Synergistic Effect of Bacillus thuringiensis IAGS 199 and Putrescine on Alleviating Cadmium-Induced Phytotoxicity in Capsicum annum
文献类型： 外文期刊
作者： Shah, Anis Ali 1 ; Bibi, Fatima 1 ; Hussain, Iqtidar 2 ; Yasin, Nasim Ahmad 3 ; Akram, Waheed 4 ; Tahir, Muhammad S 1 ;
作者机构： 1.Univ Narowal, Dept Bot, Narowal 51801, Pakistan
2.Gomal Univ, Dept Agron, Fac Agr, Dera Ismail Khan 29050, Pakistan
3.Univ Punjab, Off Dept 2, Lahore 54590, Pakistan
4.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangzhou 510640, Peoples R China
5.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Agron, Multan 60800, Pakistan
6.King Saud Univ, Dept Bot & Microbiol, Coll Sci, Riyadh 2455, Saudi Arabia
7.Agr Res Ctr, Inst Hort Res, Timber Trees Res Dept, Sabahia Hort Res Stn, Alexandria 21526, Egypt
8.Alexandria Univ, Fac Agr El Shatby, Forestry & Wood Technol Dept, Alexandria 21545, Egypt
9.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Soil Sci, Multan 60800, Pakistan
10.Hainan Univ, Coll Trop Crops, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou 570228, Hainan, Peoples R China
11.Univ Haripur, Dept Agron, Haripur 22620, Pakistan
12.Mendel Univ Brno, Fac Forestry & Wood Technol, Dept Geol & Pedol, Zemedelska 3, Brno 61300, Czech Republic
关键词： cadmium; Capsicum annum; growth; microbe; priming; putrescine
期刊名称：PLANTS-BASEL （ 2020影响因子：3.935； ）
年卷期： 2020 年 9 卷 11 期
收录情况： SCI
摘要： Plant growth-promoting bacteria (PGPB) and putrescine (Put) have shown a promising role in the mitigation of abiotic stresses in plants. The present study was anticipated to elucidate the potential of Bacillus thuringiensis IAGS 199 and Put in mitigation of cadmium (Cd)-induced toxicity in Capsicum annum. Cadmium toxicity decreased growth, photosynthetic rate, gas exchange attributes and activity of antioxidant enzymes in C. annum seedlings. Moreover, higher levels of protein and non-protein bound thiols besides increased Cd contents were also observed in Cd-stressed plants. B. thuringiensis IAGS 199 and Put, alone or in combination, reduced electrolyte leakage (EL), hydrogen peroxide (H2O2) and malondialdehyde (MDA) level in treated plants. Synergistic effect of B. thuringiensis IAGS 199 and Put significantly enhanced the activity of stress-responsive enzymes including peroxidase (POD), ascorbate peroxidase (APX), catalase (CAT) and superoxide dismutase (SOD). Furthermore, Put and microbial interaction enhanced the amount of proline, soluble sugars, and total soluble proteins in C. annum plants grown in Cd-contaminated soil. Data obtained during the current study advocates that application of B. thuringiensis IAGS 199 and Put establish a synergistic role in the mitigation of Cd-induced stress through modulating physiochemical features of C. annum plants.
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