Effects of water retaining agent on carbon-nitrogen metabolism and neutral aroma substances content in cigar tobacco leaves under drought stress

doi:10.3969/j.issn.1004-1524.2022.12.04

Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (12): 2610-2621.DOI: 10.3969/j.issn.1004-1524.2022.12.04

• Crop Science • Previous Articles Next Articles

Effects of water retaining agent on carbon-nitrogen metabolism and neutral aroma substances content in cigar tobacco leaves under drought stress

LI Xinyan¹(), WANG Fangling¹^,², ZHANG Mingyue¹, SHAO Zhihui¹, WANG Jun³, YANG Weili⁴, ZHAO Mingqin¹^,^*()

1. College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
2. Zhushan Tobacco Branch of Shiyan City Tobacco Company of Hubei Province, Zhushan 442200, Hubei, China
3. Deyang City Company of Sichuan Province Tobacco Company, Deyang 618400, Sichuan, China
4. Dazhou City Company of Sichuan Province Tobacco Company, Dazhou 635000, Sichuan, China

Received:2022-03-24 Online:2022-12-25 Published:2022-12-26
Contact: ZHAO Mingqin

Abstract

Abstract:

In order to study the effects of types and dosage of water retaining agents on the carbon and nitrogen metabolism and aroma quality of cigar tobacco leaves under drought stress, Dexue 3 was used as the test material to study the changes of carbon and nitrogen metabolism and neutral aroma components content in cigar tobacco leaves under the effects of types and dosage of water retaining agents (SAP water retaining agent, Wote water retaining agent and self-made water retaining agent) and dosage (2, 4, 6 g per plant). The results showed that: 1) The use of water retaining agent could effectively improve the nitrogen metabolism intensity in the early stage (before 45 days) of cigar tobacco growth and development, accelerate the transformation and accumulation of nitrogen nutrition to nicotine, weaken the nitrogen metabolism intensity in the late stage (after 60 days), and significantly weaken the nicotine accumulation. At 75 days, the nicotine content of each treatment was significantly reduced compared with the control, and the TS-PAA 2 g per plant treatment had the largest reduction, with a decrease of 32.26%. 2) The use of water retaining agent could accelerate the level of carbon metabolism in the middle and late stages (after 45 days), and promote the increase of starch, total sugar and reducing sugar content in cigar tobacco leaves. Among them, TS-PAA 4 g per plant treatment had the highest increase, increasing 327.28%, 80.51% and 79.54%, respectively compared with the control. The sugar base ratio increased by 161.90%, and the two sugar ratios (reducing sugar/total sugar) were maintained at about 0.9. 3) The use of water retaining agent could also significantly delay leaf senescence, improve the drought resistance of tobacco plants, and promote the accumulation of neutral aroma components in cigar tobacco leaves. 4) Under drought stress, the use of water retaining agent was conducive to promoting the reasonable transformation and dynamic balance of carbon and nitrogen metabolism during the growth and development of cigar tobacco leaves, and improving the quality of tobacco leaves. Compared with different treatments, TS-PAA and Wote water retaining agent had the best effect at the dosage of 4 g per plant and SAP water retaining agent at the dosage of 6 g per plant.

Key words: drought stress, water retaining agent, cigar tobacco leaves, carbon-nitrogen metabolism, aroma substances

CLC Number:

S572

LI Xinyan, WANG Fangling, ZHANG Mingyue, SHAO Zhihui, WANG Jun, YANG Weili, ZHAO Mingqin. Effects of water retaining agent on carbon-nitrogen metabolism and neutral aroma substances content in cigar tobacco leaves under drought stress[J]. Acta Agriculturae Zhejiangensis, 2022, 34(12): 2610-2621.

