外源小球藻对干旱胁迫下烤烟幼苗生理特性的影响

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关键词：小球藻；固氮；干旱；烤烟

doi：10.13304/j.nykjdb.2023.0797

中图分类号：S572 文献标志码：A 文章编号：1008-0864（2025）06-0064-08

Effect of Exogenous Chlorella vulgaris on Physiological Characteristics of Flue-cured Tobacco Seedlings UnderDroughtStress

ZOU Shenghao ，YUQiwei 28 ，HEShuai²，ZHANGXuewei³，MAQian²，MAGuanka 2 ，XI Feihu1， LUO Dongshengl，WANG Maoxian²*，LUO Zhenbao 2* ， JING Yanqiu1* （1.Colege ofTobacco，HenanAgriculturalUniversity，Zhengzhou450o2，China；2.GuizhouProvince Tobacco CompanyBiie City Company，Guizhou Bijie551799，China;3.China TobaccoGuangdong IndustrialCo.，Ltd.，，Guangzhou510599，China）

Abstract：To study theefect of exogenous Chlorellonphysiological characteristicsofflue-cured tobacco seedlings under drought stress，the tobacco variety‘Zhongyan1OO’was as the experimental material.The seedling of fluecured tobacco was sprayed water as control（CK），and treated withdrought（D），and was sprayed by5O（T1），100 （T2），15O times（T3）of Chlorellvulgaris on the basisof drought treatment.The physiological characteristics of flue-cured tobacco seedlings under diferent treatments were compared.The results showed that the application of Chlorella vulgaris increased the antioxidant enzymeactivity，soluble protein content，photosynthetic characteristics andchlorophyllcontent of tobacco，anddecreased thecontent of malondialdehyde and proline decreased.T1 treatment had the best efecton promoting growth and developmentof flue-cured tobacco under drought stress.In conclusion，theapplicationofChlorellvulgaris could effectivelyaleviatethe impactofdroughtstress onsedlingof flue-cured tobacco.

KeyWords：Chlorella vulgaris；nitrogen fixation；drought；flue-curedtobacco

微藻（microalgae）是一类能够进行光合自养的微生物，因其富含生物活性物质、大量的氮磷元素及维生素、氨基酸等物质被广泛应用于各种领域[-4，不仅能够改善土壤水肥条件，还能直接提供植物生长发育所需的营养从而提高产量5，且能提供植物激素如生长素、细胞分裂素等促进植物生长[6-8]。（剩余10622字）