Effects of leaf age on internal CO2 transfer conductance and photosynthesis in tree species having different types of shoot phenology

2001 ◽  
Vol 28 (11) ◽  
pp. 1075 ◽  
Author(s):  
Yuko T. Hanba ◽  
Shin-Ichi Miyazawa ◽  
Hiroyuki Kogami ◽  
Ichiro Terashima
Keyword(s):  
Tree Species ◽  
Leaf Age ◽  
High Irradiance ◽  
Deciduous Tree ◽  
Mesophyll Cells ◽  
Different Types ◽  
Internal Co2 ◽  
Transfer Conductance ◽  
Shoot Phenology ◽  
Acer Mono

We examined the changes in leaf anatomy and some physiological characteristics during leaf expansion and maturation. Three deciduous tree species having different types of shoot phenology, maple (Acer mono Maxim.; ‘flush’ type), alder (Alnus japonica(Thunb.) Steud.; ‘successive’ type), and Japanese poplar (Populus maximowiczii A. Henry; ‘successive’ type), were studied. Leaf CO 2 assimilation rate at high irradiance (P max) and CO 2 transfer conductance inside the leaf (g i) varied significantly with leaf development. There were strong positive relationships between P max) and g i for all of the species. The variations in g i were partly related to those in the surface area of chloroplasts facing the intercellular airspaces, while some other factors that related to liquid phase conductance may also contribute to the variation in g i . The developments of mesophyll cells were accompanied by the concomitant increase in chloroplast and Rubisco content in Alnus and Populus (successive types).

Seasonal changes in chlorine and methoxyl content of leaves of deciduous trees and their impact on release of chloromethane and methanol at elevated temperatures

2015 ◽  
Vol 12 (4) ◽  
pp. 426 ◽  
Author(s):  
W. Colin McRoberts ◽  
Frank Keppler ◽  
David B. Harper ◽  
John T. G. Hamilton
Keyword(s):  
Biomass Burning ◽  
Tree Species ◽  
Seasonal Changes ◽  
Elevated Temperatures ◽  
Stratospheric Ozone ◽  
Leaf Age ◽  
Chloride Ion ◽  
Deciduous Tree ◽  
Growing Seasons ◽  
Norway Maple

Environmental context Chloromethane is the most abundant naturally produced chlorine-containing organic compound, responsible for ~16% of chlorine-catalysed stratospheric ozone destruction. A significant source of this gas is emission from biomass by reaction between chloride ion and methoxyl groups of the biopolymers pectin and lignin. The seasonal changes in the chlorine and methoxyl pools observed in leaves of several deciduous tree species have implications for understanding chlorine volatilisation during biomass burning and estimation of the global chloromethane budget. Abstract Atmospheric chloromethane (CH3Cl) plays a role in the destruction of stratospheric ozone. Previous studies suggest an important source of this gas is emission from leaves and leaf litter at ambient and elevated (150–350°C) temperatures. In this study, the total chlorine and OCH3 content of leaves of the deciduous temperate tree species ash, beech, Norway maple and oak were measured throughout the 2004 and 2005 growing seasons. The total chlorine content increased with leaf age. The overall seasonal accumulation varied between five- and twenty-one fold, dependent on both year and species. Throughout the 2004 growing season, the OCH3 pool and the release of CH3Cl and methanol (CH3OH) from leaves of ash and Norway maple were monitored on heating to 350°C. The amounts of CH3Cl released increased linearly as leaf chlorine accumulated whereas emissions of CH3OH did not substantially change. Conversion of chlorine to CH3Cl was lower in the spring than during the summer and autumnal senescence period, ranging from 22 to 58%. No correlation was found between leaf OCH3 content and either CH3Cl or CH3OH release. The percentage conversion of OCH3 to the summed concentrations of CH3OH and CH3Cl ranged from 41 to 66%. The plant components pectin and lignin were identified as two major sources of the CH3 group in CH3Cl and CH3OH and emissions ceased when the OCH3 pool contributing the methyl moiety was exhausted (>350°C). These findings have implications for estimation of CH3Cl release during biomass burning and for our understanding of chlorine volatilisation during energy production from biomass.

Purification of plasma membranes from leaves of conifer and deciduous tree species by phase partitioning and free-flow electrophoresis

1995 ◽  
Vol 95 (3) ◽  
pp. 399-408 ◽  
Author(s):  
Elena Toll ◽  
Federico J. Castillo ◽  
Pierre Crespi ◽  
Michele Crevecoeur ◽  
Hubert Greppin
Keyword(s):  
Tree Species ◽  
Plasma Membranes ◽  
Free Flow ◽  
Deciduous Tree ◽  
Phase Partitioning

Effect of three different types of biochars on eco-physiological response of important agroforestry tree species under salt stress

