Green Light Drives CO2 Fixation Deep within Leaves
نویسندگان
چکیده
منابع مشابه
C-labeled Assimilates in Grapefruit: Light and Dark CO2 Fixation by Leaves and Fruit
Distribution of radiolabeled assimilates was examined at various intervals after 1 hour of light or dark 14CO2 fixation by leaves or developing fruit of grapefruit (Citrus paradisi Macf.) so that the fate of assimilates from each source could be assessed at sequential stages of fruit growth. Exported products of both light and dark 14CO2 fixation in leaves were deposited primarily in juice tiss...
متن کاملDark CO2 Fixation in Avocado Roots, Leaves, and Fruit
In a previous study avocado roots fixed CO2 about as rapidly as orange and lemon roots but much slower than bean roots (2). However, homogenates of avocado roots or leaves did not fix CO2. This study was made to explore reasons for the failure of homogenates of avocado to show CO2 fixation, and also to understand more of the relatively low degree of CO2 fixation by avocado roots in. case it may...
متن کاملGreen light drives leaf photosynthesis more efficiently than red light in strong white light: revisiting the enigmatic question of why leaves are green.
The literature and our present examinations indicate that the intra-leaf light absorption profile is in most cases steeper than the photosynthetic capacity profile. In strong white light, therefore, the quantum yield of photosynthesis would be lower in the upper chloroplasts, located near the illuminated surface, than that in the lower chloroplasts. Because green light can penetrate further int...
متن کاملLight sheet microscopy reveals more gradual light attenuation in light-green versus dark-green soybean leaves
Light wavelengths preferentially absorbed by chlorophyll (chl) often display steep absorption gradients. This over-saturates photosynthesis in upper chloroplasts and deprives lower chloroplasts of blue and red light. Reducing chl content could create a more even leaf light distribution and thereby increase leaf light-use efficiency and overall canopy photosynthesis. This was tested on soybean c...
متن کاملA single evolutionary innovation drives the deep evolution of symbiotic N2-fixation in angiosperms
Symbiotic associations occur in every habitat on earth, but we know very little about their evolutionary histories. Current models of trait evolution cannot adequately reconstruct the deep history of symbiotic innovation, because they assume homogenous evolutionary processes across millions of years. Here we use a recently developed, heterogeneous and quantitative phylogenetic framework to stud...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant and Cell Physiology
سال: 1998
ISSN: 0032-0781,1471-9053
DOI: 10.1093/oxfordjournals.pcp.a029298