scholarly journals Drought Induces Distinct Growth Response, Protection, and Recovery Mechanisms in the Maize Leaf Growth Zone

2015 ◽  
Vol 169 (2) ◽  
pp. 1382-1396 ◽  
Author(s):  
Viktoriya Avramova ◽  
Hamada AbdElgawad ◽  
Zhengfeng Zhang ◽  
Bartosz Fotschki ◽  
Romina Casadevall ◽  
...  
Keyword(s):  
Growth Response ◽  
Leaf Growth ◽  
Growth Zone ◽  
Maize Leaf ◽  
Recovery Mechanisms

scholarly journals How grass keeps growing: an integrated analysis of hormonal crosstalk in the maize leaf growth zone

2019 ◽  
Vol 225 (6) ◽  
pp. 2513-2525 ◽  
Author(s):  
Dirk De Vos ◽  
Hilde Nelissen ◽  
Hamada AbdElgawad ◽  
Els Prinsen ◽  
Jan Broeckhove ◽  
...  
Keyword(s):  
Leaf Growth ◽  
Growth Zone ◽  
Integrated Analysis ◽  
Maize Leaf ◽  
Hormonal Crosstalk

scholarly journals Differential Methylation during Maize Leaf Growth Targets Developmentally Regulated Genes

2014 ◽  
Vol 164 (3) ◽  
pp. 1350-1364 ◽  
Author(s):  
Jasper Candaele ◽  
Kirin Demuynck ◽  
Douglas Mosoti ◽  
Gerrit T.S. Beemster ◽  
Dirk Inzé ◽  
...  
Keyword(s):  
Leaf Growth ◽  
Differential Methylation ◽  
Developmentally Regulated ◽  
Maize Leaf

Leaf area development of ABA-deficient and wild-type peas at two levels of nitrogen supply

2003 ◽  
Vol 30 (7) ◽  
pp. 777 ◽  
Author(s):  
Ian C. Dodd
Keyword(s):  
Growth Response ◽  
Leaf Growth ◽  
Nitrogen Supply ◽  
Genotypic Differences ◽  
Wild Type ◽  
Ethylene Evolution ◽  
Relative Water ◽  
Ca 50 ◽  
Area Development ◽  
Water Contents

The ABA-deficient wilty pea (Pisum sativum L.) and its wild-type (WT) were grown at two levels of nitrogen supply (0.5 and 5.0 mM) for 5–6 weeks from sowing, to determine whether leaf ABA status altered the leaf growth response to N deprivation. Plants were grown at high relative humidity to prevent wilting of the wilty peas. Irrespective of N supply, expanding wilty leaflets had ca 50% less ABA than WT leaflets but similar ethylene evolution rates. Fully expanded wilty leaflets had lower relative water contents (RWC) and were 10–60% smaller in area (according to the node of measurement) than WT leaflets. However, there were no genotypic differences in plant relative leaf expansion rate (RLER). Growth of both genotypes at 0.5 mM N increased the RWC of fully expanded leaflets, but did not alter ethylene evolution or ABA concentration of expanding leaflets. Plants grown at 0.5 mM N showed a 20–30% reduction in RLER, which was similar in magnitude in both wilty and WT peas. Thus,�leaf ABA status did not alter the leaf growth response to N deprivation.

Cadmium inhibits cell cycle progression and specifically accumulates in the maize leaf meristem

2020 ◽  
Vol 71 (20) ◽  
pp. 6418-6428
Author(s):  
Jonas Bertels ◽  
Michiel Huybrechts ◽  
Sophie Hendrix ◽  
Lieven Bervoets ◽  
Ann Cuypers ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Cell Cycle Progression ◽  
Leaf Growth ◽  
Cellular Level ◽  
Cycle Duration ◽  
Meristematic Tissue ◽  
Cycle Progression ◽  
Maize Leaf ◽  
Cell Volumes ◽  
Lower Expression