2021 ◽  
pp. 1-11
Author(s):  
Muhammad Talha Bin Yousaf ◽  
Muhammad Farrakh Nawaz ◽  
Muhammad Zia ur Rehman ◽  
Sadaf Gul ◽  
Ghulam Yasin ◽  
...  
Keyword(s):  
Salt Stress ◽  
Tree Species ◽  
Physiological Response ◽  
Different Types

Differences between height- and light-dependent changes in shoot traits in five deciduous tree species

Oecologia ◽  
2013 ◽  
Vol 174 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Noriyuki Osada ◽  
Yoshihiko Okabe ◽  
Daisuke Hayashi ◽  
Tomonori Katsuyama ◽  
Naoko Tokuchi
Keyword(s):  
Tree Species ◽  
Deciduous Tree

How anatomical and morphological characteristics affect the flexural properties of two angiosperm species at the sapling stage

BioResources ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 5843-5858
Author(s):  
Seray Özden Keleş
Keyword(s):  
Tree Species ◽  
Ring Width ◽  
Morphological Characteristics ◽  
Deciduous Tree ◽  
Flexural Properties ◽  
Functional Stability ◽  
Growth Stability ◽  
Fagus Orientalis Lipsky ◽  
Angiosperm Species ◽  
Common Oak

The sapling stage is an important phase due to maintaining plant growth, stability, and survival over the life cycle of trees. However, there are limited investigations in the literature related to both growth and stability of different tree species. This study thus investigated how different tree species at the sapling stage showed different anatomical, morphological, and flexural traits despite being of similar age and growing under the same environmental conditions. The variation of sapling properties was determined in two deciduous tree species: common oak (Quercus robur L.) and Oriental beech (Fagus orientalis Lipsky). The results of anatomical and morphological measurements showed that the highest average values of ray length, ray width, pith radius, pith%, bark%, and node numbers were obtained in oak saplings, whereas average ring width, number of rays, and wood% were found to be higher in beech saplings. Oak also exhibited better functional stability in its saplings. The flexural properties were almost 60% greater in oak stems than beech stems. The variations in flexural properties were explained by the morphological and anatomical traits since stability was positively correlated with pith radius, pith%, and bark% and negatively correlated with the number of rays and wood%.

DIFFERENTIAL PARASITISM OF MACROLEPIDOPTERAN HERBIVORES ON TWO DECIDUOUS TREE SPECIES

Ecology ◽  
2001 ◽  
Vol 82 (3) ◽  
pp. 698-704 ◽  
Author(s):  
P. Barbosa ◽  
A. E. Segarra ◽  
P. Gross ◽  
A. Caldas ◽  
K. Ahlstrom ◽  
...  
Keyword(s):  
Tree Species ◽  
Deciduous Tree ◽  
Differential Parasitism

scholarly journals Response of Chinese Tallow (Triadica sebifera) and Coexisting Natives to Competition, Shade, and Flooding

2021 ◽  
Author(s):  
Olaniyi O Ajala ◽  
Kathryn R Kidd ◽  
Brian P Oswald ◽  
Yuhui Weng ◽  
Jeremy P Stovall
Keyword(s):  
Tree Species ◽  
Native Species ◽  
High Irradiance ◽  
Total Biomass ◽  
Green Ash ◽  
Lower Growth ◽  
Triadica Sebifera ◽  
Chinese Tallow ◽  
Growth Metrics ◽  
Water Tupelo

Abstract A greenhouse experiment was designed to determine the interactive effect of light, flooding, and competition on the growth and performance of Chinese tallow (Triadica sebifera [L.] Roxb.) and three tree species native to the southeastern United States: water tupelo (Nyssa aquatica L.), sugarberry (Celtis occidentalis L.), and green ash (Fraxinus pennsylvanica Marshall). The experiment used a factorial design that received two treatments: light (low irradiance or high irradiance) and flood (nonflooded and flooded) regimes. In the nonflooded and high irradiance treatment, changes in the growth (ground diameter, number of leaves, and total biomass) indicated that growth metrics of tallow were highest when growing with sugarberry and water tupelo but decreased when tallow was in competition with green ash. In contrast, competition with tallow reduced the height, net photosynthetic rate, stomatal conductance, and transpiration rate of water tupelo. The results showed that tallow had lower growth metrics when in competition with green ash at no apparent decrease in the growth of green ash except for growth rate. Our results suggest that tallow may be less competitive with certain native species and underplanting may be a possible opportunity for improving the success rates of native trees species establishment in areas prone to tallow invasion. Study Implications: Chinese tallow is a highly invasive tree species in the southeastern coastal states and in this study, we examined the growth and survival of tallow in competition with tree species native to the southeastern coastal states, USA. The growth of tallow differed greatly among native species in well-drained environments lacking forest overstory with lower growth metrics when grown with green ash but higher growth metrics when grown with water tupelo and sugarberry. Following density reduction treatments, we recommend management actions that promote the regeneration of native tree species to occupy the open vegetation canopy and suppress reestablishment of tallow.

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