干旱区生态环境知识资源中心(Arid): Effect of Three Water Regimes on the Physiological and Anatomical Structure of Stem and Leaves of Different Citrus Rootstocks with Distinct Degrees of Tolerance to Drought Stress

Arid

DOI	10.3390/horticulturae7120554
	Effect of Three Water Regimes on the Physiological and Anatomical Structure of Stem and Leaves of Different Citrus Rootstocks with Distinct Degrees of Tolerance to Drought Stress
	Shafqat, Waqar; Mazrou, Yasser S. A.; Nehela, Yasser; Ikram, Sufian; Bibi, Sana; Naqvi, Summar A.; Hameed, Mansoor; Jaskani, Muhammad Jafar
通讯作者	Jaskani, MJ (corresponding author)，Univ Agr Faisalabad, Inst Hort Sci, Faisalabad 38000, Pakistan. ; Nehela, Y (corresponding author)，Tanta Univ, Fac Agr, Dept Agr Bot, Tanta 31527, Egypt. ; Nehela, Y (corresponding author)，Univ Florida, Citrus Res & Educ Ctr, Dept Plant Pathol, 700 Expt Stn Rd, Lake Alfred, FL 33850 USA.
来源期刊	HORTICULTURAE
EISSN	2311-7524
出版年	2021
卷号	7 期号:12
英文摘要	Citrus is grown globally throughout the subtropics and semi-arid to humid tropics. Abiotic stresses such as soil water deficit negatively affect plant growth, physiology, biochemistry, and anatomy. Herein, we investigated the effect(s) of three water regimes (control, moderate drought, and severe drought) on the physiological and anatomical structure of 10 different citrus rootstocks with different degrees of tolerance to drought stress. Brazilian sour orange and Gadha dahi performed well by avoiding desiccation and maintaining plant growth, plant water status, and biochemical characters, while Rangpur Poona nucellar (C. limonia) and Sunki x bentake were the most sensitive rootstocks at all stress conditions. At severe water stress, the highest root length (24.33 +/- 0.58), shoot length (17.00 +/- 1.00), root moisture content (57.67 +/- 1.53), shoot moisture content (64.59 +/- 1.71), and plant water potential (-1.57 +/- 0.03) was observed in tolerant genotype, Brazilian sour orange. Likewise, chlorophyll a (2.70 +/- 0.06), chlorophyll b (0.87 +/- 0.06) and carotenoids (0.69 +/- 0.08) were higher in the same genotype. The lowest H2O2 content (77.00 +/- 1.00) and highest proline content (0.51 +/- 0.06) were also recorded by Brazilian sour orange. The tolerance mechanism of tolerant genotypes was elucidated by modification in anatomical structures. Stem anatomy at severe drought, 27.5% increase in epidermal cell thickness, 25.4% in vascular bundle length, 30.5% in xylem thickness, 27.7% in the phloem cell area, 8% in the pith cell area, and 43.4% in cortical thickness were also observed in tolerant genotypes. Likewise, leaf anatomy showed an increase of 27.9% in epidermal cell thickness, 11.4% in vascular bundle length, 21% in xylem thickness, and 15% in phloem cell area in tolerant genotypes compared with sensitive ones. These modifications in tolerant genotypes enabled them to maintain steady nutrient transport while reducing the risk of embolisms, increasing water-flow resistance, and constant transport of nutrients across.
英文关键词	drought stress citrus oxidative stress proline photosynthesis water potential vascular bundle modifications
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000737145000001
WOS关键词	XYLEM CONDUIT DIMENSIONS ; CHLOROPHYLL CONTENT ; HEAT-STRESS ; PROLINE ; PLANTS ; VULNERABILITY ; FLUORESCENCE ; INDUCTION ; GROWTH ; TREES
WOS类目	Horticulture
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375781
作者单位	[Shafqat, Waqar] Univ Florida, Indian River Res & Educ Ctr, Dept Hort Sci, 2199 South Rock Rd, Ft Pierce, FL 34945 USA; [Shafqat, Waqar] Mississippi State Univ, Dept Forestry, Starkville, MS 39762 USA; [Mazrou, Yasser S. A.] King Khalid Univ, Community Coll, Business Adm Dept, Abha 62529, Saudi Arabia; [Mazrou, Yasser S. A.] Tanta Univ, Fac Agr, Dept Agr Econ, Tanta 31527, Egypt; [Ikram, Sufian; Naqvi, Summar A.; Jaskani, Muhammad Jafar] Univ Agr Faisalabad, Inst Hort Sci, Faisalabad 38000, Pakistan; [Nehela, Yasser] Tanta Univ, Fac Agr, Dept Agr Bot, Tanta 31527, Egypt; [Nehela, Yasser] Univ Florida, Citrus Res & Educ Ctr, Dept Plant Pathol, 700 Expt Stn Rd, Lake Alfred, FL 33850 USA; [Ikram, Sufian] Chinese Acad Agr Sci, Inst Vegetables & Flowers, 12 Zhongguancun South St, Beijing 100081, Peoples R China; [Bibi, Sana; Hameed, Mansoor] Univ Agr Faisalabad, Dept Bot, Faisalabad 38040, Pakistan
推荐引用方式 GB/T 7714	Shafqat, Waqar,Mazrou, Yasser S. A.,Nehela, Yasser,et al. Effect of Three Water Regimes on the Physiological and Anatomical Structure of Stem and Leaves of Different Citrus Rootstocks with Distinct Degrees of Tolerance to Drought Stress[J],2021,7(12).
APA	Shafqat, Waqar.,Mazrou, Yasser S. A..,Nehela, Yasser.,Ikram, Sufian.,Bibi, Sana.,...&Jaskani, Muhammad Jafar.(2021).Effect of Three Water Regimes on the Physiological and Anatomical Structure of Stem and Leaves of Different Citrus Rootstocks with Distinct Degrees of Tolerance to Drought Stress.HORTICULTURAE,7(12).
MLA	Shafqat, Waqar,et al."Effect of Three Water Regimes on the Physiological and Anatomical Structure of Stem and Leaves of Different Citrus Rootstocks with Distinct Degrees of Tolerance to Drought Stress".HORTICULTURAE 7.12(2021).