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An overview of the life of an orchid protocorm -a developmental perspective

机译：兰花预热器的寿命概述 - 发展观点

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摘要

The orchid protocorm is a unique structure formed as a seed germinates. It is designed to house and regulate the growth of its mycorrhizal symbiont. This structure is also responsible for the formation of the shoot apical meristem, enabling plantlet development. The protocorm has remarkable physiological properties - it can limit the growth of fungal hyphae to basal protocorm cells. The protocorm cells are capable of digesting pelotons, allowing the extraction of nutrients from fungal hyphae. Duringthe establishment of a symbiotic association, the meristematic cells at the apical end are well-protected from the fungal hyphae. The smaller apical cells maintain active mitotic activity and are responsible for the formation of the shoot apical meristem, without which a plant will not develop. Adventitious root primordia are subsequently initiated endogenously near the base of the shoot apical meristem. It is envisaged that there is cross-talk among the protocorm cells, leading to the observed morphogenetic changes. Although protocorms have remarkable biological capabilities, protocorms must content with several challenges in nature as they endure various biotic and abiotic stresses and factors to develop into adult plants.
机译：兰花质子形成是一种形成为种子发芽的独特结构。它旨在容纳并规范其菌根患者的生长。这种结构也负责形成拍摄顶端公司的形成，从而实现流域发育。该质子膜具有显着的生理特性 - 它可以将真菌菌丝的生长限制为基础促进细胞。质子导味细胞能够消化偶联，允许从真菌菌丝中提取营养素。在建立共生关联期间，顶端的共源细胞受到真菌菌丝的良好保护。较小的顶端细胞保持活性有丝分裂活性，并负责形成芽顶部的组成，没有哪种植物不会产生。随后在拍摄顶端公司的底部内源性引发不定根原序。设想了骨科细胞之间的交叉谈话，导致观察到的形态发生变化。虽然质子导致具有显着的生物能力，但原子传染性必须满足于自然界的几种挑战，因为它们持续各种生物和非生物胁迫和因素发展成成人植物。

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