice could involve either a symplasmic or an apoplasmic route. Splet14. apr. 2024 · The best effect was found when the concentration of ZnO NPs was 100mg/L. Compared with the control group, the concentration of As in the bud and root of rice seedlings decreased by 40.7% and 31.6%, respectively. Se and Si NPs reduced the absorption and accumulation of Cd and Pb in rice, thus reducing the lethal effect of … flushing meadows globe

Phloem loading in rice leaves depends strongly on the apoplastic ...

Splet04. maj 2024 · Phloem loading is the first step in sucrose transport from source leaves to sink organs. The phloem loading strategy in rice remains unclear. To determine the … Splet07. apr. 2024 · Phloem sap transport is essential for plant nutrition and development since it mediates redistribution of nutrients, metabolites and signaling molecules. However, its biochemical composition is not so well-known because phloem sap sampling is difficult and does not always allow extensive chemical analysis. In the past years, efforts have … SpletBackground and aims: Although Oryza sativa (rice) is one of the most important cereal crops, the mechanism by which sucrose, the major photosynthate, is loaded into its … greenfoot holiday home park

The mechanism of phloem loading in rice (Oryza sativa)

Low Nitrogen Enhances Apoplastic Phloem Loading and Improves …

Splet24. feb. 2024 · Phloem loading is the first step in sucrose transport from source leaves to sink organs. The phloem loading strategy in rice remains unclear. To determine the … SpletThe mechanism of phloem loading in rice (Oryza sativa) (Q37997647) From Wikidata. Jump to navigation ... greenfoot health barSpletElucidation of the phloem loading mechanism should im- prove our understanding of rice development and facilitate its manipulation towards the increase of crop productivity. flushing meadows event us open

"Splet01. maj 1998 · Rice (Oryza sativa L.) phloem sieve tubes contain RPP13-1, a thioredoxin h protein that moves around the plant via the translocation stream. Such phloem-mobile proteins are thought to be synthesized in the companion cells prior to being transferred, through plasmodesmata, to the enucleate sieve-tube members. " - The mechanism of phloem loading in rice

The mechanism of phloem loading in rice

Splet01. jan. 2024 · These results suggest that DEF8 is a dual function protein that facilitates Cd loading into xylem and unloading from phloem, thus mediating Cd translocation from roots to shoots and further allocation to grains, representing a phloem Cd unloading regulator. SpletPred 1 dnevom · Author summary Axillary meristems (AMs) generate branches and determine the inflorescence pattern, and further define the overall architecture of plants. In addition, they have great impacts on the tiller number and panicle size, and therefore significantly influence the seed number and yield of crops. Hence, understanding the …

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SpletPred 1 dnevom · Author summary Axillary meristems (AMs) generate branches and determine the inflorescence pattern, and further define the overall architecture of plants. … Splet17. dec. 2013 · The second type of phloem loading mechanism is known as apoplasmic loading. The apoplasm is the extracellular space outside of the symplasm, which is …

Splet19. avg. 2013 · Although the mechanism of phloem loading in rice is still unclear, rice is believed to primarily utilize the passive symplasmic phloem-loading pathway, with possible contributions from the apoplasmic pathway (Eom et al ., 2012 ). Splet17. maj 2024 · Overall, more studies on the evidence for the phloem loading mechanisms in rice leaves are merited. Considering that the stem reserve is another main source for rice …

Splet17. dec. 2013 · While phloem loading mechanisms have been extensively studied in dicot plants, there is less information about phloem loading in monocots. Maize and rice are major dietary staples, which... Splet26. mar. 2012 · Three phloem loading strategies have been identified, two active mechanisms, apoplastic loading via sucrose transporters and symplastic polymer …

Splet13. jan. 2012 · AtSWEET11 and 12 localize to the plasma membrane of the phloem. Mutant plants carrying insertions in AtSWEET11 and 12 are defective in phloem loading, thus revealing a two-step mechanism of SWEET-mediated export from parenchyma cells feeding H(+)-coupled import into the sieve element-companion cell complex.

SpletFigure 5: Hypothetical relationships between salinity tolerance and leaf Na+ concentration for three different species, denoted by a, b, and c for rice, durum wheat, and barley. Within most species, t... flushing meadows half marathonSpletSucrose is transported from sources (mature leaves) to sinks (importing tissues such as roots, stems, fruits, and seeds) through the phloem tissues in veins. In many herbaceous crop species, sucrose must first be effluxed to the cell wall by a sugar transporter of the SWEET family prior to being taken up into phloem companion cells or sieve elements by a … greenfoot how to make wallsSplet06. apr. 2024 · The third mechanism is polymer trapping, which involves the conversion of sucrose into relatively large sugar polymers, including verbacose, raffinose, and starchyose, that are supplied symplastically via intermediate cells. 20, 21 The active phloem loading into the apoplast is facilitated by sucrose transporters (SUTs or SUCs) and the recently ... greenfoot highscoreSpletThe mechanism of phloem loading in rice (Oryza sativa). Carbohydrates, mainly sucrose, that are synthesized in source organs are transported to sink organs to support growth and development. Phloem loading of sucrose is a crucial step that drives long-distance transport by elevating hydrostatic pressure in the phloem. greenfoot holiday home park stanhopeSplet26. nov. 2015 · If the revised diffusion model of phloem loading in rice were true, Suc loading would occur passively through the symplasmic continuum between … greenfoot if clickedSpletThe present paper attempts to correlate the plasmodesmatal connectivity between sieve element/companion cell complex and the adjacent cells (the minor vein configuration) – and implicitly the associate phloem loading mechanisms – with different types of climate. The nature of phloem loading of photosynthesis products – either symplastic or … greenfoot how to add a counterSplet26. mar. 2012 · The mechanism of phloem loading in rice (Oryza sativa) Carbohydrates, mainly sucrose, that are synthesized in source organs are transported to sink organs to … greenfoot home inspection