Laboratory of Plant Physiology, Institute of Botany of Nature Research Centre, Akademijos 2, 08412 Vilnius, Lithuania.
J Plant Res. 2013 Mar;126(2):283-92. doi: 10.1007/s10265-012-0525-3. Epub 2012 Oct 20.
The effect of the auxin physiological analogues analogues 1-[2-chloroethoxycarbonylmethyl]-4-naphthalenesulfonic acid calcium salt (TA-12) and 1-[2-dimethylaminoethoxicarbonylmethyl]naphthalene chlormethylate (TA-14) TA-14 on different winter rapeseed cultivars were studied with regard to their autumnal growth, cold hardening, accumulation of the stress-protective metabolites proline and saccharide in plant organs: apical bud and root collum, winter survival and productivity formation. The test cultivars were the very early 'Libea' medium-resistant to wintering, the medium-early 'Sunday' resistant to wintering, the medium-early 'Valesca' less than medium resistant to wintering, and the early 'Hornet' (hybrid) tolerant to stress growth conditions. During the period of cold hardening in natural field conditions, the test compounds TA-12 (2 mM) and TA-14 (4 mM), applied to different winter rapeseed cultivars at the 4th-5th leaf stage, stimulate accumulation proline and saccharides (sucrose and glucose) in the root collum and apical bud tissues, influence plants acclimation to cold, overwintering and productivity formation. Compounds TA-12 and especially TA-14 produced a stable effect on seed and crude fat yield in cvs. 'Hornet', 'Sunday' and 'Libea'. The genotypic peculiarities of a cultivar and the meteorological conditions of the plant vegetation period were the factors that mostly determined fatty acid content in seed oil.
研究了生长素生理类似物 1-[2-氯乙氧羰基甲基]-4-萘磺酸钙盐（TA-12）和 1-[2-二甲氨基乙氧羰基甲基]萘氯甲基酯（TA-14）对不同冬油菜品种秋生长、抗寒性、器官中应激保护代谢物脯氨酸和糖的积累的影响：顶芽和根颈。测试品种为中抗越冬的极早熟品种‘Libea’、中抗越冬的中早熟品种‘Sunday’、中抗越冬的中早熟品种‘Valesca’和抗应激生长条件的早熟品种‘Hornet’（杂种）。在自然田间条件下的抗寒期，测试化合物 TA-12（2 mM）和 TA-14（4 mM）在第 4-5 叶期施用于不同的冬油菜品种，刺激根颈和顶芽组织中脯氨酸和糖（蔗糖和葡萄糖）的积累，影响植物对寒冷的适应、越冬和生产力形成。化合物 TA-12 和 TA-14 对‘Hornet’、‘Sunday’和‘Libea’品种的种子和粗脂肪产量产生了稳定的影响。品种的基因型特性和植物生长期间的气象条件是决定种子油中脂肪酸含量的主要因素。