Figures/Tables 10

References 40

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处理 Treatment	保水剂种类 Types of water retention agents	每颗植株保水剂用量 Dosage of water retention agent per plant/g
CK	—	0
T1	TS-PAA	2
T2	TS-PAA	4
T3	TS-PAA	6
T4	SAP	2
T5	SAP	4
T6	SAP	6
T7	沃特Wote	2
T8	沃特Wote	4
T9	沃特Wote	6

处理 Treatment	保水剂种类 Types of water retention agents	每颗植株保水剂用量 Dosage of water retention agent per plant/g
CK	—	0
T1	TS-PAA	2
T2	TS-PAA	4
T3	TS-PAA	6
T4	SAP	2
T5	SAP	4
T6	SAP	6
T7	沃特Wote	2
T8	沃特Wote	4
T9	沃特Wote	6

香气物质名称	CK	T1	T2	T3	T4	T5	T6	T7	T8	T9
Name of aroma substance
苯丙氨酸降解产物Phenylalanine degradation product
苯甲醛Benzaldehyde	1.35	1.43	1.65	1.47	1.35	1.39	1.4	1.49	1.51	1.62
苯甲醇Benzyl alcohol	8.73	8.65	9.01	8.20	8.80	8.80	9.10	9.11	9.57	9.71
苯乙醛Benzaldehyde	11.37	12.13	13.12	12.48	11.86	12.12	12.1	11.77	12.73	12.71
苯乙醇Phenethyl alcohol	4.26	5.09	6.10	5.36	4.21	4.77	5.12	6.11	6.34	5.28
小计Subtotal	25.71	27.30	29.88	27.51	26.22	27.08	27.72	28.48	30.15	29.32
棕色化反应产物Browning reaction products
糠醛Furfural	6.32	7.75	8.03	8.09	6.36	7.01	7.03	7.01	7.45	7.50
糠醇Furfuryl alcohol	1.45	1.65	2.01	1.61	1.46	1.53	1.60	1.80	2.22	2.09
2-乙酰基呋喃2-Acetyl furan	0.01	0.02	0.04	0.01	0.01	0.02	0.04	0.01	0.03	0.04
2-乙酰基吡咯2-Acetyl pyrrole	0.22	0.33	0.45	0.32	0.26	0.27	0.31	0.33	0.38	0.33
3,4-二甲基-2,5-呋喃二酮	0.42	0.52	0.58	0.61	0.46	0.45	0.50	0.52	0.66	0.59
3,4-Dimethyl-2,5-furandione
5-甲基糠醛5-Methylfurfural	0.83	1.00	1.14	0.97	0.88	0.91	1.02	1.01	1.23	1.10
小计Subtotal	9.25	11.27	12.25	11.61	9.43	10.19	10.5	10.68	11.97	11.65
西柏烷类降解产物Sieplane degradation products
茄酮Solanone	30.11	35.33	49.19	42.42	32.05	35.79	42.12	45.13	49.36	40.32
类胡萝卜素降解产物Carotenoid degradation products
巨豆三烯酮1 Giant bean trienone 1	0.49	0.69	0.96	0.79	0.56	0.60	0.63	0.73	0.95	1.01
