絞り込み

16643

広告

診療報酬「本体」0.55%引き上げ 前回と同水準 政府方針 (毎日新聞)

麻生太郎副総理兼財務相=川田雅浩撮影 [PR] 政府は13日、2020年度の診療報酬の改定で、医師の技術料にあたる「本体部分」を0・55%引き上げる方針を固めた...

  1. ベースラインctDNA解析での変異の有無...
  2. 脳転移患者も含む多数の治療歴を持つHER...
  3. 手術可能なルミナールB乳癌の術前療法でr...
  4. TNBCの術前化学療法へのペムブロリズマ...

ニュース一覧

Variations in physiological and biochemical traits of oak seedlings grown under drought and ozone stress.

著者 Cotrozzi L , Remorini D , Pellegrini E , Landi M , Massai R , Nali C , Guidi L , Lorenzini G
Physiol Plant.2016 May ; 157(1):69-84.
この記事をPubMed上で見るPubMedで表示
この記事をGoogle翻訳上で見る Google翻訳で開く

スターを付ける スターを付ける     (9view , 0users)

Full Text Sources

Medical

Miscellaneous

Despite the huge biodiversity characterizing the Mediterranean environment, environmental constraints, such as high sunlight and high temperatures alongside with dry periods, make plant survival hard. In addition, high irradiance leads to increasing ozone (O3 ) concentrations in ambient air. In this era of global warming, it is necessary to understand the mechanisms that allow native species to tolerate these environmental constraints and how such mechanisms interact. Three Mediterranean oak species (Quercus ilex, Quercus pubescens and Quercus cerris) with different features (drought tolerant, evergreen or deciduous species) were selected to assess their biometrical, physiological and biochemical responses under drought and/or O3 stress (80-100 nl l(-1) of O3 for 5 h day(-1) for 77 consecutive days). Leaf visible injury appeared only under drought stress (alone or combined with O3 ) in all three species. Drought × O3 induced strong reductions in leaf dry weight in Q. pubescens and Q. cerris (-70 and -75%, respectively). Alterations in physiological (i.e. decrease in maximum carboxylation rate) and biochemical parameters (i.e. increase in proline content and build-up of malondialdehyde by-products) occurred in all the three species, although drought represented the major determinant. Quercus ilex and Q. pubescens, which co-occur in dry environments, were more tolerant to drought and drought × O3 . Quercus ilex was the species in which oxidative stress occurred only when drought was applied with O3 . High plasticity at a biochemical level (i.e. proline content) and evergreen habitus are likely on the basis of the higher tolerance of Q. ilex.
PMID: 26541269 [PubMed - indexed for MEDLINE]
印刷用ページを開く Endnote用テキストダウンロード