Organic amendments improve salinity-induced osmotic and oxidative stress tolerance in Okra (Abelmoschus esculentus (L.)Moench)

被引：4

作者：

Naseem, Alia ^{[1
]}

Iqbal, Sumera ^{[1
]}

Jabeen, Khajista ^{[1
]}

Umar, Aisha ^{[1
,2
]}

Alharbi, Khadiga ^{[3
]}

Antar, Mohammed ^{[4
]}

Gradecka-Jakubowska, Katarzyna ^{[5
]}

Gancarz, Marek ^{[5
,6
]}

Ali, Iftikhar ^{[7
,8
,9
]}

机构：

[1] Lahore Coll Women Univ, Dept Bot, Lahore, Pakistan

[2] Univ Punjab, Inst Bot, Lahore, Pakistan

[3] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Biol, POB 84428, Riyadh 11671, Saudi Arabia

[4] McGill Univ, Dept Plant Sci, Ste Anne De Bellevue, PQ H9X 3V9, Canada

[5] Agr Univ Krakow, Fac Prod & Power Engn, Balicka 116B, PL-30149 Krakow, Poland

[6] Polish Acad Sci, Inst Agrophys, Doswiadczalna 4, PL-20290 Lublin, Poland

[7] Columbia Univ, Irving Med Ctr, Dept Genet & Dev, New York, NY 10032 USA

[8] Chinese Univ Hong Kong, Sch Life Sci, Shatin, Hong Kong, Peoples R China

[9] Chinese Univ Hong Kong, Ctr Novel Biomat, Shatin, Hong Kong, Peoples R China

来源：

BMC PLANT BIOLOGY | 2023年 / 23卷 / 01期

关键词：

Okra; Organic amendments; Salinity stress; Compost; Farmyard manure; Press mud; SALT STRESS; GROWTH; PLANTS; PEROXIDASE; METABOLISM; GENOTYPE; CAPACITY; IMPACT; SUGARS; MAIZE;

D O I：

10.1186/s12870-023-04527-x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Aims Salinity adversely affects okra [Abelmoschus esculentus (L.) Moench] plants by inducing osmotic and oxidative stresses. This study was designed to enhance salinity-induced osmotic and oxidative stress tolerance in okra plants by applying organic amendments.Methods The effects of different organic amendments (municipal solid waste compost, farmyard manure (FYM) and press mud) on osmotic potential, water use efficiency, activities of antioxidant enzymes, total soluble sugar, total soluble proline, total soluble protein and malondialdehyde (MDA) contents of okra plants grown under saline conditions (50 mM sodium chloride) were evaluated in a pot experiment. The organic amendments were applied each at the rate of 5% and 10% per pot or in various combinations (compost + FYM, FYM + press mud and compost + press mud each at the rate of 2.5% and 5% per pot).Results As compared to control, high total soluble sugar (60.41), total soluble proline (33.88%) and MDA (51%) contents and increased activities of antioxidant enzymes [superoxide dismutase (83.54%), catalase (78.61%), peroxidase (53.57%] in salinity-stressed okra plants, were indicative of oxidative stress. Salinity significantly reduced the osmotic potential (41.78%) and water use efficiency (4.75%) of okra plants compared to control. Under saline conditions, 5% (farmyard manure + press mud) was the most effective treatment, which significantly improved osmotic potential (27.05%), total soluble sugar (4.20%), total soluble protein (73.62%) and total soluble proline (23.20%) contents and superoxide dismutase activity (32.41%), compared to saline soil. Application of 2.5% (FYM + press mud), 5% press mud, and 10% compost significantly reduced MDA content (27%) and improved activities of catalase (38.64%) and peroxidase (48.29%), respectively, compared to saline soil, thus facilitated to alleviate oxidative stress in okra plants.Conclusions Using organic amendments (municipal solid waste compost, farmyard manure and press mud) was a cost-effective approach to improve salinity-induced osmotic and oxidative stress tolerance in okra plants.

引用

页数：15

共 65 条

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