巨豆三烯酮2 Giant bean trienone 2	3.43	3.79	4.83	4.11	3.46	3.63	3.83	3.82	4.19	3.99
巨豆三烯酮3 Giant bean trienone 3	0.12	0.23	0.36	0.31	0.15	0.16	0.17	0.21	0.23	0.28
巨豆三烯酮4 Giant bean trienone 4	5.39	6.33	7.54	6.87	5.39	5.63	6.11	6.01	7.52	6.78
6-甲基-5-庚烯-2-醇 6-Methyl-5-hepten-2-ol	1.15	1.39	2.32	2.00	1.04	1.33	1.71	1.54	1.85	2.03
6-甲基-5-庚烯-2-酮 6-Methyl-5-hepten-2-one	1.05	1.26	2.05	1.66	1.16	1.51	1.93	1.22	1.29	1.79
异佛尔酮Isophorone	0.11	0.14	0.23	0.20	0.12	0.15	0.19	0.18	0.26	0.29
b-环柠檬醛b-Cyclocitral	0.02	0.06	0.09	0.09	0.06	0.06	0.09	0.06	0.11	0.18
β-大马酮β-Damarone	10.05	11.12	12.01	13.39	10.76	10.78	11.01	11.01	12.34	13.38
β-二氢大马酮 β-Dihydrodamamanone	6.53	6.82	8.61	7.38	6.78	7.01	7.08	6.78	7.01	7.29
香叶基丙酮 Geranyl acetone	2.01	2.49	3.39	2.31	1.92	2.19	2.43	2.45	3.01	3.11
二氢猕猴桃内酯 Dihydrokiwi lactone	3.41	4.18	5.13	3.69	3.19	3.49	3.78	3.86	4.38	4.37
3-羟基-β-二氢大马酮	5.18	6.01	6.67	5.19	5.28	5.98	6.19	5.89	5.65	6.43
3-Hydroxy-β-dihydrodamamanone
法尼基丙酮Farnesylacetone	14.98	16.21	18.21	16.51	16.11	16.52	17.08	16.09	17.69	17.98
小计Subtotal	53.92	60.72	72.40	64.50	55.98	59.04	62.23	59.85	66.48	68.91
叶绿素降解产物Chlorophyll degradation products
新植二烯Neophytadiene	401.16	420.16	483.74	441.01	416.23	430.13	463.23	435.35	498.46	486.16
其他Others
螺岩兰草酮 Spirophromethamine	0.33	0.46	0.56	0.43	0.26	0.37	0.46	0.42	0.43	0.56
芳樟醇 Linalool	3.23	4.02	4.98	4.68	3.58	3.71	4.03	3.67	3.83	4.53
藏花醛 Tibetan anthocherdehyde	0.06	0.20	0.16	0.13	0.06	0.07	0.08	0.10	0.14	0.16
愈创木酚 Guaiacol	0.39	0.49	0.66	0.60	0.47	0.51	0.52	0.51	0.58	0.62
2,6-壬二烯醛 2,6-Nonadienal	0.45	0.51	0.55	0.49	0.46	0.46	0.46	0.49	0.51	0.54
小计Subtotal	4.46	5.68	6.91	6.33	4.83	5.12	5.55	5.19	5.49	6.41
总和(除新植二烯)Sum (except neophytadiene)	123.45	140.30	170.63	152.37	128.51	137.22	148.12	149.33	163.45	156.61

