scholarly journals Is triose phosphate utilization important for understanding photosynthesis?

2019 ◽  
Vol 70 (20) ◽  
pp. 5521-5525 ◽  
Author(s):  
Thomas D Sharkey
Keyword(s):  
Feedback Inhibition ◽  
Triose Phosphate ◽  
Experimental Botany ◽  
Sink Limitation

This article comments on:Fabre D, Yin X, Dingkuhn M, Clément-Vidal A, Roques S, Rouan L, Soutiras A, Luquet D. 2019. Is triose phosphate utilization involved in the feedback inhibition of photosynthesis in rice under conditions of sink limitation? Journal of Experimental Botany 70, 5773–5785.

scholarly journals Is triose phosphate utilization involved in the feedback inhibition of photosynthesis in rice under conditions of sink limitation?

2019 ◽  
Vol 70 (20) ◽  
pp. 5773-5785 ◽  
Author(s):  
Denis Fabre ◽  
Xinyou Yin ◽  
Michael Dingkuhn ◽  
Anne Clément-Vidal ◽  
Sandrine Roques ◽  
...  
Keyword(s):  
Elevated Co2 ◽  
Feedback Inhibition ◽  
Triose Phosphate ◽  
Sink Limitation ◽  
Source Sink ◽  
Regulation Of Photosynthesis

Triose phosphate utilization is involved in the regulation of photosynthesis under elevated CO2 conditions, and it should be considered in photosynthesis studies under severe source–sink imbalance at elevated CO2.

scholarly journals Turning sugar into oil: making photosynthesis blind to feedback inhibition

2020 ◽  
Vol 71 (7) ◽  
pp. 2216-2218 ◽  
Author(s):  
Matthew J Paul ◽  
Peter J Eastmond
Keyword(s):  
Elevated Co2 ◽  
Perennial Ryegrass ◽  
Carbon Capture ◽  
Feedback Inhibition ◽  
Experimental Botany

This article comments on: Beechey-Gradwell Z, Cooney L, Winichayakul S, Andrews M, Hea SY, Crowther T, Roberts N. 2020. Storing carbon in leaf lipid sinks enhanced perennial ryegrass carbon capture especially under high N and elevated CO2. Journal of Experimental Botany 71, 2351–2361.

scholarly journals Role of Triose Phosphate Utilization in photosynthetic response of rice to variable carbon dioxide levels and plant source-sink relations

2019 ◽  
Author(s):  
Denis Fabre ◽  
Xinyou Yin ◽  
Michael Dingkuhn ◽  
Anne Clément-Vidal ◽  
Sandrine Roques ◽  
...  
Keyword(s):  
Indica Rice ◽  
Flag Leaf ◽  
Rice Cultivar ◽  
Photosynthetic Parameters ◽  
Response Curves ◽  
Crop Models ◽  
Triose Phosphate ◽  
Sink Limitation ◽  
Carbon Dioxide Levels ◽  
Source Sink

AbstractThis study aimed to understand the physiological bases of rice photosynthesis response to C source-sink imbalances, with focus on dynamics of the photosynthetic parameter TPU (Triose Phosphate Utilization). A dedicated experiment was replicated twice on IR64 indica rice cultivar in controlled environments. Plants were grown under the current ambient CO2 concentration until heading, thereafter, two CO2 treatments (400 and 800 μmol mol−1) were compared in the presence and absence of a panicle pruning treatment modifying the C sink. At two weeks after heading, photosynthetic parameters derived from CO2 response curves, and nonstructural carbohydrate content of flag leaf and internodes were measured 3-4 times of day. Spikelet number per panicle and flag leaf area on the main culm were recorded. Net C assimilation and TPU decreased progressively after midday in panicle-pruned plants, especially under 800 μmol mol−1. This TPU reduction was explained by sucrose accumulation in the flag leaf resulting from the sink limitation. It is suggested that TPU is involved in rice photosynthesis regulation under elevated CO2 conditions, and that sink limitation effects should be considered in crop models.HighlightThis study provide new insights in the effect of C source-sink relationships on rice photosynthesis. TPU should be considered in photosynthesis studies under severe source-sink imbalance at elevated CO2.

(A review) Vegetation and biotopes of the National Park “Narochansky” with the Map of terrestrial vegetation (S. 1 : 60 000) and the Map of biotopes (S. 1 : 60 000)

2019 ◽  
pp. 68-72
Author(s):  
E. A. Volkova
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Practical Importance ◽  
Vegetation Mapping ◽  
Small Scale ◽  
Terrestrial Vegetation ◽  
Economic Activities ◽  
National Academy Of Sciences ◽  
Experimental Botany ◽  
High Level

A monograph “Vegetation and biotopes of the “Narochansky” National Park was published in Minsk, Belarus in 2017, edited by A. V. Pugachevsky (Grummo et al., 2017). It includes the Map of terrestrial vegetation (S. 1 : 60 000) and the Map of biotopes (S. 1 : 60 000). Some small-scale maps such as the Map of changes in forest cover of the “Narochansky” National Park for the period 1985–2016, the Map of forest loss in the “Narochansky” National Park for the period 1985–2016 and a series of inventory and analytical maps on the basin of the Naroch Lake are given. This monograph can be considered as a small regional Atlas with detailed explanatory texts to the maps. It presents the experience on vegetation mapping accumulated in the Laboratory of Geobotany and Vegetation mapping of the Institute of Experimental Botany of the National Academy of Sciences of Belarus. Despite some critical comments, mainly concerning the biotope map, this publication of Belarusian geobotanists deserves an approval. They received the full answers to the questions posed: “What do we protect?” and “What is a current state of the vegetation of the National Park and the main trends of its dynamics? Cartographic design is made at a high level; the maps have both scientific and practical importance in the planning of environmental and economic activities.

An Experimental Botany

1900 ◽  
Vol 34 (403) ◽  
pp. 605-606
Keyword(s):  
Experimental Botany
Sign in / Sign up

Export Citation Format

Share Document