干旱区生态环境知识资源中心(Arid): The effect of summer drought on the yield of Arundo donax is reduced by the retention of photosynthetic capacity and leaf growth later in the growing season

Arid

DOI	10.1093/aob/mcy223
	The effect of summer drought on the yield of Arundo donax is reduced by the retention of photosynthetic capacity and leaf growth later in the growing season
	Haworth, Matthew; Marino, Giovanni; Riggi, Ezio; Avola, Giovanni; Brunetti, Cecilia; Scordia, Danilo; Testa, Giorgio; Gaudio Gomes, Marcos Thiago; Loreto, Francesco; Cosentino, Salvatore Luciano; Centritto, Mauro
通讯作者	Haworth, M (corresponding author), Natl Res Council Italy CNR IVALSA, Tree & Timber Inst, Via Madonna del Piano 10, I-50019 Florence, Italy.
来源期刊	ANNALS OF BOTANY
ISSN	0305-7364
EISSN	1095-8290
出版年	2019
卷号	124 期号:4 页码:567-579
英文摘要	Background and Aims The development of Arundo donax as a biomass crop for use on drought-prone marginal lands in areas with warm to hot climates is constrained by the lack of variation within this species. We investigated the effect of morphological and physiological variation on growth and tolerance to drought under field conditions in three ecotypes of A. donax collected from habitats representing a climate gradient: a pre-desert in Morocco, a semi-arid Mediterranean climate in southern Italy and a warm sub-humid region of central Italy. Methods The three A. donax ecotypes were grown under irrigated and rain-fed conditions in a common garden field trial in a region with a semi-arid Mediterranean climate. Physiological and morphological characteristics, and carbohydrate metabolism of the ecotypes were recorded to establish which traits were associated with yield and/ or drought tolerance. Key Results Variation was observed between the A. donax ecotypes. The ecotype from the most arid habitat produced the highest biomass yield. Stem height and the retention of photosynthetic capacity later in the year were key traits associated with differences in biomass yield. The downregulation of photosynthetic capacity was not associated with changes in foliar concentrations of sugars or starch. Rain-fed plants maintained photosynthesis and growth later in the year compared with irrigated plants that began to senescence earlier, thus minimizing the difference in yield. Effective stomatal control prevented excessive water loss, and the emission of isoprene stabilized photosynthetic membranes under drought and heat stress in A. donax plants grown under rain-fed conditions without supplementary irrigation. Conclusions Arundo donax is well adapted to cultivation in drought-prone areas with warm to hot climates. None of the A. donax ecotypes exhibited all of the desired traits consistent with an `ideotype'. Breeding or genetic (identification of quantitative trait loci) improvement of A. donax should select ecotypes on the basis of stem morphology and the retention of photosynthetic capacity.
英文关键词	Photosynthesis bioenergy drought biomass chlorophyll fluorescence common garden
类型	Article
语种	英语
开放获取类型	Green Published, Bronze
收录类别	SCI-E
WOS记录号	WOS:000503881100006
WOS关键词	SOIL-WATER AVAILABILITY ; GIANT REED ; NITROGEN-FERTILIZATION ; ELECTRON-TRANSPORT ; ISOPRENE EMISSION ; HIGH-TEMPERATURES ; LOW CO2 ; L. ; PLANTS ; MISCANTHUS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369574
作者单位	[Haworth, Matthew; Marino, Giovanni; Riggi, Ezio; Avola, Giovanni; Brunetti, Cecilia; Gaudio Gomes, Marcos Thiago; Centritto, Mauro] Natl Res Council Italy CNR IVALSA, Tree & Timber Inst, Via Madonna del Piano 10, I-50019 Florence, Italy; [Brunetti, Cecilia] Univ Florence, Dept Agrifood Prod & Environm Sci DiSPAA, Viale Idee 30, I-50019 Florence, Italy; [Scordia, Danilo; Testa, Giorgio; Cosentino, Salvatore Luciano] Univ Catania, Dipartimento Agr Alimentaz & Ambiente Di3A, Via Valdisavoia 5, I-95123 Catania, Italy; [Gaudio Gomes, Marcos Thiago] Univ Fed Espirito Santo, Ctr Human & Nat Sci, Dept Biol Sci, Ave Fernando Ferrari 514, BR-29075910 Vitoria, ES, Brazil; [Loreto, Francesco] Natl Res Council Italy CNR DiSBA, Dept Biol Agr & Food Sci, Rome, Italy
推荐引用方式 GB/T 7714	Haworth, Matthew,Marino, Giovanni,Riggi, Ezio,et al. The effect of summer drought on the yield of Arundo donax is reduced by the retention of photosynthetic capacity and leaf growth later in the growing season[J],2019,124(4):567-579.
APA	Haworth, Matthew.,Marino, Giovanni.,Riggi, Ezio.,Avola, Giovanni.,Brunetti, Cecilia.,...&Centritto, Mauro.(2019).The effect of summer drought on the yield of Arundo donax is reduced by the retention of photosynthetic capacity and leaf growth later in the growing season.ANNALS OF BOTANY,124(4),567-579.
MLA	Haworth, Matthew,et al."The effect of summer drought on the yield of Arundo donax is reduced by the retention of photosynthetic capacity and leaf growth later in the growing season".ANNALS OF BOTANY 124.4(2019):567-579.