香气物质名称	CK	T1	T2	T3	T4	T5	T6	T7	T8	T9
Name of aroma substance
苯丙氨酸降解产物Phenylalanine degradation product
苯甲醛Benzaldehyde	1.35	1.43	1.65	1.47	1.35	1.39	1.4	1.49	1.51	1.62
苯甲醇Benzyl alcohol	8.73	8.65	9.01	8.20	8.80	8.80	9.10	9.11	9.57	9.71
苯乙醛Benzaldehyde	11.37	12.13	13.12	12.48	11.86	12.12	12.1	11.77	12.73	12.71
苯乙醇Phenethyl alcohol	4.26	5.09	6.10	5.36	4.21	4.77	5.12	6.11	6.34	5.28
小计Subtotal	25.71	27.30	29.88	27.51	26.22	27.08	27.72	28.48	30.15	29.32
棕色化反应产物Browning reaction products
糠醛Furfural	6.32	7.75	8.03	8.09	6.36	7.01	7.03	7.01	7.45	7.50
糠醇Furfuryl alcohol	1.45	1.65	2.01	1.61	1.46	1.53	1.60	1.80	2.22	2.09
2-乙酰基呋喃2-Acetyl furan	0.01	0.02	0.04	0.01	0.01	0.02	0.04	0.01	0.03	0.04
2-乙酰基吡咯2-Acetyl pyrrole	0.22	0.33	0.45	0.32	0.26	0.27	0.31	0.33	0.38	0.33
3,4-二甲基-2,5-呋喃二酮	0.42	0.52	0.58	0.61	0.46	0.45	0.50	0.52	0.66	0.59
3,4-Dimethyl-2,5-furandione
5-甲基糠醛5-Methylfurfural	0.83	1.00	1.14	0.97	0.88	0.91	1.02	1.01	1.23	1.10
小计Subtotal	9.25	11.27	12.25	11.61	9.43	10.19	10.5	10.68	11.97	11.65
西柏烷类降解产物Sieplane degradation products
茄酮Solanone	30.11	35.33	49.19	42.42	32.05	35.79	42.12	45.13	49.36	40.32
类胡萝卜素降解产物Carotenoid degradation products
巨豆三烯酮1 Giant bean trienone 1	0.49	0.69	0.96	0.79	0.56	0.60	0.63	0.73	0.95	1.01
巨豆三烯酮2 Giant bean trienone 2	3.43	3.79	4.83	4.11	3.46	3.63	3.83	3.82	4.19	3.99
巨豆三烯酮3 Giant bean trienone 3	0.12	0.23	0.36	0.31	0.15	0.16	0.17	0.21	0.23	0.28
巨豆三烯酮4 Giant bean trienone 4	5.39	6.33	7.54	6.87	5.39	5.63	6.11	6.01	7.52	6.78
6-甲基-5-庚烯-2-醇 6-Methyl-5-hepten-2-ol	1.15	1.39	2.32	2.00	1.04	1.33	1.71	1.54	1.85	2.03
6-甲基-5-庚烯-2-酮 6-Methyl-5-hepten-2-one	1.05	1.26	2.05	1.66	1.16	1.51	1.93	1.22	1.29	1.79
异佛尔酮Isophorone	0.11	0.14	0.23	0.20	0.12	0.15	0.19	0.18	0.26	0.29
b-环柠檬醛b-Cyclocitral	0.02	0.06	0.09	0.09	0.06	0.06	0.09	0.06	0.11	0.18
β-大马酮β-Damarone	10.05	11.12	12.01	13.39	10.76	10.78	11.01	11.01	12.34	13.38
β-二氢大马酮 β-Dihydrodamamanone	6.53	6.82	8.61	7.38	6.78	7.01	7.08	6.78	7.01	7.29
香叶基丙酮 Geranyl acetone	2.01	2.49	3.39	2.31	1.92	2.19	2.43	2.45	3.01	3.11
二氢猕猴桃内酯 Dihydrokiwi lactone	3.41	4.18	5.13	3.69	3.19	3.49	3.78	3.86	4.38	4.37
3-羟基-β-二氢大马酮	5.18	6.01	6.67	5.19	5.28	5.98	6.19	5.89	5.65	6.43
3-Hydroxy-β-dihydrodamamanone
法尼基丙酮Farnesylacetone	14.98	16.21	18.21	16.51	16.11	16.52	17.08	16.09	17.69	17.98
小计Subtotal	53.92	60.72	72.40	64.50	55.98	59.04	62.23	59.85	66.48	68.91
叶绿素降解产物Chlorophyll degradation products
新植二烯Neophytadiene	401.16	420.16	483.74	441.01	416.23	430.13	463.23	435.35	498.46	486.16
其他Others
螺岩兰草酮 Spirophromethamine	0.33	0.46	0.56	0.43	0.26	0.37	0.46	0.42	0.43	0.56
芳樟醇 Linalool	3.23	4.02	4.98	4.68	3.58	3.71	4.03	3.67	3.83	4.53
藏花醛 Tibetan anthocherdehyde	0.06	0.20	0.16	0.13	0.06	0.07	0.08	0.10	0.14	0.16
愈创木酚 Guaiacol	0.39	0.49	0.66	0.60	0.47	0.51	0.52	0.51	0.58	0.62
2,6-壬二烯醛 2,6-Nonadienal	0.45	0.51	0.55	0.49	0.46	0.46	0.46	0.49	0.51	0.54
小计Subtotal	4.46	5.68	6.91	6.33	4.83	5.12	5.55	5.19	5.49	6.41
总和(除新植二烯)Sum (except neophytadiene)	123.45	140.30	170.63	152.37	128.51	137.22	148.12	149.33	163.45	156.61

Effects of water retaining agent on carbon-nitrogen metabolism and neutral aroma substances content in cigar tobacco leaves under drought stress

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