Response of Xanthium strumarium leaf respiration in the light to elevated CO 2 concentration, nitrogen availability and temperature
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چکیده
منابع مشابه
Effects of elevated atmospheric CO2 concentration on leaf dark respiration of Xanthium strumarium in light and in darkness.
Leaf dark respiration (R) is an important component of plant carbon balance, but the effects of rising atmospheric CO(2) on leaf R during illumination are largely unknown. We studied the effects of elevated CO(2) on leaf R in light (R(L)) and in darkness (R(D)) in Xanthium strumarium at different developmental stages. Leaf R(L) was estimated by using the Kok method, whereas leaf R(D) was measur...
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Bunning suggested that circadian rhythms provide the basis for time measurement in the photoperiodic responses of plants (2). A classic example is found in Glycine max. L. Merr. (Biloxi soybean), whose flowering response occurs in a rhythmical form having peaks of flowering that were approximately 24 hr apart (6). Recentlv Moore et al. (5) reported that Xanthiuim pensylvanicum did not exhibit a...
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Extract in organic solvent methanol of X. strumarium evaluated for their Phytochemical screening and antibacterial activities against eight pathogenic bacteria such as, Klebsiella pneumoniae NCIM 2719, Proteus vulgaris NCTC 8313, Pseudomonas aeruginosa ATCC 27853, Pseudomonas putida ATCC 12842, Salmonella typhimurium ATCC 23564, Bacillus cereus ATCC 12842, Bacillus subtilis ATCC 6633, Staphyloc...
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Terrestrial plant and soil respiration, or ecosystem respiration (Reco), represents a major CO2 flux in the global carbon cycle. However, there is disagreement in how Reco will respond to future global changes, such as elevated atmosphere CO2 and warming. To address this, we synthesized six years (2007–2012) of Reco data from the Prairie Heating And CO2 Enrichment (PHACE) experiment. We applied...
متن کاملAbscisic Acid Metabolism in Relation to Water Stress and Leaf Age in Xanthium strumarium.
Intact plants of Xanthium strumarium L. were subjected to a water stress-recovery cycle. As the stress took effect, leaf growth ceased and stomatal resistance increased. The mature leaves then wilted, followed by the half expanded ones. Water, solute, and pressure potentials fell steadily in all leaves during the rest of the stress period. After 3 days, the young leaves lost turgor and the plan...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2004
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.2004.01046.x