1. Conclusion Adding different biotic and abiotic elicitors may selectively promote tanshinone accumulation and not affect the hairy root growth in the hairy root cultures of S. miltiorrhiza.

2. Abiotic environment The nonliving factors of the environment that influence ecological systems.

3. The relentless push and pull of coevolutionary life eventually brings into its game the abiotic stuff of the universe.

4. This was based on the idea that the first life forms were the outcome of a slow, multistep process that began with the abiotic synthesis of organic compounds and the formation of a 'primitive soup'.

5. From our study, we verified that plants did not response to biotic and abiotic stress independently.

6. Wild rice contains a large number of favorable gene which have disappeared in the cultivated rice, especially the resistance genes to biotic stesses and abiotic stresses.

7. It had been thought that salt and alkali, drought, and chillness were the three most serious abiotic stress factors that could restrict the growth, development and yield of crops for a long time.

8. How is life limited by and adapted to extreme external biotic and abiotic factors?

9. S. miltiorrhiza hairy root cultures provide a stable and efficient platform for active constituent accumulations by using elicitation with suitable biotic and abiotic elicitors.

10. Phenanthrene and pyrene in soil are based on microbial degradation, followed by abiotic degradation such as volatilization,[http://sentencedict.com/abiotic.html] chemical degradation.

11. On the earth's surface the artificial divisions that we have made between living and non-living, biotic and abiotic, organic and inorganic, are not only false but mischievous.

12. The phytohormone abscisic acid (ABA) is not only involved in the plant abiotic stress response but also plays a major role in the regulation of various biotic stress responses.

13. Accumulation of proline in higher plants is an indication of disturbed physiological condition, triggered by biotic or abiotic stress condition.

14. Many of the plant retrotransposons are transcriptionally activated by various biotic and abiotic stress factors.

15. ABA, an important phytohormone induced by biotic stress and abiotic stress, plays great roles in plant tolerance to stresses.

16. Under present conditions, the phytoplankton in Lake Okeechobee are often light-limited due to a combination of abiotic turbidity and a relatively high lake stage.

17. In plant cells, actin cytoskeleton plays important roles in response to biotic and abiotic stresses.