Resistance of plants colonized by associative microorganisms to xenobiotics and phytopathogens

The aim of our work was to study the colonization of potato, tomato, rapeseed and camelina by associative microorganisms Methylobacterium mesophilicum, Pseudomonas aureofaciens BS1393 and Pseudomonas putida BS3701; examine the resistance of colonized plants to biotic (phytopathogens Erwinia carotovora and Sclerotinia sclerotiorum) and abiotic (naphthalene, oil) stressors. Colonized plants were characterized by an increased growth rate (1.5–2.0 times higher) compared to non-colonized ones; flower-bud formation, flowering and fructification of the colonized plants also started earlier. An increased resistance of colonized plants to phytopathogens, naphthalene (100 mµ/ml) and oil (0.7 %) was noted, too. The level of superoxide dismutase (SOD) in control plants on a medium with naphthalene or oil increased by 160–150%; in colonized plants – by 20–18 %. Colonized plants were more viable because of the presence of P. putida BS3701 on the roots.

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Effects of Bulb Storage Temperature on Flower-bud Formation and Dormancy Breaking in Interspecific Hybrids of Lilium × formolongi hort. × L. rubellum Baker

Horticultural Research (Japan) ◽

10.2503/hrj.1.165 ◽

2002 ◽

Vol 1 (3) ◽

pp. 165-167 ◽

Cited By ~ 1

Author(s):

Seiichi Suzuki ◽

Koki Kanahama

Keyword(s):

Interspecific Hybrids ◽

Storage Temperature ◽

Dormancy Breaking ◽

Flower Bud ◽

Bud Formation ◽

Flower Bud Formation

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Factors influencing flower bud formation on the pear tree cultivar 'Doyenne du Comice'. I. Shoot growth and flower bud differentiation on trees sprayed with chlormequat and unsprayed ones

Acta Agrobotanica ◽

10.5586/aa.1983.008 ◽

2013 ◽

Vol 36 (1-2) ◽

pp. 83-94 ◽

Cited By ~ 1

Author(s):

Franciszka Jaumień

Keyword(s):

Shoot Growth ◽

Apple Tree ◽

Flower Buds ◽

Flower Bud ◽

Bud Formation ◽

Pear Tree ◽

Factors Influencing ◽

Long Shoots ◽

Flower Bud Differentiation ◽

Flower Bud Formation

The growth of trees sprayed in spring with chlormequat is weaker, and their elongation growth ends 2 - 3 weeks earlier than that of unsprayed trees. Trees with growth inhibited by chlormequat set flower buds on the spurs and in the subapical part of long shoots. The course of flower bud differentiation starts in the second half of July and is similar to that in the apple tree.

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Chemical regulation of sex expression in certain olive cultivars

Acta Agrobotanica ◽

10.5586/aa.1982.018 ◽

2013 ◽

Vol 35 (2) ◽

pp. 185-190 ◽

Cited By ~ 1

Author(s):

E. S. Hegazi ◽

G. R. Stino

Keyword(s):

Growth Regulators ◽

Sex Expression ◽

Bud Burst ◽

Flower Bud ◽

Bud Formation ◽

Noticeable Increase ◽

Time Of Application ◽

Olive Cultivars ◽

Modifying Effect ◽

Flower Bud Formation

The modifying effect of growth regulators on bud burst, flower bud formation and sex expression in olives varies greatly according to cultivar, concentration and time of application. Cycocel 200, 500 mg/l, ethephon 200 mg/l and SADH 2000 mg/l stimulated bud burst and flower bud formation in the 'Blanquetta' cv. A noticeable increase in the percentage of perfect flowers was obtained by 100 mg/l of kinetin, and 200 mg/l of Cycocel in the cv. 'Picual', Ethephon 200/1, Cycocel 200 mg/l and SADH 2000 mg/l considerably increased the percentage of perfect flowers in the cvs 'Blanquetta', 'Serrana' and 'Picual'. Treatments at green cluster stage were not effective.

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