Mesophyll conductance exerts a significant limitation on photosynthesis during light induction

2021 ◽  
Author(s):  
Tao Liu ◽  
Margaret M. Barbour ◽  
Dashi Yu ◽  
Sen Rao ◽  
Xin Song
Keyword(s):  
Light Induction ◽  
Mesophyll Conductance ◽  
Significant Limitation

Mesophyll conductance to CO2 is the most significant limitation to photosynthesis at different temperatures and water availabilities in Antarctic vascular species

2018 ◽  
Vol 156 ◽  
pp. 279-287 ◽  
Author(s):  
Patricia L. Sáez ◽  
Jeroni Galmés ◽  
Constanza F. Ramírez ◽  
Leticia Poblete ◽  
Betsy K. Rivera ◽  
...  
Keyword(s):  
Mesophyll Conductance ◽  
Significant Limitation ◽  
Different Temperatures

Photo-tethered molecular beacons for superior light-induction

2021 ◽  
Author(s):  
Robin Klimek ◽  
Mantian Wang ◽  
Vivien R. McKenney ◽  
Erin M. Schuman ◽  
Alexander Heckel
Keyword(s):  
Molecular Beacons ◽  
Light Induction ◽  
In Cells

Photolabile circularization of molecular beacons via backbone phosphates leads to superior probes to study spatiotemporal aspects of RNA in cells.

Mesophyll conductance: the leaf corridors for photosynthesis

2020 ◽  
Vol 48 (2) ◽  
pp. 429-439 ◽  
Author(s):  
Jorge Gago ◽  
Danilo M. Daloso ◽  
Marc Carriquí ◽  
Miquel Nadal ◽  
Melanie Morales ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Current Knowledge ◽  
Main Role ◽  
Mesophyll Conductance ◽  
Future Studies ◽  
Cell Structures ◽  
Leaf Tissues ◽  
Change Framework ◽  
Chloroplast Stroma

Besides stomata, the photosynthetic CO2 pathway also involves the transport of CO2 from the sub-stomatal air spaces inside to the carboxylation sites in the chloroplast stroma, where Rubisco is located. This pathway is far to be a simple and direct way, formed by series of consecutive barriers that the CO2 should cross to be finally assimilated in photosynthesis, known as the mesophyll conductance (gm). Therefore, the gm reflects the pathway through different air, water and biophysical barriers within the leaf tissues and cell structures. Currently, it is known that gm can impose the same level of limitation (or even higher depending of the conditions) to photosynthesis than the wider known stomata or biochemistry. In this mini-review, we are focused on each of the gm determinants to summarize the current knowledge on the mechanisms driving gm from anatomical to metabolic and biochemical perspectives. Special attention deserve the latest studies demonstrating the importance of the molecular mechanisms driving anatomical traits as cell wall and the chloroplast surface exposed to the mesophyll airspaces (Sc/S) that significantly constrain gm. However, even considering these recent discoveries, still is poorly understood the mechanisms about signaling pathways linking the environment a/biotic stressors with gm responses. Thus, considering the main role of gm as a major driver of the CO2 availability at the carboxylation sites, future studies into these aspects will help us to understand photosynthesis responses in a global change framework.

C4 grasses adapted to low precipitation habitats show traits related to greater mesophyll conductance and lower leaf hydraulic conductance

Authorea ◽  
2020 ◽  
Author(s):  
VARSHA PATHARE ◽  
Balasaheb Vitthal Sonawane ◽  
Nuria Koteyeva ◽  
Asaph B Cousins
Keyword(s):  
Hydraulic Conductance ◽  
C4 Grasses ◽  
Mesophyll Conductance ◽  
Leaf Hydraulic Conductance ◽  
Low Precipitation

scholarly journals Genome-Wide Identification of the B-BOX Genes that Respond to Multiple Ripening Related Signals in Sweet Cherry Fruit

2021 ◽  
Vol 22 (4) ◽  
pp. 1622
Author(s):  
Yanyan Wang ◽  
Zefeng Zhai ◽  
Yueting Sun ◽  
Chen Feng ◽  
Xiang Peng ◽  
...  
Keyword(s):  
Signaling Pathways ◽  
Stress Responses ◽  
Fruit Development ◽  
Sweet Cherry ◽  
Anthocyanin Biosynthesis ◽  
Expression Patterns ◽  
Light Induction ◽  
Promoter Regions ◽  
Genome Database ◽  
Gene Structures

B-BOX proteins are zinc finger transcription factors that play important roles in plant growth, development, and abiotic stress responses. In this study, we identified 15 PavBBX genes in the genome database of sweet cherry. We systematically analyzed the gene structures, clustering characteristics, and expression patterns of these genes during fruit development and in response to light and various hormones. The PavBBX genes were divided into five subgroups. The promoter regions of the PavBBX genes contain cis-acting elements related to plant development, hormones, and stress. qRT-PCR revealed five upregulated and eight downregulated PavBBX genes during fruit development. In addition, PavBBX6, PavBBX9, and PavBBX11 were upregulated in response to light induction. We also found that ABA, BR, and GA3 contents significantly increased in response to light induction. Furthermore, the expression of several PavBBX genes was highly correlated with the expression of anthocyanin biosynthesis genes, light-responsive genes, and genes that function in multiple hormone signaling pathways. Some PavBBX genes were strongly induced by ABA, GA, and BR treatment. Notably, PavBBX6 and PavBBX9 responded to all three hormones. Taken together, BBX proteins likely play major roles in regulating anthocyanin biosynthesis in sweet cherry fruit by integrating light, ABA, GA, and BR signaling pathways.

Mesophyll conductance variability of rice aquaporin knockout lines at different growth‐stages and growing environments

2021 ◽  
Author(s):  
Xianhong Huang ◽  
Zhixin Wang ◽  
Jianliang Huang ◽  
Shaobing Peng ◽  
Dongliang Xiong
Keyword(s):  
Growth Stages ◽  
Mesophyll Conductance ◽  
Different Growth Stages

Acclimation of mesophyll conductance and anatomy to light during leaf ageing in Arabidopsis thaliana

2021 ◽  
Author(s):  
Marc Carriquí ◽  
Miquel Nadal ◽  
Jaume Flexas
Keyword(s):  
Arabidopsis Thaliana ◽  
Mesophyll Conductance ◽  
Leaf Ageing

On the mechanism of light induction of plant microsomal cinnamic acid 4-hydroxylase

Planta ◽  
1975 ◽  
Vol 124 (2) ◽  
pp. 211-214 ◽  
Author(s):  
D. Scheel ◽  
H. Sandermann
Keyword(s):  
Cinnamic Acid ◽  
Light Induction

scholarly journals Mesophyll conductance in cotton bracts: anatomically determined internal CO2 diffusion constraints on photosynthesis

2018 ◽  
Author(s):  
Jimei Han ◽  
Zhangying Lei ◽  
Jaume Flexas ◽  
Yujie Zhang ◽  
Marc Carriquí ◽  
...  
Keyword(s):  
Mesophyll Conductance ◽  
Co2 Diffusion ◽  
Internal Co2 ◽  
Cotton Bracts
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