Study on Anatomical Structure Characteristics and Drought Resistance of Five Species of Lonicera japonica Leaves

doi:10.11924/j.issn.1000-6850.casb2024-0793

Abstract

Abstract:

The paper aims to explore the optimization of planting structure in gravel-mulched land in Ningxia. Lonicera ‘Four Seasons’, Lonicera gaponice, Lonicera ‘Beihua 1’, Lonicera ‘Pingyi’ and Lonicera ‘Jiufeng1’ were used as the main research materials, the leaf anatomical structures of five Lonicera japonica were observed and compared using scanning electron microscopy, anatomical structure and drought resistance of five honeysuckle varieties were studied. The results showed that: (1) the upper epidermis thickness, lower epidermis thickness and cuticle thickness of Lonicera ‘Beihua 1’ were 38.30, 15.90 and 6.60 μm, respectively, which were significantly higher than those of other varieties. (2) The stomatal density and length and width of five kinds of honeysuckle from high to low were Lonicera ‘Beihua 1’, Lonicera ‘Four Seasons’, Lonicera gaponice, Lonicera ‘Pingyi’ and Lonicera ‘Jiufeng 1’. Lonicera ‘Beihua 1’ was significantly higher than other varieties. (3) The leaf vein density of Lonicera ‘Beihua 1’ was the smallest, and the main vein thickness was the largest, which was significantly different from other varieties. (4) The mesophyll thickness and sponge tissue thickness of Lonicera ‘Beihua 1’ were the highest of 222.6 and 107.7 μm, which were 1.26 and 1.16 times of Lonicera ‘Four Seasons’, 1.22 and 1.32 times of Lonicera gaponice, 1.34 and 1.63 times of Lonicera ‘Pingyi’, 1.6 and 1.69 times of Lonicera ‘Jiufeng1’, respectively. In summary, Lonicera ‘Beihua 1’ has the strongest drought resistance, and the drought resistance of Lonicera ‘Pingyi’ and Lonicera ‘Jiufeng 1’ is relatively weak. When introducing honeysuckle varieties in Ningxia gravel-mulched land, priority should be given to Lonicera ‘Beihua 1’.

Key words: gravel-mulched land, Lonicera japonica, foliar, vein, stomata, anatomical structure, palisade tissue, spongy tissue, drought resistance

WANG Caiyan, PAN Zhanbing, ZUO Zhong, HUANG Ting, YANG Hui, YANG Yichun, ZHANG Xinxue. Study on Anatomical Structure Characteristics and Drought Resistance of Five Species of Lonicera japonica Leaves[J]. Chinese Agricultural Science Bulletin, 2025, 41(16): 68-74.

Figures/Tables 8

References 28

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植物种类	上表皮厚度	下表皮厚度	角质层厚度
四季金银花	31.40±1.75Bb	12.60±2.55ABab	4.80±0.68Bb
红色金银花	25.40±1.63BCc	11.90±1.53ABCb	2.80±0.48Cc
平邑山花子金银花	23.10±4.28Cc	7.90±1.36Cc	2.40±0.36Cc
‘北花1号’金银花	38.30±4.72Aa	15.90±5.33Aa	6.60±1.67Aa
‘九丰1号’金银花	22.50±2.67Cc	8.20±1.08BCc	2.50±0.52Cc

植物种类	上表皮厚度	下表皮厚度	角质层厚度
四季金银花	31.40±1.75Bb	12.60±2.55ABab	4.80±0.68Bb
红色金银花	25.40±1.63BCc	11.90±1.53ABCb	2.80±0.48Cc
平邑山花子金银花	23.10±4.28Cc	7.90±1.36Cc	2.40±0.36Cc
‘北花1号’金银花	38.30±4.72Aa	15.90±5.33Aa	6.60±1.67Aa
‘九丰1号’金银花	22.50±2.67Cc	8.20±1.08BCc	2.50±0.52Cc

植物种类	气孔长/μm	气孔宽/μm	气孔密度/(个/mm²)
四季金银花	9.15±2.42Bb	1.64±0.37Bb	483.61±126.16Ab
红色金银花	8.55±1.53BCb	1.52±0.89Bb	473.10±73.59Ab
平邑山花子金银花	6.02±1.76CDc	0.65±0.42Cc	273.35±21.03Bc
‘北花1号’金银花	12.89±0.76Aa	4.44±0.81Aa	651.83±42.05Aa
‘九丰1号’金银花	3.51±1.82Dd	0.33±0.69Cc	210.27±21.03Bc

植物种类	气孔长/μm	气孔宽/μm	气孔密度/(个/mm²)
四季金银花	9.15±2.42Bb	1.64±0.37Bb	483.61±126.16Ab
红色金银花	8.55±1.53BCb	1.52±0.89Bb	473.10±73.59Ab
平邑山花子金银花	6.02±1.76CDc	0.65±0.42Cc	273.35±21.03Bc
‘北花1号’金银花	12.89±0.76Aa	4.44±0.81Aa	651.83±42.05Aa
‘九丰1号’金银花	3.51±1.82Dd	0.33±0.69Cc	210.27±21.03Bc

植物种类	叶脉密度/(个/mm)	中脉厚度/mm
四季金银花	4.4103	0.4001
红色金银花	5.5928	0.4951
平邑山花子金银花	4.4120	0.4518
‘北花1号’金银花	3.4211	0.6000
‘九丰1号’金银花	4.6396	0.3622