The effects of mandible morphology and photosynthetic pathway on selective herbivory in grasshoppers

Oecologia ◽  
1981 ◽  
Vol 51 (2) ◽  
pp. 281-283 ◽  
Author(s):  
Dan E. Bennack
Keyword(s):  
Photosynthetic Pathway ◽  
Selective Herbivory

Anatomical Characteristics of C4 and C3 Photosynthetic-pathway Poaceae Plants in Hainan

2011 ◽  
Vol 46 (4) ◽  
pp. 456-469 ◽  
Author(s):  
Yang Hubiao ◽  
Li Xiaoxia ◽  
Yu Daogeng ◽  
Liu Guodao ◽  
Luo Lijuan
Keyword(s):  
Photosynthetic Pathway ◽  
Anatomical Characteristics

Olfactory and visual plant cues as drivers of selective herbivory

Oikos ◽  
2016 ◽  
Vol 126 (2) ◽  
Author(s):  
Rebecca S. Stutz ◽  
Benjamin M. Croak ◽  
Nicholas Proschogo ◽  
Peter B. Banks ◽  
Clare McArthur
Keyword(s):  
Selective Herbivory

Do competition and selective herbivory cause replacement of Phragmites australis by tall forbs?

2004 ◽  
Vol 78 (3) ◽  
pp. 217-232 ◽  
Author(s):  
J.P.M Lenssen ◽  
F.B.J Menting ◽  
W.H van der Putten
Keyword(s):  
Phragmites Australis ◽  
Selective Herbivory

scholarly journals Photosynthetic Characteristics of Four Wild Dendrobium Species in China

HortScience ◽  
2014 ◽  
Vol 49 (8) ◽  
pp. 1023-1027
Author(s):  
Gang-Yi Wu ◽  
Jun-Ai Hui ◽  
Zai-Hua Wang ◽  
Jie Li ◽  
Qing-Sheng Ye
Keyword(s):  
Glycolate Oxidase ◽  
Photosynthetic Pathway ◽  
Light Saturation ◽  
Saturation Point ◽  
Apparent Quantum Yield ◽  
Bisphosphate Carboxylase ◽  
Photosynthetic Physiology ◽  
Light Saturation Point ◽  
Second Peak ◽  
Dendrobium Densiflorum

Photosynthetic physiology of Dendrobium nobile, Dendrobium pendulum, Dendrobium chrysotoxum, and Dendrobium densiflorum was studied. A bimodal diurnal variation of the net photosynthetic rate (Pn) was observed in the four Dendrobium species with the first peak [5.09 to 6.06 μmol (CO2) per m−2·s−1] ≈1100 hr and the second peak [3.83 to 4.58 μmol (CO2) per m−2·s−1] at 1500 hr. No CO2 fixation was observed at night. For all four Dendrobium species, the light compensation point (LCP) was 5 to 10 μmol·m−2·s−1, light saturation point (LSP) ranged from 800 to 1000 μmol·m−2·s−1, apparent quantum yield (AQY) was 0.02, and CO2 compensation points (CCP) and saturation point (CSP) were 60 to 85 μmol·mol−1 and 800 to 1000 μmol·mol−1, respectively. Carboxylation efficiency (CE) values ranged from 0.011 to 0.020. The optimum temperature for photosynthesis was between 26 and 30 °C. The measurement of Pn seasonal variation indicated that July to August had the higher Pn for Dendrobium species. Additionally, the chlorophyll a/b (Chl a/b) ratios of the leaves were 2.77 to 2.89. Measurement of key enzymes in the photosynthetic pathway indicated relatively high Ribulose-1,5-bisphosphate carboxylase (RuBPCase) and glycolate oxidase (GO) activities but very low phosphoenolpyruvate carboxylase (PEPCase) activities. It suggested that these four Dendrobium species are typical semishade C3 plants.

scholarly journals Ecophysiological traits of grasses: resolving the effects of photosynthetic pathway and phylogeny

