Anatomical and Physiological Performance of Jojoba Treated with Proline under Salinity Stress Condition

被引：10

作者：

Aboryia, M. S. ^{[1
]}

El-Dengawy, El-Refaey F. A. ^{[1
]}

El-Banna, Mostafa F. ^{[2
]}

El-Gobba, Mervat H. ^{[1
]}

Kasem, Mahmoud M. ^{[3
]}

Hegazy, Ahmed A. ^{[3
]}

Hassan, Heba Metwally ^{[4
]}

El-Yazied, Ahmed Abou ^{[5
]}

El-Gawad, Hany G. Abd ^{[5
]}

Al-Qahtani, Salem Mesfir ^{[6
]}

Al-Harbi, Nadi Awad ^{[6
]}

Dessoky, Eldessoky S. ^{[7
]}

Ismail, Ismail A. ^{[7
]}

El-Mogy, Mohamed M. ^{[8
]}

EL-Boraie, El-Sayed A. ^{[9
]}

机构：

[1] Damietta Univ, Dept Pomol, Fac Agr, Dumyat 34517, Egypt

[2] Mansoura Univ, Dept Agr Bot, Fac Agr, Mansoura 35516, Egypt

[3] Mansoura Univ, Vegetable & Floriculture Dept, Fac Agr, Mansoura 35516, Egypt

[4] Ain Shams Univ, Dept Bot, Fac Sci, Cairo 11566, Egypt

[5] Ain Shams Univ, Dept Hort, Fac Agr, Cairo 11566, Egypt

[6] Tabuk Univ, Univ Coll Tayma, Dept Biol, POB 741, Tabuk 47512, Saudi Arabia

[7] Cairo Univ, Dept Vegetable Crops, Fac Agr, Giza 12613, Egypt

[8] Cairo Univ, Dept Vegetable Crops, Fac Agr, Giza 12613, Egypt

[9] Damietta Univ, Vegetable & Floriculture Dept, Fac Agr, Dumyat 34517, Egypt

来源：

HORTICULTURAE | 2022年 / 8卷 / 08期

关键词：

jojoba; proline; malondialdehyde; total phenolic content; climate change; seawater; salt stress; ion leakage; INDUCED OXIDATIVE STRESS; CUCUMIS-MELO L; EXOGENOUS PROLINE; SALT-STRESS; ENZYME-ACTIVITY; CHLOROPHYLL-A; GAS-EXCHANGE; NITRIC-OXIDE; VICIA-FABA; WATER;

D O I：

10.3390/horticulturae8080716

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

A field trial study was conducted for two consecutive seasons 2020 and 2021 in approximately 8-month-old jojoba plants to evaluate the physiological responses following salt treatment and the role of proline as a foliar application to enhance jojoba tolerance to salinity stress. Jojoba plants were irrigated once a week for four months with diluted seawater in concentrations of 5000, 10,000, and 15,000 ppm and tap water (control). Anti-stress proline was applied four times throughout the experiment, the first at the beginning of the experiment and another three times at 30-day intervals, at concentrations of 0, 300, and 450 ppm. The effect of proline treatments on jojoba plant behavior includes growth vegetative characteristics, namely plant height increase percentage (PHIP), shoot number increase percentage (NSIP), stem diameter increase percentage (SDIP), number of leaves, leaf thickness, leaf area, and fresh and dry weights of leaves, and chemical characteristics, namely chlorophyll a and b, total chlorophyll, carotenoids, leaf mineral contents (N, P, K, Na, and Cl), total phenolic content (TPC), and proline concentration. Moreover, the impacts of proline on hydrogen peroxide (H2O2), superoxide anion (O-2(center dot-)), malondialdehyde (MDA), and ion leakage (IL) under salinity stress were investigated. Briefly, proline at 450 ppm enhanced all studied growth and physiological characteristics and promoted the antioxidant system of jojoba plants compared with the control and other treatments. The anatomical structure of leaves was also examined, and favorable variations in the anatomical structure were detected in the stressed and proline-treated plants. Exogenous application of proline enhanced most of this anatomical characteristic of jojoba leaf under saline stress. In conclusion, proline as a foliar application at 450 ppm under salinity stress of 10,000 ppm enhances jojoba tolerance to salinity stress by modifying the physicochemical and morphological characteristics of jojoba plants.

引用

页数：27

共 95 条

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