Reserve Mobilization
Mostrando 13-24 de 27 artigos, teses e dissertações.
-
13. Subcellular Localization Studies Indicate That Lipoxygenases 1 to 6 Are Not Involved in Lipid Mobilization during Soybean Germination1
Soybean (Glycine max) lipoxygenase (LOX) has been proposed to be involved in reserve lipid mobilization during germination. Here, subcellular fractionation studies show that LOX1, -2, -3, -4, -5, and -6 isozymes were associated with the soluble fraction but not with purified oil bodies. The purified oil bodies contained small amounts of LOX1 (<0.01% tot
American Society of Plant Physiologists.
-
14. Endothelial nitric oxide synthase is critical for ischemic remodeling, mural cell recruitment, and blood flow reserve
The genetic loss of endothelial-derived nitric oxide synthase (eNOS) in mice impairs vascular endothelial growth factor (VEGF) and ischemia-initiated blood flow recovery resulting in critical limb ischemia. This result may occur through impaired arteriogenesis, angiogenesis, or mobilization of stem and progenitor cells. Here, we show that after ischemic chal
National Academy of Sciences.
-
15. The Control of Storage Xyloglucan Mobilization in Cotyledons of Hymenaea courbaril1
Hymenaea courbaril is a leguminous tree species from the neotropical rain forests. Its cotyledons are largely enriched with a storage cell wall polysaccharide (xyloglucan). Studies of cell wall storage polymers have been focused mostly on the mechanisms of their disassembly, whereas the control of their mobilization and the relationship between their metabol
American Society of Plant Biologists.
-
16. Mobilization of sequestered metabolities into degradative reactions by nutritional stress in Neurospora.
The pools of arginine and ornithine rapidly disappear during nitrogen starvation of Neurospora crassa. Much of this disappearance can be accounted for by degradation catalyzed by preexisting catabolic enzymes. Purine degradation is also initiated by nitrogen metabolic stress. Mobilization of these compounds into degradative reactions does not appear to be a
-
17. Arabidopsis Seedling Growth, Storage Lipid Mobilization, and Photosynthetic Gene Expression Are Regulated by Carbon:Nitrogen Availability1
The objective of the current work was to establish the degree to which the effects of carbon and nitrogen availability on Arabidopsis seedling growth and development are due to these nutrients acting independently or together. Growth of seedlings on low (0.1 mm) nitrogen results in a significant reduction of seedling and cotyledon size, fresh weight, chlorop
American Society of Plant Physiologists.
-
18. Pre-Anthesis Reserve Utilization for Protein and Carbohydrate Synthesis in Grains of Wheat1
We assessed the contribution of pre-anthesis reserve C to protein and carbohydrate deposition in grains of wheat (Triticum aestivum L.) using a new approach comprised of steady-state 13C/12C labeling and separation of the protein and carbohydrate fractions of mature grains. Experiments were performed with two spring wheat cultivars (Kadett and Star) grown wi
American Society of Plant Physiologists.
-
19. Carbohydrate Status of Tulip Bulbs during Cold-Induced Flower Stalk Elongation and Flowering.
The effect of a cold treatment on the carbohydrate status of the scales and flower stalk of Tulipa gesneriana L. cv Apeldoorn bulbs during growth after planting was studied and compared with bulbs not given cold treatment. Bulbs were stored dry for 12 weeks at 5[deg]C (precooled) or 17[deg]C (noncooled). Only the 5[deg]C treatment led to rapid flower stalk e
-
20. Nitrogen Reserve Mobilization during Regrowth of Medicago sativa L. (Relationships between Availability and Regrowth Yield).
An experiment was designed to study the role of N and C reserves on regrowth of the shoots following defoliation of forage species. Starch and N accumulation in root and crown tissue of nonnodulated Medicago sativa L. were modified during regrowth by applying different levels of N and different cutting heights. Plants were obtained with similar crown and roo
-
21. An Arabidopsis pex10 Null Mutant Is Embryo Lethal, Implicating Peroxisomes in an Essential Role during Plant Embryogenesis1
Peroxisomes participate in many important functions in plants, including seed reserve mobilization, photorespiration, defense against oxidative stress, and auxin and jasmonate signaling. In mammals, defects in peroxisome biogenesis result in multiple system abnormalities, severe developmental delay, and death, whereas in unicellular yeasts, peroxisomes are d
The American Society for Plant Biologists.
-
22. Reserve Mobilization in the Arabidopsis Endosperm Fuels Hypocotyl Elongation in the Dark, Is Independent of Abscisic Acid, and Requires PHOSPHOENOLPYRUVATE CARBOXYKINASE1
Arabidopsis thaliana is used as a model system to study triacylglycerol (TAG) accumulation and seed germination in oilseeds. Here, we consider the partitioning of these lipid reserves between embryo and endosperm tissues in the mature seed. The Arabidopsis endosperm accumulates significant quantities of storage lipid, and this is effectively catabolized upon
American Society of Plant Biologists.
-
23. Effects of cytochalasin treatment on short-term synaptic plasticity at developing neuromuscular junctions in frogs.
1. The role of actin microfilaments in synaptic transmission was tested by monitoring spontaneous and evoked transmitter release from developing neuromuscular synapses in Xenopus nerve-muscle cultures, using whole-cell recording of synaptic currents in the absence and presence of microfilament-disrupting agents cytochalasins B and D. 2. Treatment with cytoch
-
24. Identification and Differential Expression of Two Thioredoxin h Isoforms in Germinating Seeds from Pea1
The NADPH/NADP-thioredoxin (Trx) reductase (NTR)/Trx system (NTS) is a redox system that plays a posttranslational regulatory role by reducing protein targets involved in crucial cellular processes in microorganisms and animals. In plants, the system includes several h type Trx isoforms and has been shown to intervene in reserve mobilization during early
The American Society for Plant Biologists.