Abstract It is well known that cadmium (Cd) pollution inhibits plant growth, but how this metal impacts leaf growth processes at the cellular and molecular level is still largely unknown. In the current study, we show that Cd specifically accumulates in the meristematic tissue of the growing maize leaf, while Cd concentration in the elongation zone rapidly declines as the deposition rates diminish and cell volumes increase due to cell expansion. A kinematic analysis shows that, at the cellular level, a lower number of meristematic cells together with a significantly longer cell cycle duration explain the inhibition of leaf growth by Cd. Flow cytometry analysis suggests an inhibition of the G1/S transition, resulting in a lower proportion of cells in the S phase and reduced endoreduplication in expanding cells under Cd stress. Lower cell cycle activity is also reflected by lower expression levels of key cell cycle genes (putative wee1, cyclin-B2-4, and minichromosome maintenance4). Cell elongation rates are also inhibited by Cd, which is possibly linked to the inhibited endoreduplication. Taken together, our results complement studies on Cd-induced growth inhibition in roots and link inhibited cell cycle progression to Cd deposition in the leaf meristem.

scholarly journals GROWTH DISTRIBUTION IN THE LIGHT-GROWTH RESPONSE OF PHYCOMYCES

1959 ◽  
Vol 42 (4) ◽  
pp. 697-702 ◽  
Author(s):  
Edward S. Castle
Keyword(s):  
Spatial Distribution ◽  
Steady State ◽  
Growth Response ◽  
Spatial Separation ◽  
Growth Zone ◽  
Starch Grains ◽  
Growth Distribution

Elongation of sporangiophores marked with numerous starch grains was photographically recorded in the steady state and during the light-growth response when the rate is more than doubled. From these records the spatial distribution of growth within the cell's growth zone was derived. Stimulation by a single saturating flash of light speeds growth proportionally in all parts of the growing zone, maintaining the same pattern of growth distribution as in the steady state. This finding implies that light is absorbed and acts locally throughout the length of the cell's growth zone. Cohen and Delbrück's proposal of a partial spatial separation of light reception and growth is discussed.

Phosphorus nutrition and mycorrhiza effects on grass leaf growth. P status- and size-mediated effects on growth zone kinematics

2006 ◽  
Vol 29 (4) ◽  
pp. 511-520 ◽  
Author(s):  
MONIKA KAVANOVA ◽  
AGUSTIN A. GRIMOLDI ◽  
FERNANDO A. LATTANZI ◽  
HANS SCHNYDER
Keyword(s):  
Leaf Growth ◽  
Growth Zone ◽  
Phosphorus Nutrition ◽  
Mediated Effects

scholarly journals Can cell wall peroxidase activity explain the leaf growth response ofLolium temulentumL. during drought?

1997 ◽  
Vol 48 (12) ◽  
pp. 2075-2085 ◽  
Author(s):  
Mark A. Bacon ◽  
David S. Thompson ◽  
William J. Davies
Keyword(s):  
Cell Wall ◽  
Peroxidase Activity ◽  
Growth Response ◽  
Leaf Growth

scholarly journals A Local Maximum in Gibberellin Levels Regulates Maize Leaf Growth by Spatial Control of Cell Division

2012 ◽  
Vol 22 (13) ◽  
pp. 1183-1187 ◽  
Author(s):  
Hilde Nelissen ◽  
Bart Rymen ◽  
Yusuke Jikumaru ◽  
Kirin Demuynck ◽  
Mieke Van Lijsebettens ◽  
...  
Keyword(s):  
Cell Division ◽  
Leaf Growth ◽  
Local Maximum ◽  
Spatial Control ◽  
Maize Leaf

scholarly journals Spatial analysis of the rice leaf growth zone under controlled and cadmium-exposed conditions

2020 ◽  
Vol 177 ◽  
pp. 104120 ◽  
Author(s):  
Michiel Huybrechts ◽  
Sophie Hendrix ◽  
Jonas Bertels ◽  
Gerrit T.S. Beemster ◽  
Dries Vandamme ◽  
...  
Keyword(s):  
Spatial Analysis ◽  
Leaf Growth ◽  
Growth Zone ◽  
Rice Leaf
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