Since V. carteri had the highest GC content among the 20 selected species at both coding sequence and genome levels, we carried out additional GC3 analysis to test if the positive gradient is related with the high GC content. We classified all the coding sequences in each species as GC-poor or GC-rich and plotted the GC3 gradient for …
LFTs are highly variable across environmental gradients, plant life-forms, and phylogenetic groups, and show different plant responses to changing environmental conditions (Zheng et al., 2019). ... Generally, desert plants allocate high amount of N, but the average LNC was marginally lower than that of global plants (Reich and Oleksyn, ...
The high-energy electron travels down an electron transport chain in, losing energy as it goes. Some of the released energy drives pumping of H + ions from the stroma into the thylakoid, adding to the proton gradient. As H + ions flow down their gradient and back into the stroma, they pass through ATP synthase, driving ATP production. ATP is …
3.5. Generalist Importance at the High Elevation Plant–Pollinator Community. Flies comprise most interactions at the higher elevation community, and the importance of butterflies and moths also increases relative to lower life zones (31% of interactions at spruce fir, compared to 16% and 22% for ponderosa pine and mixed …
In the present study, we investigated the effects of a flooding gradient on the growth and carbohydrate reserves of Polygonum hydropiper plants originating from low- and high-elevation habitats in the Dongting Lake wetlands. The results indicated that shoot length did not differ, whereas the total biomass and carbohydrate reserves were …
Leaf morphological traits vary systematically along climatic gradients. However, recent studies in plant functional ecology have mainly analysed quantitative traits, while numerical models of species …
High-altitude climates are characterized by intense solar and UV (ultraviolet) stress, long periods of sunlight, low temperatures, and a significant temperature differential between day and night. These traits affect high-altitude plants' physical structure and physiological and metabolic functions. Abiotic stress responses are critical for …
The trait dataset contains 3,665 plant records from 145 taxa, 54,036 trait measurements (increasing the trait data coverage of the regional flora by 420%) …
Rather, prolonged high auxin levels generate a narrow PLT transcription domain from which a gradient of PLT protein is subsequently generated through slow growth dilution and cell-to-cell movement.
Ecological gradients shape the evolution of plant functional traits through variation in climate, abiotic factors, and biological processes. While recent observations highlight elevation clines in functional trait variation, several traits vary independently of others and vary in species-specific manner, thereby hindering community-level …
Active transport: moving against a gradient. To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form …
Mountains are biodiversity hotspots with high endemism that harbour one-quarter of terrestrial life, including a remarkably high plant richness in alpine life zones 1.This proves especially true ...
high gradient streams. Patterns of velocity and depth are included for high-gradient streams under this parameter as an important feature of habitat diversity. The best streams in most high-gradient regions will have all 4 patterns present: (1) slow-deep, (2) slow-shallow, (3) fast-deep, and (4) fast-shallow.
The rapid decrease of AMF abundance in plant roots along the elevational gradient corresponds with previous reports from high elevations 10, 14, 22, 23. Nevertheless, all records from these ...
Studies on plant growth and trait variation along environmental gradients can provide important information for identifying drivers of plant invasions and for deriving management strategies. We used seeds of the annual plant invader Ambrosia artemisiifolia L. (common ragweed) collected from an agricultural site in Northern Italy (226 m. a.s.l; …
Transport in plants. Water movement in plants. water moves from soil to air. running down the pressure gradient. no energy input required. Cell-to-cell movement of water. depends upon solute potential and pressure potential. potential = ability to do work.
2.2. Vegetation Sampling and Water Regime. A previous study examined community assembly and trait selection across the hydrological gradient in this location …
Apart from altitude, temperature and precipitation also made a strong gradient influencing plant species richness and diversity in alpine regions Figure 5. ... Pandey, A., Chandra Sekar, K., Joshi, B., & Rawal, R. S. (2019). Threat assessment of high-value medicinal plants of cold desert areas in Johar valley, Kailash Sacred …
Here, using 219,520 native and 9,531 naturalized alien plant species across 487 globally distributed regions, we found a latitudinal gradient in Darwin's naturalization conundrum.
Contrasting biomass allocation responses across ontogeny and stress gradients reveal plant adaptations to drought and cold. Jiri Dolezal, Corresponding Author. Jiri Dolezal ... India. The plants were collected on a high-altitude plateau east of Tso Moriri Lake (34°45′N, 77°35′E), between Shukule (6,514 m) and Chamser Kangri …
To identify plant leaf features, a high-performance, multiscale fusion convolutional neural network (MSF-CNN) has been developed (Hu et al., 2018). The MSF-CNN is superior to conventional plant leaf identification techniques on the LeafSnap and MalayaKew datasets. ... Gradient descent was used to minimize the cost function and …
In plant cells, high concentration of Na + can induce ionic stress. Therefore, sensing salt signals is essential for initiating the re-establishment of ionic homeostasis of the cell under stress conditions. ... SOS2 creates a proton gradient across the vacuolar membrane by activating vacuolar H +-ATPase. GI, GIGANTEA; ABI2, ABA …
The impact of altitudinal gradient on the physiological attributes of high-altitude native plant species was determined. Plant species investigated were Pedicularis punctata (Orobanchaceae) and Plantago major (Plantaginaceae). The former is endemic to the Himalayas and the latter is distributed throughout Europe and Asia.
We thus lack a quantitative assessment of the extent and adaptive significance of genetically based variation in plant traits along elevation gradients in plants (see Keller …
A stream's gradient profile can be generalized as gradually changing from steep to low gradient as we move from high to low elevation and from small to large rivers (Figure 3; Montgomery and ...
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We found a marked gradient in plant seawater use from the lowermost pioneer zone (79–98% seawater uptake by S. anglica) to the lower marsh (61–95% by A. portulacoides) and the upper marsh (25–39% by E. atherica). ... Plants using seawater as a water source have developed various mechanisms for minimizing the negative effects of …
At the high end of the soil fertility gradient, plant species that allocate relatively more carbon aboveground than belowground are predicted to be better …
