期刊文献+

二次检索

题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

年份

学科

共找到2篇文章
< 1 >
每页显示 20 50 100
Red-leafed species for urban“greening”in the age of global climate change 被引量:1
1
作者 Ermes Lo Piccolo Marco Landi 《Journal of Forestry Research》 SCIE CAS CSCD 2021年第1期151-159,共9页
Urban trees provide vital ecosystem services such as mitigating heat island,improving air quality by removing various air pollutants,capturing rainwater,and acting as topsoil carbon storage.The aesthetic value of urba... Urban trees provide vital ecosystem services such as mitigating heat island,improving air quality by removing various air pollutants,capturing rainwater,and acting as topsoil carbon storage.The aesthetic value of urban trees is also another feature that has to be considered in the context of urban greening.Classical criteria for the selection of urban trees have to respond to new challenges imposed to the cities in a near future.Global climate change factors increase the harshness of our cities,and thereby the plant resilience to abiotic stresses has also to be seriously considered for planning the urban greening.Red-leafed species,characterized by the permanent presence of foliar anthocyanins,show a greater tolerance to diff erent environmental cues than green-leafed species commonly used in our cities.In addition,red tree species own a great aesthetic value which has been underestimated in the context of urban areas,especially in the harsh Mediterranean cities.In this study,we emphasize the“privilege of being red”from diff erent point of view,in order to drive the attention to the possibility to increase the use of red-leafed species for urban“greening”.Some possible negative aspects related to their use are rebutted and the direction of future researches are proposed. 展开更多
关键词 Abiotic stress ANTHOCYANIN Ecosystem service PHOTOPROTECTION Urban forestry
下载PDF
Diff erences in pigment circadian rhythmicity in greenand red-leafed tree species in the sun and shade
2
作者 Ermes Lo Piccolo Giulia Lauria +5 位作者 Giulia Bongi Lucia Guidi Marian Brestic Damiano Remorini Rossano Massai Marco Landi 《Journal of Forestry Research》 SCIE CAS CSCD 2023年第3期693-704,共12页
Light fl ux and quality are crucial factor for setting endogenous plant circadian rhythms.Evaluating the daily rhythmicity of leaf chlorophyll content is an eff ective method to monitor the plant physiological endogen... Light fl ux and quality are crucial factor for setting endogenous plant circadian rhythms.Evaluating the daily rhythmicity of leaf chlorophyll content is an eff ective method to monitor the plant physiological endogenous clock in response to environmental signals such as light availability/quality.Here,we used a leaf-clip sensor to monitor diurnal rhythms in the content of chlorophyll and fl avonoids such as fl avonols and anthocyanins in three green-(Ailanthus altissima,Tilia platyphyllos and Platanus×acerifolia)and two red-leafed(Acer platanoides cv.Crimson King and Prunus cerasifera var.pissardii)tree species,adapted to sun(L)or shade(S).Signifi cant diff erences in chlorophyll content(Chl)and its variations during the day were observed among treatments in all the analyzed species.S-plants had more Chl than L-plants irrespective of leaf color,and Chl variations were more distinct during the day than in L-plants.In particular,contents were lowest in the morning(9:00)and in the middle of the day(at 12:00 and 15:00),and the highest at dusk(21:00).The less evident trends in Chl variation in L-plants were attributed to a decrease in Chl content in high light,which likely masked any increases in the shaded counterparts during the afternoon.Daily fl avonol levels did not vary no notably during the day.In sun-exposed red leaves,anthocyanins partially screened mesophyll cells from incident light,and its levels were similar to the Chl dynamics in the shaded counterparts.This study provides new bases for further work on endogenous rhythms of plant pigments and improves our understanding of plant physiology in the context of day/night rhythmicity. 展开更多
关键词 Anthocyanins Chlorophylls Circadian clock FLAVONOLS Shade syndrome
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部