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

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%.

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DIFFERENTIAL PARASITISM OF MACROLEPIDOPTERAN HERBIVORES ON TWO DECIDUOUS TREE SPECIES

Ecology ◽

10.1890/0012-9658(2001)082[0698:dpomho]2.0.co;2 ◽

2001 ◽

Vol 82 (3) ◽

pp. 698-704 ◽

Cited By ~ 32

Author(s):

P. Barbosa ◽

A. E. Segarra ◽

P. Gross ◽

A. Caldas ◽

K. Ahlstrom ◽

...

Keyword(s):

Tree Species ◽

Deciduous Tree ◽

Differential Parasitism

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A Study on Distribution and Growing Situation of Four Broad-Leaved Deciduous Tree Species in Urban Forest Reserve

Journal of The Japanese Institute of Landscape Architecture ◽

10.5632/jila.64.529 ◽

2000 ◽

Vol 64 (5) ◽

pp. 529-532 ◽

Cited By ~ 2

Author(s):

Daisuke MAEHARA ◽

Toshinori SHIGEMATSU

Keyword(s):

Tree Species ◽

Urban Forest ◽

Deciduous Tree ◽

Forest Reserve

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The Draft Genome Assembly of the Critically Endangered Nyssa yunnanensis, a Plant Species with Extremely Small Populations Endemic to Yunnan Province, China

10.20944/preprints202005.0417.v1 ◽

2020 ◽

Author(s):

Weixue Mu ◽

Jinpu Wei ◽

Ting Yang ◽

Yannan Fan ◽

Le Cheng ◽

...

Keyword(s):

Plant Species ◽

Tree Species ◽

Yunnan Province ◽

De Novo ◽

Higher Plants ◽

Draft Genome ◽

Critically Endangered ◽

Deciduous Tree ◽

Conservation Strategies ◽

Small Populations

Nyssa yunnanensis is a deciduous tree in family Nayssaceae within the order Cornales. As only 8 individuals in 2 sites recorded in Yunnan province of China, the species was listed as the China’s national grade-I protection species in 1999, and also as one of 120 PSESP(Plant Species with Extremely Small Populations) in Implementation Plan of Rescuing and Conserving China’s Plant Species with extremely Small Populations(PSESP) (2011-2-15). N. yunnanensis was also been evaluated as Critically Endangered in IUCN red list and Threatened Species List of China's Higher Plants. Hence understanding the genomic characteristics of this highly endangered Tertiary relict tree species is essential, especially for developing conservation strategies. Here we sequenced and annotated the genome of N. yunnanensis using 10X genomics linked-reads sequencing data. The de novo assembled genome is 1474Mb in length with a scaffold N50 length of 985.59kb. We identified 823.51Mb of non-redundant sequence as repetitive elements and annotated 39,803 protein-coding genes in the assembly. Our result provided the genomic characteristics of N. yunnanensis, which will provide valuable resources for future genomic and evolutionary studies, especially for conservation biology studies of this extremely threatened tree species.

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Warming increases the sensitivity of seedling growth capacity to rainfall in six temperate deciduous tree species

AoB Plants ◽

10.1093/aobpla/ply003 ◽

2018 ◽

Vol 10 (1) ◽

Cited By ~ 8

Author(s):

Vikki L Rodgers ◽

Nicholas G Smith ◽

Susanne S Hoeppner ◽

Jeffrey S Dukes

Keyword(s):

Seedling Growth ◽

Tree Species ◽

Deciduous Tree ◽

Growth Capacity ◽

Temperate Deciduous

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Current state and resilience of three main tree species in southern Germany with regard to drier and hotter weather conditions over the past 50 years

10.5194/egusphere-egu21-11087 ◽

2021 ◽

Author(s):

Annette Debel ◽

Achim Bräuning

Keyword(s):

Tree Species ◽

Summer Precipitation ◽

Weather Conditions ◽

Deciduous Tree ◽

Response Analysis ◽

Climate Modelling ◽

Forest Site ◽

Southern Germany ◽

The Past ◽

Current State

Latest drought events and their already visible damage to trees highlight the crucial need to assess the current state and resilience of forest ecosystems in southern Germany. However, commonly applied dendroclimatic approaches rarely take into account, how weather patterns affecting trees are modified by topographic conditions. For this purpose, three main tree species were studied at three low mountain ranges and three corresponding basins in the topographically complex province of Bavaria (southeast Germany). A response analysis between climate proxies and tree-ring widths was used to investigate climate-growth relationships over the past 50 years of both coniferous and deciduous tree species at each forest site. Temporal stability of tree responses to climate was compared for two 25-year periods to detect possible modifications in climate-growth correlations. A pointer year analysis was also conducted to analyze tree response to climatic extreme events. The results showed that Scots pine (Pinus sylvestris) was the most vulnerable and least drought-resistant of the investigated tree species. Although Norway spruce (Picea abies) and European beech (Fagus sylvatica) benefited from an extended growing season at high elevation sites, they showed higher drought sensitivity over the past 25 years. Beech responses were rather inhomogeneous and even differed in the optimal precipitation period. However, lower correlation coefficients for summer precipitation at the driest site may indicate the ability of beech to adapt to less summer precipitation. Nevertheless, increasing drought frequency, as predicted, poses a serious threat to all studied tree species, including even the colder and more humid sites. Hence, to more accurately estimate risk potentials under future weather conditions, we will combine dendroclimatological results with climate modelling scenarios, particularly expected future frequencies of critical weather types on the local scale.

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