2009 ◽  
Author(s):  
Samuel Taylor ◽  
Mark Rees ◽  
Stephen Hulme ◽  
Rob Freckleton ◽  
Brad Ripley ◽  
...  
Keyword(s):  
Photosynthetic Pathway ◽  
Ecophysiological Traits

scholarly journals A cyanobacterial photorespiratory bypass model to enhance photosynthesis by rerouting photorespiratory pathway in C3 plants

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ghazal Khurshid ◽  
Anum Zeb Abbassi ◽  
Muhammad Farhan Khalid ◽  
Mahnoor Naseer Gondal ◽  
Tatheer Alam Naqvi ◽  
...  
Keyword(s):  
Kinetic Model ◽  
Inorganic Phosphate ◽  
Elevated Level ◽  
Photosynthetic Efficiency ◽  
C3 Plants ◽  
Simultaneous Increase ◽  
Photosynthetic Pathway ◽  
Bisphosphate Carboxylase ◽  
Toxic Compound ◽  
Overall Efficiency

AbstractPlants employ photosynthesis to produce sugars for supporting their growth. During photosynthesis, an enzyme Ribulose 1,5 bisphosphate carboxylase/oxygenase (Rubisco) combines its substrate Ribulose 1,5 bisphosphate (RuBP) with CO2 to produce phosphoglycerate (PGA). Alongside, Rubisco also takes up O2 and produce 2-phosphoglycolate (2-PG), a toxic compound broken down into PGA through photorespiration. Photorespiration is not only a resource-demanding process but also results in CO2 loss which affects photosynthetic efficiency in C3 plants. Here, we propose to circumvent photorespiration by adopting the cyanobacterial glycolate decarboxylation pathway into C3 plants. For that, we have integrated the cyanobacterial glycolate decarboxylation pathway into a kinetic model of C3 photosynthetic pathway to evaluate its impact on photosynthesis and photorespiration. Our results show that the cyanobacterial glycolate decarboxylation bypass model exhibits a 10% increase in net photosynthetic rate (A) in comparison with C3 model. Moreover, an increased supply of intercellular CO2 (Ci) from the bypass resulted in a 54.8% increase in PGA while reducing photorespiratory intermediates including glycolate (− 49%) and serine (− 32%). The bypass model, at default conditions, also elucidated a decline in phosphate-based metabolites including RuBP (− 61.3%). The C3 model at elevated level of inorganic phosphate (Pi), exhibited a significant change in RuBP (+ 355%) and PGA (− 98%) which is attributable to the low availability of Ci. Whereas, at elevated Pi, the bypass model exhibited an increase of 73.1% and 33.9% in PGA and RuBP, respectively. Therefore, we deduce a synergistic effect of elevation in CO2 and Pi pool on photosynthesis. We also evaluated the integrative action of CO2, Pi, and Rubisco carboxylation activity (Vcmax) on A and observed that their simultaneous increase raised A by 26%, in the bypass model. Taken together, the study potentiates engineering of cyanobacterial decarboxylation pathway in C3 plants to bypass photorespiration thereby increasing the overall efficiency of photosynthesis.

scholarly journals Comparative genomic analysis of C4 photosynthetic pathway evolution in grasses

2009 ◽  
Vol 10 (6) ◽  
pp. R68 ◽  
Author(s):  
Xiyin Wang ◽  
Udo Gowik ◽  
Haibao Tang ◽  
John E Bowers ◽  
Peter Westhoff ◽  
...  
Keyword(s):  
Genomic Analysis ◽  
Comparative Genomic Analysis ◽  
Comparative Genomic ◽  
Photosynthetic Pathway ◽  
Pathway Evolution

scholarly journals Evolutionary bursts inEuphorbia(Euphorbiaceae) are linked with photosynthetic pathway

Evolution ◽  
2014 ◽  
Vol 68 (12) ◽  
pp. 3485-3504 ◽  
Author(s):  
James W. Horn ◽  
Zhenxiang Xi ◽  
Ricarda Riina ◽  
Jess A. Peirson ◽  
Ya Yang ◽  
...  
Keyword(s):  
Photosynthetic Pathway
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