scholarly journals Phosphorus recycling in photorespiration maintains high photosynthetic capacity in woody species

2015 ◽  
Vol 38 (6) ◽  
pp. 1142-1156 ◽  
Author(s):  
DAVID S. ELLSWORTH ◽  
KRISTINE Y. CROUS ◽  
HANS LAMBERS ◽  
JULIA COOKE
2003 ◽  
Vol 46 (2) ◽  
pp. 243-252 ◽  
Author(s):  
Carlos Cesar Ronquim ◽  
Carlos Henrique B. de A. Prado ◽  
Nádia Figueiredo de Paula

Seedlings of two woody species of cerrado vegetation, Copaifera langsdorffii and Eriotheca gracilipes, were studied under three different radiation availability (100, 80 and 30% transmittance). Full solar radiation brought about more biomass, higher total leaf area, higher maximal photosynthesis per crown on area or on mass bases and higher photosynthetic capacity on area bases. Only the photosynthetic capacity values on leaf mass bases were higher in both species under low radiation availability (80 and 30% transmittance). The differences of accumulated biomass appeared more clearly after 4 months of sowing but the root/shoot dry biomass ratio and height were maintained constant for both species independently of the available radiation. Cultivated under full solar radiation both species will be able to cover more suitable the two processes during seedling's phase: growth and defense.


2017 ◽  
Vol 44 (3) ◽  
pp. 351 ◽  
Author(s):  
Hui Zhu ◽  
Ling-Da Zeng ◽  
Xiao-Ping Yi ◽  
Chang-Lian Peng ◽  
Wang-Feng Zhang ◽  
...  

The content of cytochrome (cyt) bf complex is the main rate-limiting factor that determines light- and CO2-saturated photosynthetic capacity. A study of the half-life of the cyt f content in leaves was conducted whereby Pisum sativum L. plants, grown in moderately high light (HL), were transferred to low light (LL). The cyt f content in fully-expanded leaves decreased steadily over the 2 weeks after the HL-to-LL transfer, whereas control leaves in HL retained their high contents. The difference between the time courses of HL-to-LL plants and control HL plants represents the time course of loss of cyt f content, with a half-life of 1.7 days, which is >3-fold shorter than that reported for tobacco leaves at constant growth irradiance using an RNA interference approach (Hojka et al. 2014). After transfer to LL (16 h photoperiod), pea plants were re-exposed to HL for 0, 1.5 h or 5 h during the otherwise LL photoperiod, but the cyt f content of fully-expanded leaves declined practically at the same rate regardless of whether HL was re-introduced for 0, 1.5 h or 5 h during each 16 h LL photoperiod. It appears that fully-expanded leaves, having matured under HL, were unable to increase their cyt f content when re-introduced to HL. These findings are relevant to any attempts to maintain a high photosynthetic capacity when the growth irradiance is temporarily decreased by shading or overcast weather.


2005 ◽  
Vol 8 (5) ◽  
pp. 539-545 ◽  
Author(s):  
Chisato Masumoto ◽  
Takashige Ishii ◽  
Tomoko Hatanaka ◽  
Naotsugu Uchida

2009 ◽  
Vol 54 (17) ◽  
pp. 3045-3052 ◽  
Author(s):  
YongKang Liu ◽  
MingJun Li ◽  
JingYuan Li ◽  
XiaoJuan Li ◽  
XingHong Yang ◽  
...  

Science ◽  
1976 ◽  
Vol 194 (4262) ◽  
pp. 322-324 ◽  
Author(s):  
H. A. MOONEY ◽  
J. EHLERINGER ◽  
J. A. BERRY

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